Diagnostic Trouble Code Definitions

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

ELECTRONIC CRASH SENSOR MODULE DTC INDEX ⁽¹⁾

DTC ⁽²⁾

Description

Perform Test

B1342

ECU Defective

⁽³⁾

B1231

ECS Crash Data Memory Full

⁽³⁾

B1921

ECS Bracket High Resistance/Incorrect Mounting

⁽³⁾

B1318

Low Battery Voltage

⁽³⁾

C1414

Incorrect Module Design Level

⁽³⁾

B1887

Driver's Air Bag Circuit Short To Ground

⁽³⁾

B1916

Driver's Air Bag Circuit Short To Power

⁽³⁾

B1888

Passenger's Air Bag Circuit Short To Ground

⁽³⁾

B1925

Passenger's Air Bag Circuit Short To Power

⁽³⁾

B1932

Driver's Air Bag Resistance High

⁽³⁾

B1933

Passenger's Air Bag Resistance High

⁽³⁾

B1934

Driver's Air Bag Circuit Resistance Low

⁽³⁾

B1935

Passenger's Air Bag Circuit Resistance Low

⁽³⁾

B1941

Unexpected Feature Present

⁽³⁾

B1901

Unexpected Feature Present

⁽³⁾

B1871

Passenger's Air Bag Deactivation Switch Fault

⁽³⁾

B1885

Unexpected Feature Present

⁽³⁾

B1886

Unexpected Feature Present

⁽³⁾

B1884

Passenger's Air Bag Deactivation Switch Warning Light Inoperative

⁽³⁾

B1890

Passenger's Air Bag Deactivation Switch Warning Light Short To Power

⁽³⁾

B1892

Air Bag tone Warning Indicator Circuit Short To Ground Or Open

⁽³⁾

B1891

Air Bag Tone Warning Indicator Circuit Short To Power

⁽³⁾

B2141

Non-Volatile Memory Configuration Failure

⁽³⁾

B1869

Air Bag Indicator Inoperative

⁽³⁾

B1870

Air Bag Indicator Shorted To Power

⁽³⁾

⁽¹⁾	Electronic crash sensor module may also be referred to as air bag diagnostic module, air bag diagnostic monitor or restraints control module.

⁽²⁾	DTCs are listed in order of importance. Repair DTCs in order listed.

⁽³⁾	Repair supplemental restraint system concern. For information on air bag DIAGNOSIS & TESTING, see lemon-25® AIR BAG SERVICE & REPAIR MANUAL, DOMESTIC & IMPORTED MODELS.

ANTI-LOCK BRAKE CONTROL MODULE DTC INDEX ⁽¹⁾

DTC

Description

Perform Test

B1342

ECU Defective

⁽²⁾

B2141/B2477

NV Memory Configuration Failure

⁽²⁾

C1095/C1096

Pump Motor

⁽²⁾

C1115

Internal Power Relay

⁽²⁾

C1145 ⁽³⁾

Right Front Wheel Speed Sensor (Electrical/Static)

⁽²⁾

C1148/C1234 ⁽³⁾

Right Front Wheel Speed Sensor (Dynamic)

⁽²⁾

C1155 ⁽³⁾

Left Front Wheel Speed Sensor (Electrical/Static)

⁽²⁾

C1158/C1233 ⁽³⁾

Left Front Wheel Speed Sensor (Dynamic)

⁽²⁾

C1169

Excessive Dump Time

⁽²⁾

C1184

ABS System Time-Out

⁽²⁾

C1185

Open Internal Power Relay

⁽²⁾

C1194/C1196 ⁽³⁾

Left Front Dump Valve

⁽²⁾

C1198/C1200 ⁽³⁾

Left Front Isolation Valve

⁽²⁾

C1202/C1204

Rear Dump Valve

⁽²⁾

C1206/C1208

Rear Isolation Valve

⁽²⁾

C1210/C1212 ⁽³⁾

Right Front Dump Valve

⁽²⁾

C1214/C1216 ⁽³⁾

Right Front Isolation Valve

⁽²⁾

C1222

Wheel Speed Error (Dynamic)

⁽²⁾

C1226

Brake Warning Light Output Short To Ground

⁽²⁾

C1229/C1237

Rear Wheel Speed Sensor (Dynamic)

⁽²⁾

C1230

Rear Wheel Speed Sensor (Electrical/Static)

⁽²⁾

⁽¹⁾	Rear wheel anti-lock brake and 4-wheel anti-lock brake systems have same DTCs except where noted.

⁽²⁾	See appropriate ANTI-LOCK article in BRAKES.

⁽³⁾	DTC for 4-wheel anti-lock brake system only.

GENERIC ELECTRONIC MODULE DTC TEST INDEX

DTC

Description

Perform Test

B1217

Horn Relay Coil Circuit Failure

⁽¹⁾

B1218

Horn Relay Coil Circuit Short To Power

⁽¹⁾

B1240

Wiper/Washer Rear Pump Relay Circuit Failure

⁽²⁾

B1241

Wiper/Washer Rear Pump Relay Circuit Short To Power

⁽²⁾

B1243

One-Touch Down Window Switch Circuit Short To Power

⁽³⁾

B1300

Power Door Lock Circuit Failure

⁽¹⁾

B1302

Accessory Delay Relay Coil Circuit Failure

⁽³⁾

B1304

Accessory Delay Relay Coil Circuit Short To Power

⁽³⁾

B1310

Power Door Unlock Circuit Failure

⁽¹⁾

B1317

Battery Voltage High

⁽⁴⁾

B1318

Battery Voltage Low

⁽⁴⁾

B1322

Driver's Door Ajar Circuit Short To Ground

⁽⁵⁾

B1323

Door Ajar Light Circuit Failure

⁽⁶⁾

B1325

Door Ajar Light Circuit Short To Power

⁽⁶⁾

B1330

Passenger's Door Ajar Circuit Short To Ground

⁽⁵⁾

B1334

Decklid Ajar Circuit Short To Ground

⁽⁵⁾

B1340

Chime Input Request Circuit Short To Ground

⁽⁷⁾

B1342

ECU Defective

⁽⁸⁾

B1345

Heated Backlite Input Circuit Short To Ground

⁽⁹⁾

B1347

Heated Backlite Relay Circuit Failure

⁽⁹⁾

B1349

Heated Backlite Relay Short To Power

⁽⁹⁾

B1352

Ignition Key-In Circuit Failure

⁽⁷⁾

B1355

Ignition RUN Circuit Failure

⁽¹⁰⁾

B1359

Ignition RUN/ACC Circuit Failure

⁽¹⁰⁾

B1371

Illuminated Entry Relay Circuit Failure

⁽⁵⁾

B1373

Illuminated Entry Relay Short To Power

⁽⁵⁾

B1396

Power Door Lock Circuit Short To Power

⁽¹⁾

B1397

Power Door Unlock Circuit Short To Power

⁽¹⁾

B1398

Driver's Window One-Touch Down Relay Circuit Failure

⁽³⁾

B1400

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

⁽³⁾

B1405

Driver's Power Window Down Circuit Short To Power

⁽³⁾

B1410

Driver's Power Window Motor Circuit Failure

⁽³⁾

B1426

Safety Belt Light Circuit Short To Power

⁽⁸⁾

B1428

Safety Belt Light Circuit Failure

⁽⁸⁾

B1431

Wiper Run/Park Relay Circuit Failure

⁽²⁾

B1432

Wiper Run/Park Relay Short To Power

⁽²⁾

B1434

Wiper Hi/Low Speed Relay Circuit Failure

⁽²⁾

B1436

Wiper Hi/Low Speed Relay Circuit Short To Power

⁽²⁾

B1438

Wiper Mode Select Switch Circuit Failure

⁽²⁾

B1441

Wiper Mode Select Switch Circuit Short To Ground

⁽²⁾

B1446

Wiper Park Sense Circuit Failure

⁽²⁾

B1450

Wiper/Wash Delay Switch Circuit Failure

⁽²⁾

B1453

Wiper/Wash Delay Switch Circuit Short To Ground

⁽²⁾

B1458

Washer Pump Motor Relay Coil Circuit Failure

⁽²⁾

B1460

Washer Pump Motor Relay Coil Short To Power

⁽²⁾

B1462

Seat Belt Switch Circuit Failure

⁽⁷⁾

B1473

Wiper Motor Low Speed Circuit Failure

⁽²⁾

B1475

Accessory Delay Relay Contact Short To Power

⁽³⁾

B1476

Wiper Motor High Speed Circuit Failure

⁽²⁾

B1483

Brake Pedal Input Circuit Failure

⁽¹¹⁾

B1485

Brake Pedal Input Circuit Short To Power

⁽¹¹⁾

B1526

Keyless Entry Circuit Short To Ground

⁽¹⁾

B1566

Door Ajar Circuit Short To Ground

⁽⁶⁾

B1577

Park Light Input Circuit Short To Power

⁽⁷⁾

B1611

Rear Wiper Mode Select Switch Circuit Failure

⁽²⁾

B1614

Rear Wiper Mode Select Switch Circuit Short To Ground

⁽²⁾

B1820

Rear Wiper Motor Up Relay Circuit Short To Power

⁽²⁾

B1839

Rear Wiper Motor Circuit Failure

⁽²⁾

B1982

Driver's Door Unlock Relay Circuit Failure

⁽¹⁾

B1983

Driver's Door Unlock Relay Circuit Short To Power

⁽¹⁾

B2132

Dimmer Switch Short To Ground

⁽⁵⁾

B2357

Driver's Window Down Current Sense (Low) Circuit Failure

⁽³⁾

B2425

Remote Keyless Entry Out Of Synchronization

⁽¹⁾

B2477

Module Configuration Failure

⁽¹²⁾

C1125

Brake Fluid Level Sensor Input Circuit Failure

⁽⁶⁾

C1182

Park Light Flash Relay Circuit Failure

⁽¹⁾

C1183

Park Light Flash Relay Circuit Short To Power

⁽¹⁾

C1189

Brake Fluid Level Sensor Input Circuit Short To ground

⁽⁶⁾

C1223

Brake Light Warning Output Circuit Failure

⁽⁶⁾

C1225

Brake Light Warning Output Circuit short To Power

⁽⁶⁾

C1446

Park Brake Switch Circuit Failure

⁽⁶⁾

C1728

Unable To Transition Between 4H & 2H

⁽¹¹⁾

C1729

Unable To Transition Between 4H & 4L

⁽¹¹⁾

P0500

Vehicle Speed Signal Circuit Failure

⁽²⁾

P1804

4-Wheel Drive High Indicator Circuit Failure

⁽¹¹⁾

P1806

4-Wheel Drive High Indicator Short To Power

⁽¹¹⁾

P1808

4-Wheel Drive Low Indicator Circuit Failure

⁽¹¹⁾

P1810

4-Wheel Drive Low Indicator Short To Power

⁽¹¹⁾

P1812

4-Wheel Drive Mode Select Circuit Failure

⁽¹¹⁾

P1815

4-Wheel Drive Mode Select Short Circuit To Ground

⁽¹¹⁾

P1819

Transmission Neutral Safety Switch Short To Ground

⁽¹¹⁾

P1820

Transmission Transfer Case Clockwise Shift Relay Coil Circuit Failure

⁽¹¹⁾

P1822

Transmission Transfer Case Clockwise Shift Relay Coil Short To Power

⁽¹¹⁾

P1828

Transmission Transfer Case Counterclockwise Shift Relay Coil Circuit Failure

⁽¹¹⁾

P1830

Transmission Transfer Case Counterclockwise Shift Relay Coil Short To Power

⁽¹¹⁾

P1832

Transmission Transfer Case Differential Lockup Solenoid Circuit Failure

⁽¹¹⁾

P1834

Transmission Transfer Case Differential Lockup Solenoid Short To Power

⁽¹¹⁾

P1865

Transmission Transfer Case Contact Plate Power Short To Ground

⁽¹¹⁾

P1866

Transmission Transfer Case System Concern

⁽¹¹⁾

P1867

Transmission Transfer Case Contact Plate General Circuit Failure

⁽¹¹⁾

P1876

Transmission Transfer Case 2-Wheel Drive Solenoid Circuit Failure

⁽¹¹⁾

P1877

Transmission Transfer Case 2-Wheel Drive Solenoid Circuit Short To Power

⁽¹¹⁾

⁽¹⁾	See appropriate REMOTE KEYLESS ENTRY SYSTEMS article.

⁽²⁾	See appropriate WIPER/WASHER SYSTEMS article.

⁽³⁾	See appropriate POWER WINDOWS article.

⁽⁴⁾	Repair charging system concern. See appropriate GENERATORS & REGULATORS article in STARTING & CHARGING SYSTEMS.

⁽⁵⁾	Repair interior illumination concern. See appropriate wiring diagram in ILLUMINATION/INTERIOR LIGHTS article.

⁽⁶⁾	See appropriate INSTRUMENT PANELS article.

⁽⁷⁾	Repair warning chime concern. See appropriate wiring diagram in WARNING SYSTEMS article.

⁽⁸⁾	Using NGS tester, clear DTCs. Retrieve DTCs. If B1342 is retrieved again, replace GEM. See GENERIC ELECTRONIC MODULE (GEM) under REMOVAL & INSTALLATION in appropriate ANALOG INSTRUMENT PANELS article.

⁽⁹⁾	Repair defogger concern. See REAR WINDOW DEFOGGERS & HEATED MIRRORS - EXCURSION article.

⁽¹⁰⁾	See appropriate STEERING COLUMN SWITCHES article.

⁽¹¹⁾	Repair transfer case electronic controls concern. See NEW VENTURE 271 - ELECTRONIC CONTROLS article in TRANSFER CASES.

⁽¹²⁾	Check module configuration. Refer to NGS Ford Service Function card to verify proper module configuration. Clear DTCs. Retrieve DTCs. If DTC B2477 is retrieved again, replace GEM. See REMOVAL & INSTALLATION in appropriate INSTRUMENT PANELS articl

OVERHEAD TRIP COMPUTER DTC INDEX

DTC

Description

Perform Test

B1201

Fuel Level Sensor Circuit Open Or Short To Ground

⁽¹⁾

B1203

Fuel Level Sensor Circuit Short To Power

⁽¹⁾

B1208

Message Center MODE Or E/M Button Stuck Closed

⁽²⁾

B1255

A/C Ambient Temperature Sensor Open Circuit

⁽³⁾

B1342

ECU Defective

⁽¹⁾

B2141/B2477

Message Center Module Configuration Failure

⁽⁴⁾

B2148

Pulse Width Modulated Signal Open Or Short To Ground

⁽¹⁾

C1123

Vehicle Speed Signal Short To Power

⁽¹⁾

P0500

Vehicle Speed Signal Input Malfunction

⁽¹⁾

U2015

Powertrain Control Module (PCM) Signal Open Or Short To Power

⁽¹⁾

U2016

PCM Short To Ground

⁽¹⁾

⁽¹⁾	Repair OTC system concern. See appropriate wiring diagram in OVERHEAD CONSOLES article.

⁽²⁾	Check for proper assembly of outer/inner message center console.

⁽³⁾	Repair climate control system concern. See appropriate MANUAL or AUTOMATIC A/C-HEATER SYSTEMS article in AIR CONDITIONING & HEATING.

⁽⁴⁾	Check module configuration. Refer to NGS tester Ford Service Function card to verify proper module configuration. Clear DTCs. Retrieve DTCs. If DTC B2141 is present again, replace GEM. See REMOVAL & INSTALLATION in appropriate INSTRUMENT PANELS article.