Safety Warning
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.
2006 Lincoln ZephyrFACTORY OEM SERVICE PROCEDURE
DTC Index: Seating: DSM
DRIVER SEAT MODULE (DSM) DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Retrieved | Action |
|---|---|---|---|
| B1317 | Battery Voltage High | Continuous | REFER to CHARGING SYSTEM - GENERAL INFORMATION . |
| B1318 | Battery Voltage Low | Continuous | REFER to CHARGING SYSTEM - GENERAL INFORMATION . |
| B1342 | ECU Is Faulted | On-Demand and Continuous | INSTALL a new DSM. REFER to MULTIFUNCTION ELECTRONIC CONTROL MODULES . CARRY OUT programmable module installation (PMI). REFER to MODULE CONFIGURATION . |
| B1663 | Seat Driver Front Up/Down Motor Stalled | On-Demand | If the motor does not operate, GO to PINPOINT TEST L . If motor operates, GO to PINPOINT TEST M . |
| B1664 | Seat Driver Rear Up/Down Motor Stalled | On-Demand | If the motor does not operate, GO to PINPOINT TEST L . If motor operates, GO to PINPOINT TEST M . |
| B1665 | Seat Driver Forward/Backward Motor Stalled | On-Demand | If the motor does not operate, GO to PINPOINT TEST L . If motor operates, GO to PINPOINT TEST M . |
| B1666 | Seat Driver Recline Motor Stalled | On-Demand | If the motor does not operate, GO to PINPOINT TEST L . If motor operates, GO to PINPOINT TEST M . |
| B1667 | Mirror Driver Up/Down Motor Stalled | On-Demand | REFER to REAR VIEW MIRRORS . |
| B1668 | Mirror Driver Right/Left Motor Stalled | On-Demand | REFER to REAR VIEW MIRRORS . |
| B1669 | Mirror Passenger Up/Down Motor Stalled | On-Demand | REFER to REAR VIEW MIRRORS . |
| B1670 | Mirror Passenger Right/Left Motor Stalled | On-Demand | REFER to REAR VIEW MIRRORS . |
| B1703 | Seat Driver Recline Forward Switch Circuit Short to Battery | On-Demand and Continuous | GO to PINPOINT TEST L . |
| B1707 | Seat Driver Recline Rearward Switch Circuit Short to Battery | On-Demand and Continuous | GO to PINPOINT TEST L . |
| B1711 | Seat Driver Front Up Switch Circuit Short to Battery | On-Demand and Continuous | GO to PINPOINT TEST L . |
| B1715 | Seat Driver Front Down Switch Circuit Short to Battery | On-Demand and Continuous | GO to PINPOINT TEST L . |
| B1719 | Seat Driver Forward Switch Circuit Short to Battery | On-Demand and Continuous | GO to PINPOINT TEST L . |
| B1723 | Seat Driver Rearward Switch Circuit Short to Battery | On-Demand and Continuous | GO to PINPOINT TEST L . |
| B1727 | Seat Driver Rear Up Switch Circuit Short to Battery | On-Demand and Continuous | GO to PINPOINT TEST L . |
| B1731 | Seat Driver Rear Down Switch Circuit Short to Battery | On-Demand and Continuous | GO to PINPOINT TEST L . |
| B1952 | Seat Rear Up/Down Position Feedback Circuit Short to Battery | On-Demand and Continuous | GO to PINPOINT TEST M . |
| B1953 | Seat Rear Up/Down Position Feedback Circuit Short to Ground | On-Demand and Continuous | GO to PINPOINT TEST M . |
| B1956 | Seat Front Up/Down Position Feedback Circuit Short to Battery | On-Demand and Continuous | GO to PINPOINT TEST M . |
| B1957 | Seat Front Up/Down Position Feedback Circuit Short to Ground | On-Demand and Continuous | GO to PINPOINT TEST M . |
| B1960 | Seat Recline Forward/Backward Position Feedback Circuit Short to Battery | On-Demand and Continuous | GO to PINPOINT TEST M . |
| B1961 | Seat Recline Forward/Backward Position Feedback Circuit Short to Ground | On-Demand and Continuous | GO to PINPOINT TEST M . |
| B1964 | Seat Horizontal Forward/Rearward Position Feedback Circuit Short to Battery | On-Demand and Continuous | GO to PINPOINT TEST M . |
| B1965 | Seat Horizontal Forward/Rearward Position Feedback Circuit Short to Ground | On-Demand and Continuous | GO to PINPOINT TEST M . |
| B2143 | Non Volatile Memory Failure (EEPROM) | Continuous | REFLASH the DSM. REFER to MODULE CONFIGURATION . CLEAR the DTCs. REPEAT the self-test. If the DTC resets, INSTALL a new DSM and CARRY OUT programmable module installation (PMI). REFER to MULTIFUNCTION ELECTRONIC CONTROL MODULES . |
| B2223 | Mirror Driver Drive Circuit Failure | On-Demand and Continuous | REFER to REAR VIEW MIRRORS . |
| B2224 | Mirror Passenger Drive Circuit Failure | On-Demand and Continuous | REFER to REAR VIEW MIRRORS . |
| B2312 | Mirror Passenger Horizontal Feedback Potentiometer Circuit Failure | On-Demand and Continuous | REFER to REAR VIEW MIRRORS . |
| B2314 | Mirror Passenger Horizontal Feedback Potentiometer Circuit Short to Battery | On-Demand and Continuous | REFER to REAR VIEW MIRRORS . |
| B2316 | Mirror Passenger Vertical Feedback Potentiometer Circuit Failure | On-Demand and Continuous | REFER to REAR VIEW MIRRORS . |
| B2318 | Mirror Passenger Vertical Feedback Potentiometer Circuit Short to Battery | On-Demand and Continuous | REFER to REAR VIEW MIRRORS . |
| B2477 | Module Configuration Failure | Continuous | INSTALL a new DSM. REFER to MULTIFUNCTION ELECTRONIC CONTROL MODULES . CARRY OUT programmable module installation (PMI). REFER to MODULE CONFIGURATION . |
| U1900 | CAN Communication Bus Fault - Receive Error | On-Demand and Continuous |
NOTE:
Do not install a new DSM as part of repair for a DSM DTC U1900 fault. The DSM is not the source of the fault when DTC U1900 is present. If DTC U1900 is present on-demand, CHECK the instrument cluster module for DTCs and REPAIR as needed. REFER to
INSTRUMENT CLUSTER
. If DTC U1900 is present continuous only, CHECK for an intermittent MS-CAN fault. REFER to
MODULE COMMUNICATIONS NETWORK
to diagnose the MS-CAN network concern. |
| U2050 | No Application Code Present | On-Demand and Continuous | REFLASH the DSM. REFER to MODULE CONFIGURATION . CLEAR the DTC. REPEAT the self-test. If the DTC does not clear or is retrieved again, INSTALL a new DSM and CARRY OUT programmable module installation (PMI). REFER to MULTIFUNCTION ELECTRONIC CONTROL MODULES . |
Factory Service Tools
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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.
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