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HOMESERVICE MANUALSFORD2004MUSTANG BASE, 2D COUPE, 3.9 6, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 105 (MODULE COMMUNICATIONS NETWORK)DIAGNOSTIC TROUBLE CODE DEFINITIONS

2004 Ford Mustang Base, 2D Coupe, 3.9 6, Automatic

Diagnostic Trouble Code Definitions

2004 Ford Mustang Base, 2D Coupe, 3.9 6, AutomaticSECTION Diagnostic Trouble Code Definitions

WARNING: This page is about a different car, the 2002 Lincoln Blackwood. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: For Powertrain Control Module (PCM) Diagnostic Trouble Code (DTC) identification and repair, see appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.

AIR SUSPENSION CONTROL MODULE DIAGNOSTIC TROUBLE CODE INDEX

DTC

Description

Perform Test

B1318

Battery Voltage Low

⁽¹⁾

B1342

Air Suspension Control Module Defective

⁽¹⁾

B1485

Brake Pedal Input Circuit Battery Short

⁽²⁾

B1566

Door Ajar Circuit Short To Ground

⁽³⁾

B2140

Initialization Failure (Vehicle Ride Height Not Programmed)

⁽¹⁾

C1439

Vehicle Acceleration EEC-V Circuit Failure

⁽¹⁾

C1724

Air Suspension Height Sensor Power Circuit Failure

⁽¹⁾

C1726

Air Suspension Rear Pneumatic Failure

⁽¹⁾

C1760

Air Suspension Rear Height Sensor High Signal Circuit Failure

⁽¹⁾

C1770

Air Suspension Vent Solenoid Output Circuit Failure

⁽¹⁾

C1790

Air Suspension Left Rear Air Spring Solenoid Output Circuit Failure

⁽¹⁾

C1795

Air Suspension Right Rear Air Spring Solenoid Output Circuit Failure

⁽¹⁾

C1830

Air Suspension Compressor Relay Circuit Failure

⁽¹⁾

C1917

Steering Electronic Variable Orifice (EVO) Out-Of-Range Fault

⁽¹⁾

⁽¹⁾	See appropriate ELECTRONIC article in SUSPENSION.

⁽²⁾	Using NGS tester, perform air suspension control module self-test. Ensure brake pedal is not pressed. If B1485 is retrieved again, repair Brake Pedal Position (BPP) switch circuit. See EXTERIOR LIGHTS in SYSTEM WIRING DIAGRAMS article in ELECTRICAL.

⁽³⁾	See AUTOLAMP SYSTEMS - BLACKWOOD & F150 PICKUP .

4-WHEEL ANTI-LOCK BRAKE SYSTEM MODULE DIAGNOSTIC TROUBLE CODE INDEX

DTC

Description

Perform Test

B1342

Anti-Lock Brake Control Module Defective

⁽¹⁾

C1220

Yellow Anti-Lock Brake System (ABS) Warning Indicator Failure

⁽¹⁾

C1194/C1196

Left Front Dump Valve

⁽¹⁾

C1198/C1200

Left Front Isolation Valve

⁽¹⁾

C1202/C1204

Rear Dump Valve

⁽¹⁾

C1206/C1208

Rear isolation Valve

⁽¹⁾

C1210/C1212

Right Front Dump Valve

⁽¹⁾

C1214/C1216

Right Front Isolation Valve

⁽¹⁾

C1155

Left Front Wheel Speed Sensor (Electrical/Static)

⁽¹⁾

C1158/C1233

Left Front Wheel Speed Sensor (Dynamic)

⁽¹⁾

C1145

Right Front Wheel Speed Sensor (Electrical/Static)

⁽¹⁾

C1148/C1234

Right Front Wheel Speed Sensor (Dynamic)

⁽¹⁾

C1230

Rear Wheel Speed Sensor (Electrical/Static)

⁽¹⁾

C1229/C1237

Rear Wheel Speed Sensor (Dynamic)

⁽¹⁾

C1095/C1096

Pump Motor

⁽¹⁾

C1113/C1115

Internal Power Relay

⁽¹⁾

C1185

Open Internal Power Relay

⁽¹⁾

C1169

Excessive Dump Time

⁽¹⁾

C1184

ABS System Timeout

⁽¹⁾

C1222

Wheel Speed Error (Dynamic)

⁽¹⁾

C1226

Brake Warning Light On

⁽¹⁾

⁽¹⁾	See appropriate ANTI-LOCK article in BRAKES.

DRIVER'S SEAT MODULE DIAGNOSTIC TROUBLE CODE INDEX

DTC

Description

Perform Test

B1342

ECU Defective

⁽¹⁾

B1529

Memory Set Switch Circuit Short To Power

⁽²⁾

B1533

Memory 1 Switch Circuit Short To Power

⁽²⁾

B1537

Memory 2 Switch Circuit Short To Battery

⁽²⁾

B1663

Driver's Seat Front Up/Down Motor Stalled

⁽²⁾

B1664

Driver's Seat Rear Up/Down Motor Stalled

⁽²⁾

B1665

Driver's Seat Forward/Backward Motor Stalled

⁽²⁾

B1667

Driver's Mirror Up/Down Motor Stalled

⁽³⁾

B1668

Driver's Mirror Right/Left Motor Stalled

⁽³⁾

B1669

Passenger's Mirror Up/Down Motor Stalled

⁽³⁾

B1670

Passenger's Mirror Right/Left Motor Stalled

⁽³⁾

B1676

Battery Pack Voltage Out Of Range

⁽⁴⁾

B1697

Driver's Mirror/Passenger's Switch Circuit Short To Power

⁽³⁾

B1711

Driver's Seat Front Up Switch Circuit Short To Power

⁽²⁾

B1715

Driver's Seat Front Down Switch Circuit Short To Power

⁽²⁾

B1719

Driver's Seat Forward Switch Circuit Short To Power

⁽²⁾

B1723

Driver's Seat Rearward Switch Circuit Short To Power

⁽²⁾

B1727

Driver's Seat Rear Up Switch Circuit Short To Power

⁽²⁾

B1731

Driver's Seat Rear Down Switch Circuit Short To Power

⁽²⁾

B1735

Driver's Mirror Vertical Switch Circuit Short To Battery

⁽³⁾

B1739

Driver's Mirror Horizontal Switch Circuit Short To Power

⁽³⁾

B1743

Passenger's Mirror Vertical Switch Circuit Short To Power

⁽³⁾

B1747

Passenger's Mirror Horizontal Switch Circuit Short To Power

⁽³⁾

B1751

Park/Neutral Switch Circuit Short To Power

⁽²⁾

B1950

Seat Rear Up/Down Potentiometer Feedback Circuit Failure

⁽²⁾

B1952

Seat Rear Up/Down Potentiometer Feedback Circuit Short To Power

⁽²⁾

B1954

Seat Front Up/Down Potentiometer Feedback Circuit Failure

⁽²⁾

B1956

Seat Front Up/Down Potentiometer Feedback Circuit Short To Power

⁽²⁾

B1962

Seat Horizontal Forward/Rearward Potentiometer Feedback Circuit Failure

⁽²⁾

B1964

Seat Horizontal Forward/Rearward Potentiometer Feedback Circuit Short To Power

⁽²⁾

B1987

Pedal Forward/Rearward Motor Stalled

⁽⁵⁾

B1988

Pedal Position Forward Switch Circuit Short To Power

⁽⁵⁾

B1989

Pedal Position Rearward Switch Circuit Short To Power

⁽⁵⁾

B1990

Pedal Forward/Rearward Potentiometer Feedback Circuit Failure

⁽⁵⁾

B1991

Pedal Forward/Rearward Potentiometer Feedback Circuit Short To Power

⁽⁵⁾

⁽¹⁾	Using NGS tester, retrieve and document all continuous DTCs. Perform Driver's Seat Module (DSM) self-test. If DTC B1342 is retrieved again, replace DSM.

⁽²⁾	Check seat or memory concern. See POWER SEATS - BLACKWOOD .

⁽³⁾	Check mirror concern. See POWER MIRRORS - BLACKWOOD .

⁽⁴⁾	Check charging system concern. See GENERATORS & REGULATORS article in ELECTRICAL. If charging system is okay, repair power and ground circuits to Driver Seat Module (DSM).

⁽⁵⁾	Repair appropriate circuit as necessary. See ADJUSTABLE PEDALS ASSEMBLY SYSTEMS- BLACKWOOD article.

ELECTRONIC AUTOMATIC TEMPERATURE CONTROL MODULE DIAGNOSTIC TROUBLE CODE INDEX

DTC

Description

Perform Test

B1249

Blend Door Short/Failure

⁽¹⁾

B1251

A/C In-Car Temperature Sensor Open Circuit

⁽¹⁾

B1253

A/C In-Car Temperature Sensor Short To Ground

⁽¹⁾

B1255

A/C Ambient Temperature Sensor Open Circuit

⁽¹⁾

B1257

A/C Ambient Temperature Sensor Short To Ground

⁽¹⁾

B1261

A/C Solar Radiation Sensor Circuit Short To Ground

⁽¹⁾

U1073

SCP Invalid Or Missing Data For Engine Coolant

⁽²⁾

U1341

SCP Invalid Data For Vehicle Speed

⁽²⁾

⁽¹⁾	Repair climate control system concern. See appropriate AUTOMATIC A/C-HEATER SYSTEMS article in AIR CONDITIONING & HEATING.

⁽²⁾	Perform quick test. See QUICK TEST in appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.

GENERIC ELECTRONIC MODULE DIAGNOSTIC TROUBLE CODE INDEX

DTC

Description

Perform Test

B1302

Accessory Delay Relay Coil Circuit Failure

⁽¹⁾

B1304

Accessory Delay Relay Coil Circuit Short To Power

⁽¹⁾

B1313

Battery Saver Relay Coil Circuit Failure

⁽¹⁾

B1315

Battery Saver Relay Coil Circuit Short To Power

⁽¹⁾

B1317

Battery Voltage High

⁽²⁾

B1318

Battery Voltage Low

⁽²⁾

B1322

Driver's Door Ajar Circuit Short To Ground

⁽³⁾

B1323

Door Ajar Lamp Circuit Failure

⁽³⁾

B1325

Door Ajar Lamp Circuit Short To Power

⁽³⁾

B1330

Passenger's Door Ajar Circuit Short To Ground

⁽³⁾

B1334

Decklid Ajar Rear Door Circuit Short To Ground

⁽³⁾

B1338

Door Ajar Right Rear Circuit Short To Ground

⁽³⁾

B1340

Chime Input Request Circuit Short To Ground

⁽⁴⁾

B1342

ECU Defective

⁽⁵⁾

B1345

Heated Backlight Input Circuit Short To Ground

⁽⁶⁾

B1347

Heated Backlight Relay Circuit Failure

⁽⁶⁾

B1349

Heated Backlight Relay Short To Power

⁽⁶⁾

B1352

Ignition Key-In Circuit Failure

⁽⁴⁾

B1355

Ignition RUN Circuit Failure

⁽⁷⁾

B1359

Ignition RUN/ACC Circuit Failure

⁽⁷⁾

B1365

Ignition Start Circuit Short To Battery

⁽⁷⁾

B1371

Illuminated Entry Relay Circuit Failure

⁽⁸⁾

B1373

Illuminated Entry Relay Short To Power

⁽⁸⁾

B1398

Driver's Window One Touch Down Relay Circuit Failure

⁽¹⁾

B1400

Driver's Power Window One Touch Down Relay Circuit Short To Power

⁽¹⁾

B1405

Driver's Power Window Down Circuit Short To Power

⁽¹⁾

B1426

Safety Belt Lamp Circuit Short To Power

⁽⁹⁾

B1428

Safety Belt Lamp Circuit Failure

⁽⁹⁾

B1431

Front Wiper Brake/Run Relay Circuit Failure

⁽¹⁰⁾

B1432

Front Wiper Brake/Run Relay Short To Power

⁽¹⁰⁾

B1434

Front Wiper Hi/Low Speed Relay Circuit Failure

⁽¹⁰⁾

B1436

Front Wiper Hi/Low Speed Relay Circuit Short To Power

⁽¹⁰⁾

B1438

Front Wiper Mode Select Switch Circuit Failure

⁽¹⁰⁾

B1441

Front Wiper Mode Select Switch Input Short To Ground

⁽¹⁰⁾

B1446

Front Wiper Park Sense Circuit Failure

⁽¹⁰⁾

B1450

Front Wiper/Wash Interval Delay Switch Input Circuit Failure

⁽¹⁰⁾

B1453

Front Wiper/Wash Interval Delay Switch Input Short To Ground

⁽¹⁰⁾

B1454

Low Washer Fluid Indicator Circuit Failure

⁽¹⁰⁾

B1456

Low Washer Fluid Indicator Circuit Short To Power

⁽¹⁰⁾

B1458

Front Wiper/Washer Pump Motor Relay Circuit Failure

⁽¹⁰⁾

B1460

Front Wiper/Washer Pump Motor Relay Coil Short To Power

⁽¹⁰⁾

B1462

Safety Belt Switch Circuit Failure

⁽⁴⁾

B1466

Front Wiper Hi/Low Speed Not Switching

⁽¹⁰⁾

B1473

Front Wiper Motor Low Speed Circuit Failure

⁽¹⁰⁾

B1476

Front Wiper Motor High Speed Circuit Failure

⁽¹⁰⁾

B1482

Wiper Washer Fluid Level Sensor Circuit Short To Ground

⁽¹⁰⁾

B1483

Brake Pedal Input Circuit Failure

⁽⁸⁾

B1485

Brake Pedal Input Circuit Short To Power

⁽⁸⁾

B1574

Door Ajar Left Rear Circuit Short To Ground

⁽³⁾

B1577

Lamp Park Input Circuit Short To Power

⁽⁴⁾

B1610

Illuminated Entry Input Short To Ground

⁽³⁾

B1840

Front Wiper Power Circuit Failure

⁽¹⁰⁾

P0500

Vehicle Speed Signal Circuit Failure

⁽¹⁰⁾

⁽¹⁾	Repair power windows. See POWER WINDOWS - BLACKWOOD article.

⁽²⁾	Check charging system concern. See GENERATORS & REGULATORS article in ELECTRICAL. If charging system is okay, repair power and ground circuits at Generic Electronic Module (GEM).

⁽³⁾	Repair door ajar concern. See AUTOLAMP SYSTEMS - BLACKWOOD & F150 PICKUP article.

⁽⁴⁾	Repair warning chime concern. See ANALOG INSTRUMENT PANELS - BLACKWOOD article.

⁽⁵⁾	Using NGS tester, retrieve and document all continuous DTCs. Perform Generic Electronic Module (GEM) self-test. If DTC B1342 is retrieved again, replace GEM.

⁽⁶⁾	Repair defogger concern. See HEATED GLASS - BLACKWOOD article.

⁽⁷⁾	Repair ignition switch or circuit. See STEERING COLUMN SWITCHES - BLACKWOOD article. See POWER DISTRIBUTION in SYSTEM WIRING DIAGRAMS article in ELECTRICAL.

⁽⁸⁾	Repair interior illumination concern. See INTERIOR LIGHTS article.

⁽⁹⁾	Repair instrument cluster concern. See ANALOG INSTRUMENT PANELS - BLACKWOOD article.

⁽¹⁰⁾	Repair wiper/washer system. See WIPER WASHER SYSTEM - BLACKWOOD article.

HYBRID ELECTRONIC CLUSTER DIAGNOSTIC TROUBLE CODE INDEX

DTC

Description

Perform Test

B1202

Fuel Sender Open

⁽¹⁾

B1204

Fuel Sender Short To Ground

⁽¹⁾

B1213

Anti-Theft Number Of Programmed Keys Below Minimum

⁽²⁾

B1232/B2103

Antenna Not Connected Or Damaged Transceiver

⁽²⁾

B1342

ECU Defective

⁽³⁾

B1600

PATS Ignition Key Transponder Signal Not Received

⁽²⁾

B1601

PATS Received Incorrect Key Code (Unprogrammed Encoded Ignition Key)

⁽²⁾

B1602

PATS Received Invalid Key Code Format

⁽²⁾

B1681

PATS Transceiver Signal Not Received

⁽²⁾

B2139

PCM ID Mismatch Between PCM And HEC

⁽²⁾

B2141

NVM Configuration Failure

⁽²⁾

B2143

Odometer NVM Memory Failure

⁽⁴⁾

C1284

Oil Pressure Switch Failure

⁽¹⁾

P1197

SELECT/RESET Switch Circuit Failure

⁽⁴⁾

U1027

SCP Invalid Or Missing Data For Engine RPM

⁽⁵⁾

U1041

SCP Invalid Or Missing Data For Vehicle Speed

⁽⁵⁾

U1073

SCP Invalid Or Missing Data For Engine Coolant

⁽⁵⁾

U1123

SCP Invalid Or Missing Data For Odometer

⁽⁵⁾

U1132

SCP Invalid Or Missing Data For Odometer

⁽⁵⁾

U1147

SCP Invalid Or Missing Data For Vehicle Security

⁽²⁾

⁽¹⁾	Repair instrument cluster concern. See ANALOG INSTRUMENT PANELS - BLACKWOOD article.

⁽²⁾	Repair anti-theft concern. See PASSIVE ANTI-THEFT SYSTEMS - BLACKWOOD & F150 article.

⁽³⁾	Using NGS tester, retrieve and document all continuous DTCs. Perform Hybrid Electronic Cluster (HEC) self-test. If DTC B1342 is retrieved again, replace instrument cluster.

⁽⁴⁾	Replace instrument cluster. Clear DTCs and retest system.

⁽⁵⁾	Perform quick test. See QUICK TEST in appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.

CENTRAL SECURITY MODULE DIAGNOSTIC TROUBLE CODE INDEX

DTC

Description

Perform Test

B1309

Power Door Lock Circuit Short To Ground

⁽¹⁾

B1341

Power Door Unlock Circuit Short To Ground

⁽¹⁾

B1342

ECU Defective

⁽¹⁾

B1485

Brake Pedal Input Circuit Short To Power

⁽¹⁾

B1526

Keyless Entry Short Circuit To Ground

⁽¹⁾

B2276

Less Than Two Transmitters Programmed

⁽¹⁾

B2425

Remote Transmitter Out Of Synchronization

⁽¹⁾

B2477

Module Configuration Failure

⁽¹⁾

⁽¹⁾	Repair keyless entry system concern. See POWER DOOR LOCKS & REMOTE KEYLESS ENTRY SYSTEM article.

RESTRAINT CONTROL MODULE DIAGNOSTIC TROUBLE CODE INDEX

DTC ⁽¹⁾

Description

Perform Test

.....

RCM Disconnected, Inoperative Or Lost/Low Ignition Feed

⁽²⁾

B1342

ECU Defective

⁽³⁾

B1921

RCM Bracket Ground Resistance High

⁽³⁾

C1414

Incorrect Vehicle Identification Code

⁽³⁾

B1887

Driver's Side Air Bag Circuit Shorted To Ground

⁽³⁾

B1916

Driver's Side Air Bag Circuit Shorted To Power Or Ignition

⁽³⁾

B1888

Passenger's Side Air Bag Circuit Shorted To Ground

⁽³⁾

B1925

Passenger's Side Air Bag Circuit Shorted To Power

⁽³⁾

B1932

Driver's Side Air Bag Circuit Resistance High

⁽³⁾

B1933

Passenger's Side Air Bag Circuit Resistance High

⁽³⁾

B1934

Driver's Side Air Bag Circuit Resistance Low

⁽³⁾

B1935

Passenger's Side Air Bag Circuit Resistance Low

⁽³⁾

B2441

Driver Seat Side Impact Sensor Mounting Failure

⁽³⁾

B2440

Passenger Seat Side Impact Sensor Mounting Failure

⁽³⁾

U2017

Driver's Side Crash Sensor Communication Fault

⁽³⁾

U2018

Passenger's Side Crash Sensor Communication Fault

⁽³⁾

B1993

Driver's Side Air Bag Circuit Shorted To Ground

⁽³⁾

B1992

Driver's Side Air Bag Circuit Shorted To Power

⁽³⁾

B1994

Driver's Side Air Bag Circuit Resistance High

⁽³⁾

B1995

Driver's Side Air Bag Circuit Resistance Low

⁽³⁾

B1997

Passenger's Side Air Bag Circuit Shorted To Ground

⁽³⁾

B1996

Passenger's Side Air Bag Circuit Shorted To Power

⁽³⁾

B1998

Passenger's Side Air Bag Circuit Resistance High

⁽³⁾

B1999

Passenger's Side Air Bag Circuit Resistance Low

⁽³⁾

B1892

Air Bag Tone Warning Indicator Circuit Shorted To Ground Or Open

⁽³⁾

B1891

Air Bag Tone Warning Indicator Circuit Shorted To Power

⁽³⁾

B1869

Air Bag Indicator Inoperative

⁽³⁾

B1870

Air Bag Indicator Shorted To Power

⁽³⁾

.....

No Communication With RCM

⁽²⁾

B1885

Driver Pretensioner Circuit Resistance Low

⁽³⁾

B1877

Driver Pretensioner Circuit Resistance High

⁽³⁾

B1881

Passenger Pretensioner Circuit Resistance High

⁽³⁾

B1886

Passenger Pretensioner Circuit Resistance Low

⁽³⁾

B1878

Driver Pretensioner Circuit Shorted To Battery Or Ignition Voltage

⁽³⁾

B1879

Driver Pretensioner Circuit Shorted To Ground

⁽³⁾

B1882

Passenger Pretensioner Circuit Shorted To Battery Or Ignition Voltage

⁽³⁾

B1883

Passenger Pretensioner Circuit Shorted To Ground

⁽³⁾

⁽¹⁾	DTCs are listed in order of importance. Repair DTCs in order listed.

⁽²⁾	This DTC is diagnosed using air bag indicator light. See AIR BAG RESTRAINT SYSTEMS article in RESTRAINTS.

⁽³⁾	Repair supplemental restraint system concern. See AIR BAG RESTRAINT SYSTEMS article in RESTRAINTS.

PARKING AID MODULE DIAGNOSTIC TROUBLE CODE INDEX

DTC

Description

Perform Test

B1299

Power Supply Sensor Short To Ground

⁽¹⁾

B1342

ECU Defective

⁽²⁾

B2373

LED #1 Short To Voltage

⁽¹⁾

B2477

Module Configuration Failure

⁽¹⁾

C1699

Left Rear Sensor Short To Voltage

⁽¹⁾

C1700

Left Rear Sensor Circuit Failure

⁽¹⁾

C1701

Left Rear Sensor Circuit Fault

⁽¹⁾

C1702

Right Rear Sensor Circuit Short To Voltage

⁽¹⁾

C1703

Right Rear Sensor Circuit Failure

⁽¹⁾

C1704

Right Rear Sensor Circuit Fault

⁽¹⁾

C1705

Left Rear Center Sensor Short To Voltage

⁽¹⁾

C1706

Left Rear Center Sensor Circuit Failure

⁽¹⁾

C1707

Left Rear Center Sensor Fault

⁽¹⁾

C1708

Right Rear Center Sensor Short To Voltage

⁽¹⁾

C1709

Right Rear Center Sensor Circuit Failure

⁽¹⁾

C1710

Right Rear Center Sensor Fault

⁽¹⁾

C1742

Rear Sounder Circuit Failure

⁽¹⁾

C1743

Rear Sounder Circuit Short To Voltage

⁽¹⁾

C1748

Switch Input Circuit Short To Ground

⁽¹⁾

⁽¹⁾	Repair system concern. See PARKING AID SYSTEMS - BLACKWOOD under WARNING SYSTEMS for further diagnostics.

⁽²⁾	Using NGS tester, retrieve and document all continuous DTCs. Perform Parking Aid Module (PAM) self-test. If DTC B1342 is retrieved again, replace PAM.

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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.