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DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMERCURY2009MILAN PREMIER, 3.0 1, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1687 (MULTIFUNCTION ELECTRONIC MODULES)DIAGNOSTIC TESTSDTC CHART
2009 Mercury Milan Premier, 3.0 1, AWD
DTC Chart
2009 Mercury Milan Premier, 3.0 1, AWDSECTION DTC Chart
WARNING: This page is about a different car, the 2010 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Most powertrain (P-code) DTCs are diagnosed in the Introduction - Gasoline Engines
article. If the P-code retrieved is not listed below, refer to the Introduction - Gasoline Engines
article to continue diagnostics.
DIAGNOSTIC TROUBLE CODE INDEX
| DTC | Description | Source | Action |
|---|---|---|---|
| B113A | Rear Audio Switch Stuck | Rear Audio and Temperature Control (RATC) Module | REFER to INFORMATION & ENTERTAINMENT SYSTEMS article. |
| B113B | Rear Audio Switch Circuit Short to Ground | RATC Module | REFER to INFORMATION & ENTERTAINMENT SYSTEMS article. |
| B113C | Rear Audio Switch Circuit Short to Battery | RATC Module | REFER to INFORMATION & ENTERTAINMENT SYSTEMS article. |
| B113D | Rear Climate Control Switch Stuck | RATC Module | REFER to CLIMATE CONTROL SYSTEM - GENERAL INFORMATION & DIAGNOSTICS article. |
| B113E | Rear Climate Control Switch Circuit Short to Ground | RATC Module | REFER to CLIMATE CONTROL SYSTEM - GENERAL INFORMATION & DIAGNOSTICS article. |
| B113F | Rear Climate Control Switch Circuit Short to Battery | RATC Module | REFER to CLIMATE CONTROL SYSTEM - GENERAL INFORMATION & DIAGNOSTICS article. |
| B1148 | Radio Frequency Power Output Circuit Short to Ground | Driver Door Module (DDM) | REFER to HANDLES, LOCKS, LATCHES & ENTRY SYSTEMS article. |
| B1149 | Radio Frequency Enable Output Circuit Short to Battery | DDM | REFER to HANDLES, LOCKS, LATCHES & ENTRY SYSTEMS article. |
| B1150 | Radio Frequency Enable Output Circuit Short to Ground | DDM | REFER to HANDLES, LOCKS, LATCHES & ENTRY SYSTEMS article. |
| B1151 | Radio Frequency AM/FM Signal Key Select Output Circuit Short to Ground | DDM | REFER to HANDLES, LOCKS, LATCHES & ENTRY SYSTEMS article. |
| B1152 | Radio Frequency AM/FM Signal Key Select Output Circuit Short to Battery | DDM | REFER to HANDLES, LOCKS, LATCHES & ENTRY SYSTEMS article. |
| B1200 | Climate Control Pushbutton Circuit Failure | Heating Ventilation Air Conditioning (HVAC) Module | REFER to CLIMATE CONTROL SYSTEM - GENERAL INFORMATION & DIAGNOSTICS article. |
| B1202 | Fuel Sender Circuit Open | Instrument Cluster (IC) | REFER to INSTRUMENTATION, MESSAGE CENTER, & WARNING CHIMES article. |
| B1204 | Fuel Sender Circuit Short to Ground | IC | REFER to INSTRUMENTATION, MESSAGE CENTER, & WARNING CHIMES article. |
| B1205 | EIC Switch-1 Assembly Circuit Failure | IC | REFER to INSTRUMENTATION, MESSAGE CENTER, & WARNING CHIMES article. |
| B1206 | EIC Switch-1 Assembly Circuit Open | IC | REFER to INSTRUMENTATION, MESSAGE CENTER, & WARNING CHIMES article. |
| B1208 | EIC Switch-1 Assembly Circuit Short To Ground | IC | REFER to INSTRUMENTATION, MESSAGE CENTER, & WARNING CHIMES article. |
| B1209 | EIC Switch-2 Assembly Circuit Failure | IC | REFER to INSTRUMENTATION, MESSAGE CENTER, & WARNING CHIMES article. |
| B1210 | EIC Switch-2 Assembly Circuit Open | IC | REFER to INSTRUMENTATION, MESSAGE CENTER, & WARNING CHIMES article. |
| B1212 | EIC Switch-2 Assembly Circuit Short To Ground | IC | REFER to INSTRUMENTATION, MESSAGE CENTER, & WARNING CHIMES article. |
| B1213 | Anti-Theft Number of Programmed Keys is Below Minimum | PCM | REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) article. |
| B1231 | Event Threshold Exceeded | Restraints Control Module (RCM) | REFER to DIAGNOSTIC TESTS article. |
| B1242 | Air Flow Recirculation Door Driver Circuit Failure | HVAC Module | REFER to CLIMATE CONTROL SYSTEM - GENERAL INFORMATION & DIAGNOSTICS article. |
| B1251 | Air Temperature Internal Sensor Circuit Open | HVAC Module | REFER to CLIMATE CONTROL SYSTEM - GENERAL INFORMATION & DIAGNOSTICS article. |
| B1253 | Air Temperature Internal Sensor Circuit Short To Ground | HVAC Module | REFER to CLIMATE CONTROL SYSTEM - GENERAL INFORMATION & DIAGNOSTICS article. |
| B1255 | Air Temperature External Sensor Circuit Open | HVAC Module | REFER to CLIMATE CONTROL SYSTEM - GENERAL INFORMATION & DIAGNOSTICS article. |
| B1257 | Air Temperature External Sensor Circuit Short To Ground | HVAC Module | REFER to CLIMATE CONTROL SYSTEM - GENERAL INFORMATION & DIAGNOSTICS article. |
| B1259 | Solar Radiation Sensor Circuit Open | HVAC Module | REFER to CLIMATE CONTROL SYSTEM - GENERAL INFORMATION & DIAGNOSTICS article. |
| B1261 | Solar Radiation Sensor Circuit Short to Ground | HVAC Module | REFER to CLIMATE CONTROL SYSTEM - GENERAL INFORMATION & DIAGNOSTICS article. |
| B1263 | Servo Motor Vent Circuit Failure | HVAC Module | REFER to CLIMATE CONTROL SYSTEM - GENERAL INFORMATION & DIAGNOSTICS article. |
| B1264 | Servo Motor Foot Circuit Failure | HVAC Module | REFER to CLIMATE CONTROL SYSTEM - GENERAL INFORMATION & DIAGNOSTICS article. |
| B1317 | Battery Voltage High | DDM | REFER to CHARGING SYSTEM - GENERAL INFORMATION article. |
| B1317 | Battery Voltage High | IC | REFER to CHARGING SYSTEM - GENERAL INFORMATION article. |
| B1317 | Battery Voltage High | Parking Aid Module (PAM) | REFER to CHARGING SYSTEM - GENERAL INFORMATION article. |
| B1317 | Battery Voltage High | RCM | REFER to CHARGING SYSTEM - GENERAL INFORMATION article. |
| B1317 | Battery Voltage High | Vehicle Dynamics Module (VDM) | REFER to VEHICLE DYNAMIC SUSPENSION article. |
| B1318 | Battery Voltage Low | DDM | REFER to CHARGING SYSTEM - GENERAL INFORMATION article. |
| B1318 | Battery Voltage Low | IC | REFER to CHARGING SYSTEM - GENERAL INFORMATION article. |
| B1318 | Battery Voltage Low | PAM | REFER to CHARGING SYSTEM - GENERAL INFORMATION article. |
| B1318 | Battery Voltage Low | RCM | REFER to CHARGING SYSTEM - GENERAL INFORMATION article. |
| B1318 | Battery Voltage Low | VDM | REFER to VEHICLE DYNAMIC SUSPENSION article. |
| B1322 | Driver Door Ajar Circuit Short to Ground | DDM | REFER to INTERIOR LIGHTING article. |
| B1334 | Decklid Ajar Rear Door Circuit Short to Ground | Lighting Control Module (LCM) | REFER to INTERIOR LIGHTING article. |
| B1342 | ECU is Faulted | ABS Module | CLEAR the DTCs. REPEAT the self-test. If DTC B1342 is retrieved again, INSTALL a new ABS module. REFER to VEHICLE DYNAMIC SYSTEMS article. REPEAT the self-test. |
| B1342 | ECU is Faulted | Audio Unit | CLEAR the DTCs. REPEAT the self-test. If DTC B1342 is retrieved again, INSTALL a new audio unit. REFER to INFORMATION & ENTERTAINMENT SYSTEMS article. REPEAT the self-test. |
| B1342 | ECU is Faulted | DDM | CLEAR the DTCs. REPEAT the self-test. If DTC B1342 is retrieved again, INSTALL a new DDM. REFER to Driver Door Module (DDM) . REPEAT the self-test. |
| B1342 | ECU is Faulted | Driver Seat Module (DSM) | CLEAR the DTCs. REPEAT the self-test. If DTC B1342 is retrieved again, INSTALL a new DSM. REFER to Driver Seat Module (DSM) . REPEAT the self-test. |
| B1342 | ECU is Faulted | HVAC Module | REFER to CLIMATE CONTROL SYSTEM - GENERAL INFORMATION & DIAGNOSTICS article. |
| B1342 | ECU is Faulted | IC | CLEAR the DTCs. REPEAT the self-test. If DTC B1342 is retrieved again, INSTALL a new IC. REFER to INSTRUMENTATION, MESSAGE CENTER, & WARNING CHIMES article. REPEAT the self-test. |
| B1342 | ECU is Faulted | LCM | CLEAR the DTCs. REPEAT the self-test. If DTC B1342 is retrieved again, INSTALL a new LCM. REFER to Lighting Control Module (LCM) . REPEAT the self-test. |
| B1342 | ECU is Faulted | Liftgate/Trunk Module (LTM) | CLEAR the DTCs. REPEAT the self-test. If DTC B1342 is retrieved again, INSTALL a new LTM. REFER to BODY CLOSURES article. REPEAT the self-test. |
| B1342 | ECU is Faulted | PAM | CLEAR the DTCs. REPEAT the self-test. If DTC B1342 is retrieved again, INSTALL a new PAM. REFER to PARKING AID article. REPEAT the self-test. |
| B1342 | ECU is Faulted | PCM | CLEAR the DTCs. REPEAT the self-test. If DTC B1342 is retrieved again, INSTALL a new PCM. REFER to ELECTRONIC ENGINE CONTROLS article. CLEAR the DTCs. REPEAT the self-test. |
| B1342 | ECU is Faulted | RATC Module | CLEAR the DTCs. REPEAT the self-test. If DTC B1342 is retrieved again, INSTALL a new RATC module. REFER to Rear Audio and Temperature Control (RATC) Module . REPEAT the self-test. |
| B1342 | ECU is Faulted | RCM | CLEAR the DTCs. REPEAT the self-test. If DTC B1342 is retrieved again, INSTALL a new RCM. REFER to REMOVAL AND INSTALLATION article. REPEAT the self-test. |
| B1342 | ECU is Faulted | VDM | CLEAR the DTCs. REPEAT the self-test. If DTC B1342 is retrieved again, INSTALL a new VDM. REFER to VEHICLE DYNAMIC SUSPENSION article. REPEAT the self-test. |
| B1345 | Heated Backlite Input Circuit Short to Ground | DDM | REFER to GLASS, FRAMES & MECHANISMS article. |
| B1349 | Heated Backlite Relay Short to Battery | DDM | REFER to GLASS, FRAMES & MECHANISMS article. |
| B1352 | Ignition Key-In Circuit Failure | LCM | REFER to INSTRUMENTATION, MESSAGE CENTER, & WARNING CHIMES article. |
| B1359 | Ignition Run/Acc Circuit Failure | LCM | REFER to STEERING COLUMN SWITCHES article. |
| B1359 | Ignition Run/Acc Circuit Failure | LTM | REFER to BODY CLOSURES article. |
| B1396 | Power Door Lock Circuit Short to Battery | DDM | REFER to HANDLES, LOCKS, LATCHES & ENTRY SYSTEMS article. |
| B1397 | Power Door Unlock Circuit Short to Battery | DDM | REFER to HANDLES, LOCKS, LATCHES & ENTRY SYSTEMS article. |
| B1449 | Wiper Park Sense Circuit Short to Ground | LCM | REFER to EXTERIOR LIGHTING article. |
| B1472 | Lamp Headlamp Input Circuit Short To Ground | LCM | REFER to EXTERIOR LIGHTING article. |
| B1484 | Brake Pedal Input Open Circuit | ABS Module | REFER to VEHICLE DYNAMIC SYSTEMS article. |
| B1485 | Brake Pedal Input Short to Battery | LCM | REFER to AUTOMATIC TRANSAXLE/TRANSMISSION EXTERNAL CONTROLS article. |
| B1520 | Hood Switch Circuit Open | LCM | REFER to ANTI-THEFT - PERIMETER article. |
| B1529 | Memory Set Switch Circuit Short to Battery | DDM | REFER to SEATING article. |
| B1533 | Memory 1 Switch Circuit Short to Battery | DDM | REFER to SEATING article. |
| B1537 | Memory 2 Switch Circuit Short to Battery | DDM | REFER to SEATING article. |
| B1551 | Latch/Deck Lid Release Circuit Failure | LTM | REFER to BODY CLOSURES article. |
| B1553 | Decklid Release Circuit Short to Battery | DDM | REFER to HANDLES, LOCKS, LATCHES & ENTRY SYSTEMS article. |
| B1555 | Ignition Run/Start Circuit Failure | LCM | REFER to STEERING COLUMN SWITCHES article. |
| B1566 | Door Ajar Circuit Short to Ground | VDM | REFER to VEHICLE DYNAMIC SUSPENSION article. |
| B1566 | Door Ajar Circuit Short to Ground | DDM | REFER to INTERIOR LIGHTING article. |
| B1570 | Lamp Headlamp High-Beam Circuit Short to Ground | LCM | REFER to EXTERIOR LIGHTING article. |
| B1578 | Lamp Park Input Circuit Short to Ground | LCM | REFER to EXTERIOR LIGHTING article. |
| B1600 | PATS Ignition Key Transponder Signal is Not Received | PCM | REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) article. |
| B1601 | PATS Received Incorrect Key-Code From Ignition Key Transponder | PCM | REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) article. |
| B1602 | PATS Received Invalid Format of Key-Code From Ignition Key Transponder | PCM | REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) article. |
| B1627 | PRNDL Reverse Input Circuit Failure | PAM | REFER to PARKING AID article. |
| B1663 | Seat Driver Front Up/Down Motor Stalled | DSM | REFER to SEATING article. |
| B1664 | Seat Driver Rear Up/Down Motor Stalled | DSM | REFER to SEATING article. |
| B1665 | Seat Driver Forward/Backward Motor Stalled | DSM | REFER to SEATING article. |
| B1666 | Seat Driver Recline Motor Stalled | DSM | REFER to SEATING article. |
| B1667 | Mirror Driver Up/Down Motor Stalled | DSM | REFER to REAR VIEW MIRRORS article. |
| B1668 | Mirror Driver Right/Left Motor Stalled | DSM | REFER to REAR VIEW MIRRORS article. |
| B1669 | Mirror Passenger Up/Down Motor Stalled | DSM | REFER to REAR VIEW MIRRORS article. |
| B1670 | Mirror Passenger Right/Left Motor Stalled | DSM | REFER to REAR VIEW MIRRORS article. |
| B1676 | Battery Pack Voltage Out of Range | ABS Module | REFER to VEHICLE DYNAMIC SYSTEMS article. |
| B1676 | Battery Pack Voltage Out of Range | DSM | REFER to SEATING article. |
| B1676 | Battery Pack Voltage Out of Range | HVAC Module | REFER to CLIMATE CONTROL SYSTEM - GENERAL INFORMATION & DIAGNOSTICS article. |
| B1676 | Battery Pack Voltage Out of Range | LCM | REFER to CHARGING SYSTEM - GENERAL INFORMATION article. |
| B1681 | PATS Transceiver Module Signal is Not Received | PCM | REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) article. |
| B1688 | Lamp Dome Input Circuit Short to Ground | LCM | REFER to INTERIOR LIGHTING article. |
| B1696 | Autolamp On Circuit Short to Ground | LCM | REFER to EXTERIOR LIGHTING article. |
| B1869 | Lamp Air Bag Warning Indicator Circuit Open | RCM | REFER to DIAGNOSTIC TESTS article. |
| B1870 | Lamp Air Bag Warning Indicator Circuit Short to Battery | RCM | REFER to DIAGNOSTIC TESTS article. |
| B1873 | Turn Signal Hazard Power Feed Circuit Short to Ground | LCM | REFER to EXTERIOR LIGHTING article. |
| B1884 | PAD Warning Lamp Circuit Failure | RCM | REFER to DIAGNOSTIC TESTS article. |
| B1890 | PAD Warning Lamp Circuit Short to Battery | RCM | REFER to DIAGNOSTIC TESTS article. |
| B1891 | Air Bag Tone Warning Indicator Circuit Short to Battery | RCM | REFER to DIAGNOSTIC TESTS article. |
| B1892 | Air Bag Tone Warning Indicator Circuit Failure | RCM | REFER to DIAGNOSTIC TESTS article. |
| B1921 | Air Bag Diagnostic Monitor Ground Circuit Open | RCM | REFER to DIAGNOSTIC TESTS article. |
| B1950 | Seat Rear Up/Down Position Feedback Circuit Failure | DSM | REFER to SEATING article. |
| B1953 | Seat Rear Up/Down Position Feedback Circuit Short to Ground | DSM | REFER to SEATING article. |
| B1954 | Seat Front Up/Down Position Feedback Circuit Failure | DSM | REFER to SEATING article. |
| B1957 | Seat Front Up/Down Position Feedback Circuit Short to Ground | DSM | REFER to SEATING article. |
| B1958 | Seat Recline Forward/Backward Position Feedback Circuit Failure | DSM | REFER to SEATING article. |
| B1961 | Seat Recline Forward/Backward Position Feedback Circuit Short to Ground | DSM | REFER to SEATING article. |
| B1962 | Seat Horizontal Forward/Rearward Position Feedback Circuit Failure | DSM | REFER to SEATING article. |
| B1965 | Seat Horizontal Forward/Rearward Position Feedback Circuit Short to Ground | DSM | REFER to SEATING article. |
| B1987 | Pedal Forward/Rearward Motor Stalled | DSM | REFER to BRAKE SYSTEM - GENERAL INFORMATION article. |
| B1988 | Pedal Position Forward Switch Circuit Short to Battery | DSM | REFER to BRAKE SYSTEM - GENERAL INFORMATION article. |
| B1989 | Pedal Position Rearward Switch Circuit Short to Battery | DSM | REFER to BRAKE SYSTEM - GENERAL INFORMATION article. |
| B1990 | Pedal Forward/Rearward Potentiometer Feedback Circuit Failure | DSM | REFER to BRAKE SYSTEM - GENERAL INFORMATION article. |
| B2097 | Compass Module Failure | IC | REFER to INSTRUMENTATION, MESSAGE CENTER, & WARNING CHIMES article. |
| B2100 | Door Driver Key Cylinder Switch Failure | LCM | REFER to ANTI-THEFT - PERIMETER article. |
| B2103 | Antenna Not Connected | Audio Unit | REFER to INFORMATION & ENTERTAINMENT SYSTEMS article. |
| B2103 | Antenna Not Connected | PCM | REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) article. |
| B2108 | Trunk Key Cylinder Switch Failure | LCM | REFER to ANTI-THEFT - PERIMETER article. |
| B2143 | NVM Memory Failure | IC | REFER to INSTRUMENTATION, MESSAGE CENTER, & WARNING CHIMES article. |
| B2147 | Driver Seat Switch Fault | DDM | REFER to SEATING article. |
| B2212 | Panel Dim Switch Out of Range | LCM | REFER to INSTRUMENT CLUSTER & PANEL ILLUMINATION article. |
| B2266 | Left Side Blend Door Circuit Failure | HVAC Module | REFER to CLIMATE CONTROL SYSTEM - GENERAL INFORMATION & DIAGNOSTICS article. |
| B2267 | Right Side Blend Door Circuit Failure | HVAC Module | REFER to CLIMATE CONTROL SYSTEM - GENERAL INFORMATION & DIAGNOSTICS article. |
| B2268 | Steering Wheel Climate Control Circuit Open | HVAC Module | REFER to CLIMATE CONTROL SYSTEM - GENERAL INFORMATION & DIAGNOSTICS article. |
| B2269 | Steering Wheel Climate Control Circuit Short to Ground | HVAC Module | REFER to CLIMATE CONTROL SYSTEM - GENERAL INFORMATION & DIAGNOSTICS article. |
| B2275 | Pedal Forward/Rearward Pot. Feedback Ckt. Short to GND | DSM | REFER to BRAKE SYSTEM - GENERAL INFORMATION article. |
| B2276 | Less Than 2 Transmitters Programmed | DDM | REFER to HANDLES, LOCKS, LATCHES & ENTRY SYSTEMS article. |
| B2290 | Occupant Classification System Fault | RCM | REFER to DIAGNOSTIC TESTS article. |
| B2292 | Restraint System - Seatbelt Pretensioner Fault | RCM | REFER to DIAGNOSTIC TESTS article. |
| B2293 | Restraint System - Airbag Fault | RCM | REFER to DIAGNOSTIC TESTS article. |
| B2295 | Restraint System - Side Airbag Fault | RCM | REFER to DIAGNOSTIC TESTS article. |
| B2296 | Restraint System - Impact Sensor Fault | RCM | REFER to DIAGNOSTIC TESTS article. |
| B2312 | Mirror Passenger Horizontal Feedback Potentiometer Circuit Failure | DSM | REFER to REAR VIEW MIRRORS article. |
| B2315 | Mirror Passenger Horizontal Feedback Potentiometer Circuit Short to Ground | DSM | REFER to REAR VIEW MIRRORS article. |
| B2316 | Mirror Passenger Vertical Feedback Potentiometer Circuit Failure | DSM | REFER to REAR VIEW MIRRORS article. |
| B2319 | Mirror Passenger Vertical Feedback Potentiometer Circuit Short to Ground | DSM | REFER to REAR VIEW MIRRORS article. |
| B2320 | Mirror Driver Horizontal Feedback Potentiometer Circuit Failure | DSM | REFER to REAR VIEW MIRRORS article. |
| B2323 | Mirror Driver Horizontal Feedback Potentiometer Circuit Short to Ground | DSM | REFER to REAR VIEW MIRRORS article. |
| B2324 | Mirror Driver Vertical Feedback Potentiometer Circuit Failure | DSM | REFER to REAR VIEW MIRRORS article. |
| B2327 | Mirror Driver Vertical Feedback Potentiometer Circuit Short to Ground | DSM | REFER to REAR VIEW MIRRORS article. |
| B2336 | Mirror Switch Assembly Circuit Failure | DDM | REFER to REAR VIEW MIRRORS article. |
| B2373 | LED #1 Circuit Short to Battery | DDM | REFER to SEATING article. |
| B2401 | Audio Tape Deck Mechanism Fault | Audio Unit | REFER to INFORMATION & ENTERTAINMENT SYSTEMS article. |
| B2403 | Audio CD/DJ Internal Fault | Audio Unit | REFER to INFORMATION & ENTERTAINMENT SYSTEMS article. |
| B2405 | Audio Disc CD Player Thermal Shutdown Fault | Audio Unit | REFER to INFORMATION & ENTERTAINMENT SYSTEMS article. |
| B2406 | Audio Disc CD Player Internal Fault | Audio Unit | REFER to INFORMATION & ENTERTAINMENT SYSTEMS article. |
| B2418 | Sensor Power Short to Ground | LTM | REFER to BODY CLOSURES article. |
| B2419 | Sensor 1 Invalid | LTM | REFER to BODY CLOSURES article. |
| B2420 | Sensor 2 Invalid | LTM | REFER to BODY CLOSURES article. |
| B2421 | VSS Stuck High | LTM | REFER to BODY CLOSURES article. |
| B2425 | Remote Keyless Entry Out of Synchronization | DDM | REFER to HANDLES, LOCKS, LATCHES & ENTRY SYSTEMS article. |
| B2432 | Drivers Seat Belt Buckle Switch Circuit Open | RCM | REFER to DIAGNOSTIC TESTS article. |
| B2433 | Drivers Seat Belt Buckle Switch Circuit Short to Battery | RCM | REFER to DIAGNOSTIC TESTS article. |
| B2434 | Drivers Seat Belt Buckle Switch Circuit Short to Ground | RCM | REFER to DIAGNOSTIC TESTS article. |
| B2435 | Drivers Seat Belt Buckle Switch Resistance Out of Range | RCM | REFER to DIAGNOSTIC TESTS article. |
| B2436 | Passengers Seat Belt Buckle Switch Circuit Open | RCM | REFER to DIAGNOSTIC TESTS article. |
| B2437 | Passengers Seat Belt Buckle Switch Circuit Short to Battery | RCM | REFER to DIAGNOSTIC TESTS article. |
| B2438 | Passengers Seat Belt Buckle Switch Circuit Short to Ground | RCM | REFER to DIAGNOSTIC TESTS article. |
| B2439 | Passengers Seat Belt Buckle Switch Resistance Out of Range | RCM | REFER to DIAGNOSTIC TESTS article. |
| B2477 | Module Configuration Failure | Audio Unit | REFER to MODULE CONFIGURATION article. |
| B2477 | Module Configuration Failure | DDM | REFER to MODULE CONFIGURATION article. |
| B2477 | Module Configuration Failure | HVAC Module | REFER to MODULE CONFIGURATION article. |
| B2477 | Module Configuration Failure | IC | REFER to MODULE CONFIGURATION article. |
| B2477 | Module Configuration Failure | LCM | REFER to MODULE CONFIGURATION article. |
| B2477 | Module Configuration Failure | RATC Module | REFER to MODULE CONFIGURATION article. |
| B2477 | Module Configuration Failure | RCM | REFER to MODULE CONFIGURATION article. |
| B2477 | Module Configuration Failure | VDM | REFER to MODULE CONFIGURATION article. |
| B2522 | VBatt 1 Circuit Failure | LTM | REFER to BODY CLOSURES article. |
| B2552 | Vbatt 2 Circuit Open | LTM | REFER to BODY CLOSURES article. |
| B2695 | Keypad_A Switch Circuit Failure | DDM | REFER to HANDLES, LOCKS, LATCHES & ENTRY SYSTEMS article. |
| B2696 | Keypad_B Switch Circuit Failure | DDM | REFER to HANDLES, LOCKS, LATCHES & ENTRY SYSTEMS article. |
| B2697 | Keypad_C Switch Circuit Failure | DDM | REFER to HANDLES, LOCKS, LATCHES & ENTRY SYSTEMS article. |
| B2698 | Vbatt 2 Circuit Failure | LTM | REFER to BODY CLOSURES article. |
| B2703 | Open/Close Switch Stuck Active | LTM | REFER to BODY CLOSURES article. |
| B2718 | Liftgate/Decklid Ajar Output Short to Battery | DDM | REFER to HANDLES, LOCKS, LATCHES & ENTRY SYSTEMS article. |
| B2718 | Liftgate/Decklid Ajar Output Short to Battery | LTM | REFER to BODY CLOSURES article. |
| B2721 | Liftgate/Decklid Ajar Output Short to Ground or Open | LTM | REFER to BODY CLOSURES article. |
| B2748 | Left Drive Motor Open Circuit | LTM | REFER to BODY CLOSURES article. |
| B2755 | Left Drive Short to Battery | LTM | REFER to BODY CLOSURES article. |
| B2757 | Left Drive Output Short to Ground | LTM | REFER to BODY CLOSURES article. |
| B2792 | Cross Link Between Firing Loops | RCM | REFER to DIAGNOSTIC TESTS article. |
| B2825 | Movement Ceased Due To Excessive Speed Deviation | LTM | REFER to BODY CLOSURES article. |
| B2868 | Left Front Tire Pressure Sensor Fault | DDM | This DTC is only present when a new DDM is installed, or the DDM is configured. REFER to WHEELS & TIRES article to preform the tire pressure monitoring system (TPMS) sensor training in order to clear this DTC. |
| B2869 | Right Front Tire Pressure Sensor Fault | DDM | This DTC is only present when a new DDM is installed, or the DDM is configured. REFER to WHEELS & TIRES article to preform the tire pressure monitoring system (TPMS) sensor training in order to clear this DTC. |
| B2870 | Right Rear Tire Pressure Sensor Fault | DDM | This DTC is only present when a new DDM is installed, or the DDM is configured. REFER to WHEELS & TIRES article to preform the tire pressure monitoring system (TPMS) sensor training in order to clear this DTC. |
| B2871 | Left Rear Tire Pressure Sensor Fault | DDM | This DTC is only present when a new DDM is installed, or the DDM is configured. REFER to WHEELS & TIRES article to preform the tire pressure monitoring system (TPMS) sensor training in order to clear this DTC. |
| B2872 | Tire Pressure Sensor Fault | DDM | REFER to WHEELS & TIRES article. |
| B2876 | Striker Drive Motor Short to Battery | LTM | REFER to BODY CLOSURES article. |
| B2877 | Striker Drive Output Short to Ground | LTM | REFER to BODY CLOSURES article. |
| B2905 | Striker Drive Motor Open Circuit | LTM | REFER to BODY CLOSURES article. |
| B2906 | Striker Up Switch Input Invalid | LTM | REFER to BODY CLOSURES article. |
| B2907 | Striker Down Switch Input Invalid | LTM | REFER to BODY CLOSURES article. |
| B2908 | Latch Switch Invalid | LTM | REFER to BODY CLOSURES article. |
| B2909 | Belt Tension Sensor Fault | RCM | REFER to DIAGNOSTIC TESTS article. |
| B2910 | Striker Up/Striker Down Switch Mismatch | LTM | REFER to BODY CLOSURES article. |
| B2913 | Audio Subwoofer Not Connected | Audio Unit | REFER to INFORMATION & ENTERTAINMENT SYSTEMS article. |
| B2984 | Deployable Steering Column Circuit Open | RCM | REFER to DIAGNOSTIC TESTS article. |
| B2985 | Deployable Steering Column Circuit Short to Battery | RCM | REFER to DIAGNOSTIC TESTS article. |
| B2986 | Deployable Steering Column Circuit Short to Ground | RCM | REFER to DIAGNOSTIC TESTS article. |
| B2987 | Deployable Steering Column Circuit Resistance Low on Squib | RCM | REFER to DIAGNOSTIC TESTS article. |
| C1123 | Vehicle Speed Sensor Input Short to Battery | LTM | REFER to BODY CLOSURES article. |
| C1131 | Clutch Circuit Failure | LTM | REFER to BODY CLOSURES article. |
| C1145 | Speed Wheel Sensor RF Input Circuit Failure | ABS Module | REFER to VEHICLE DYNAMIC SYSTEMS article. |
| C1155 | Speed Wheel Sensor LF Input Circuit Failure | ABS Module | REFER to VEHICLE DYNAMIC SYSTEMS article. |
| C1165 | Speed Wheel Sensor RR Input Circuit Failure | ABS Module | REFER to VEHICLE DYNAMIC SYSTEMS article. |
| C1175 | Speed Wheel Sensor LR Input Circuit Failure | ABS Module | REFER to VEHICLE DYNAMIC SYSTEMS article. |
| C1222 | Speed Wheel Mismatch | ABS Module | REFER to VEHICLE DYNAMIC SYSTEMS article. |
| C1266 | ABS Valve Power Relay Circuit Failure | ABS Module | REFER to VEHICLE DYNAMIC SYSTEMS article. |
| C1296 | Wheel Speed LF Signal Fault | ABS Module | REFER to VEHICLE DYNAMIC SYSTEMS article. |
| C1297 | Wheel Speed RF Signal Fault | ABS Module | REFER to VEHICLE DYNAMIC SYSTEMS article. |
| C1298 | Wheel Speed RR Signal Fault | ABS Module | REFER to VEHICLE DYNAMIC SYSTEMS article. |
| C1299 | Wheel Speed LR Signal Fault | ABS Module | REFER to VEHICLE DYNAMIC SYSTEMS article. |
| C1300 | ABS Pump Motor Circuit Failure | ABS Module | REFER to VEHICLE DYNAMIC SYSTEMS article. |
| C1414 | Incorrect Module Design Level | RCM | REFER to DIAGNOSTIC TESTS article. |
| C1724 | Air Suspension Height Sensor Power Circuit Failure | VDM | REFER to VEHICLE DYNAMIC SUSPENSION article. |
| C1726 | Air Suspension Rear Pneumatic Failure | VDM | REFER to VEHICLE DYNAMIC SUSPENSION article. |
| C1742 | Rear Sounder Circuit Failure | PAM | REFER to PARKING AID article. |
| C1743 | Rear Sounder Circuit Short to Vbatt | PAM | REFER to PARKING AID article. |
| C1760 | Air Suspension Rear Height Sensor High (SE) Signal Circuit Failure | VDM | REFER to VEHICLE DYNAMIC SUSPENSION article. |
| C1770 | Air Suspension Vent Solenoid Output Circuit Failure | VDM | REFER to VEHICLE DYNAMIC SUSPENSION article. |
| C1790 | Air Suspension LR Air Spring/Shock Solenoid Output Circuit Failure | VDM | REFER to VEHICLE DYNAMIC SUSPENSION article. |
| C1795 | Air Suspension RR Air Spring/Shock Solenoid Output Circuit Failure | VDM | REFER to VEHICLE DYNAMIC SUSPENSION article. |
| C1805 | Mismatched PCM and/or ABS-TC Module | ABS Module | REFER to VEHICLE DYNAMIC SYSTEMS article. |
| C1830 | Air Suspension Compressor Relay Circuit Failure | VDM | REFER to VEHICLE DYNAMIC SUSPENSION article. |
| C1840 | Air Suspension Disable Switch Circuit Failure | VDM | REFER to VEHICLE DYNAMIC SUSPENSION article. |
| C1885 | Air Suspension RR Height Sensor Circuit Failure | VDM | REFER to VEHICLE DYNAMIC SUSPENSION article. |
| C1897 | Steering VAPS II Circuit Loop Failure | VDM | REFER to STEERING SYSTEM - GENERAL INFORMATION article. |
| C1920 | LED #1 Circuit Failure | DDM | REFER to SEATING article. |
| C1946 | Front Driver's Seat Track Position Switch Circuit Open | RCM | REFER to DIAGNOSTIC TESTS article. |
| C1947 | Front Driver's Seat Track Position Switch Circuit Short to Ground | RCM | REFER to DIAGNOSTIC TESTS article. |
| C1948 | Front Driver's Seat Track Position Switch Circuit Resistance Out of Range | RCM | REFER to DIAGNOSTIC TESTS article. |
| C1964 | Air Susp'n Air Compressor Request Exceeded Max Timing | VDM | REFER to VEHICLE DYNAMIC SUSPENSION article. |
| C1976 | Audio Steering Wheel Switch Circuit - Open Circuit | Audio Unit | REFER to INFORMATION & ENTERTAINMENT SYSTEMS article. |
| C1977 | Audio Steering Wheel Switch Circuit Short to GND | Audio Unit | REFER to INFORMATION & ENTERTAINMENT SYSTEMS article. |
| C1982 | Front Driver's Seat Track Position Switch Circuit Short to Battery | RCM | REFER to DIAGNOSTIC TESTS article. |
| C1985 | Back-up Aid Disable Switch Stuck Low | PAM | REFER to PARKING AID article. |
| C1990 | Incomplete Online Tests | VDM | REFER to VEHICLE DYNAMIC SUSPENSION article. |
| C1991 | Module Calibration Failure | VDM | REFER to VEHICLE DYNAMIC SUSPENSION article. |
| C1992 | Vehicle Speed Circuit Failure | PAM | REFER to PARKING AID article. |
| C2001 | Ride Height Calibration Error | VDM | REFER to VEHICLE DYNAMIC SUSPENSION article. |
| C2002 | Pneumatic Test Failure | VDM | REFER to VEHICLE DYNAMIC SUSPENSION article. |
| C2201 | Front Passenger's Seat Track Position Switch Circuit Open | RCM | REFER to SEATING article. |
| C2202 | Front Passenger's Seat Track Position Switch Circuit Short to Ground | RCM | REFER to SEATING article. |
| C2203 | Front Passenger's Seat Track Position Switch Circuit Short to Battery | RCM | REFER to SEATING article. |
| C2204 | Front Passenger's Seat Track Position Switch Circuit Resistance Out of Range | RCM | REFER to SEATING article. |
| C2775 | TC/AYC ON/OFF Switch Stuck Failure | ABS Module | REFER to VEHICLE DYNAMIC SYSTEMS article. |
| C2780 | ECU in Manufacturer Sub-State | DDM |
NOTE:
If DTC B2477 is also present, REFER to the Action for DDM DTC B2477 in this DTC Index. This DTC is only present when a new DDM is installed, or the DDM is configured. REFER to WHEELS & TIRES
article to preform the TPMS sensor training, then CARRY OUT the DDM self-test in order to clear this DTC. |
| P0622 | Generator Field Terminal Circuit | PCM | REFER to CHARGING SYSTEM - GENERAL INFORMATION article. |
| P1260 | Theft Detected, Vehicle Immobilized | PCM | REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) article. |
| PXXXX | All other DTCs | PCM | REFER to the Introduction - Gasoline Engines article. |
| U0002 | High Speed CAN Communication Bus Performance | IC | DISREGARD the DTC. REPAIR all other DTCs. CLEAR the DTCs. REPEAT the self-test. |
| U0073 | Control Module Communication Bus A Off | ABS Module | REFER to MODULE COMMUNICATIONS NETWORK article. |
| U0073 | Control Module Communication Bus A Off | VDM | REFER to MODULE COMMUNICATIONS NETWORK article. |
| U0100 | Lost Communication With ECM/PCM | VDM | REFER to MODULE COMMUNICATIONS NETWORK article. |
| U0155 | Lost Communication With Instrument Panel Cluster (IC) Control Module | VDM | REFER to MODULE COMMUNICATIONS NETWORK article. |
| U0184 | Lost Communication With Radio (ACM) | RATC Module | REFER to INFORMATION & ENTERTAINMENT SYSTEMS article. |
| U1040 | SCP (J1850) Invalid or Missing Data for Vehicle Speed | HVAC Module | REFER to the CLIMATE CONTROL SYSTEM - GENERAL INFORMATION & DIAGNOSTICS article. |
| U1041 | SCP (J1850) Invalid or Missing Data for Vehicle Speed | DDM | REPAIR all other DTCs. CLEAR the DTCs. REPEAT the self-test. |
| U1041 | SCP (J1850) Invalid or Missing Data for Vehicle Speed | LCM | REPAIR all other DTCs. CLEAR the DTCs. REPEAT the self-test. |
| U1059 | SCP (J1850) Invalid or Missing Data for Transmission/Transaxle/PRNDL | DDM | REPAIR all other DTCs. CLEAR the DTCs. REPEAT the self-test. |
| U1059 | SCP (J1850) Invalid or Missing Data for Transmission/Transaxle/PRNDL | LCM | REPAIR all other DTCs. CLEAR the DTCs. REPEAT the self-test. |
| U1073 | SCP (J1850) Invalid or Missing Data for Engine Coolant | HVAC Module | REFER to CLIMATE CONTROL SYSTEM - GENERAL INFORMATION & DIAGNOSTICS article. |
| U1112 | SCP (J1850) Invalid or Missing Data for Primary Id $70 | HVAC Module | REFER to INSTRUMENT CLUSTER & PANEL ILLUMINATION article. |
| U1135 | SCP (J1850) Invalid or Missing Data for Ignition Switch/Starter | DDM | REPAIR all other DTCs. CLEAR the DTCs. REPEAT the self-test. |
| U1178 | SCP (J1850) Invalid or Missing Data for Climate Control (HVAC) | RATC Module | REFER to CLIMATE CONTROL SYSTEM - GENERAL INFORMATION & DIAGNOSTICS article. |
| U1197 | SCP (J1850) Invalid or Missing Data for Door Locks | LCM | REFER to HANDLES, LOCKS, LATCHES & ENTRY SYSTEMS article. |
| U1199 | SCP (J1850) Invalid or Missing Data for External Access (Doors) | LCM | REFER to INTERIOR LIGHTING article. |
| U1262 | SCP (J1850) Communication Bus Fault | IC | REPAIR all other DTCs first. CLEAR the DTCs. CYCLE the key OFF then ON and wait 10 seconds. REPEAT the self-test. If DTC U1262 is still present, REFER to MODULE COMMUNICATIONS NETWORK article. |
| U1900 | CAN Communication Bus Fault - Receive Error | ABS Module | REFER to MODULE COMMUNICATIONS NETWORK article. |
| U1900 | CAN Communication Bus Fault - Receive Error | IC | REFER to MODULE COMMUNICATIONS NETWORK article. |
| U2013 | Compass Module is not Responding | IC | REFER to INSTRUMENTATION, MESSAGE CENTER, & WARNING CHIMES article. |
| U2023 | Fault Received From External Node | ABS Module | RETRIEVE and FOLLOW non-network DTCs from other modules. |
| U2023 | Fault Received From External Node | IC | RETRIEVE and FOLLOW non-network DTCs from other modules. |
| U2050 | No Application Present | DDM | REFER to MODULE CONFIGURATION article. |
| U2050 | No Application Present | IC | REFER to MODULE CONFIGURATION article. |
| U2050 | No Application Present | VDM | REFER to MODULE CONFIGURATION article. |
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.