Diagnostic Trouble Code (DTC) Definitions

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

AIR SUSPENSION CONTROL MODULE DTC 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

⁽¹⁾

B1749

Park/Neutral Switch Circuit Failure

⁽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⁾

C1725

Air Suspension Front Pneumatic Failure

⁽³⁾

C1726

Air Suspension Rear Pneumatic Failure

⁽¹⁾

C1756

Air Suspension Front Height Sensor High Signal Circuit Failure

⁽³⁾

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⁾

C1845

Air Suspension Front Inflator Solenoid Output Circuit Failure

⁽³⁾

C1865

Air Suspension Rear Inflator Solenoid Output Circuit Failure

⁽³⁾

C1869

Air Suspension Gate Solenoid Output Circuit Failure

⁽³⁾

C1917

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

⁽⁴⁾

P1807

4x4 High Indicator Circuit Short To Ground

⁽³⁾

P1808

4x4 Low Indicator Circuit Short To Ground

⁽³⁾

⁽¹⁾	See appropriate ELECTRONIC article in SUSPENSION.

⁽²⁾	Using NGS tester, perform air suspension control module self-test. Make sure brake pedal is not pressed. If B1485 is retrieved again, repair Brake Pedal Position (BPP) switch circuit. See WIRING DIAGRAMS in appropriate CRUISE CONTROL SYSTEMS article.

⁽³⁾	Applies only to 4-Wheel Air Suspension system. See appropriate ELECTRONIC article in SUSPENSION.

⁽⁴⁾	See appropriate ELECTRONIC article in STEERING.

ANTI-LOCK BRAKE SYSTEM (ABS) MODULE DTC INDEX

DTC

Description

Perform Test

B1342

ECU Defective

⁽¹⁾

C1095/C1096

Pump Motor

⁽¹⁾

C1113/C1115

Internal Power Relay

⁽¹⁾

C1145

Right Front Wheel Speed Sensor (Electrical/Static)

⁽¹⁾

C1148/C1234

Right Front Wheel Speed Sensor (Dynamic)

⁽¹⁾

C1155

Left Front Wheel Speed Sensor (Electrical/Static)

⁽¹⁾

C1158/C1233

Left Front Wheel Speed Sensor (Dynamic)

⁽¹⁾

C1169

Excessive Dump Time

⁽¹⁾

C1184

ABS System Timeout

⁽¹⁾

C1185

Open Internal Power Relay

⁽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⁾

C1220

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

⁽¹⁾

C1222

Wheel Speed Error (Dynamic)

⁽¹⁾

C1229/C1237

Rear Wheel Speed Sensor (Dynamic)

⁽¹⁾

C1230

Rear Wheel Speed Sensor (Electrical/Static)

⁽¹⁾

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

AUDIO CONTROL MODULE (ACM) DTC INDEX

DTC

Description

Perform Test

B1342

ECU Defective

⁽¹⁾

B2401

Audio Tape Deck Mechanism Fault

⁽²⁾

B2402

Audio CD/DJ Thermal Shutdown Fault

⁽³⁾

B2403

Audio CD/DJ Internal Fault

⁽³⁾

B2404

Audio Steering Wheel Switch Circuit Fault

⁽³⁾

B2405

Audio Single-Disc CD Player Thermal Shutdown Fault

⁽³⁾

B2406

Audio Single-Disc CD Player Internal Fault

⁽³⁾

U2003

Audio Compact Disk/Disk Jockey Not Responding

⁽³⁾

U2005

Audio Rear Integrated Control Panel Unit Not Responding

⁽⁴⁾

U2008

Audio Phone Not Responding

⁽⁵⁾

U2014

Audio Subwoofer Unit Not Responding

⁽³⁾

⁽¹⁾	Using NGS tester, retrieve and document all continuous DTCs. Perform Audio Control Module (ACM) self-test. If DTC B1342 is retrieved again, replace ACM.

⁽²⁾	Verify no tape is in Audio Control Module (ACM). Using NGS tester, retrieve and document all continuous DTCs. Perform ACM self-test. If B2401 is retrieved again, replace or repair ACM.

⁽³⁾	Repair audio system concern.

⁽⁴⁾	RICP is not present, disconnected or inoperative. If vehicle is not equipped with RICP/RSC, code is not applicable.

⁽⁵⁾	Repair cellular phone system concern.

DRIVER'S SEAT MODULE (DSM) DTC TEST 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⁾⁽³⁾

B1664

Driver's Seat Rear Up/Down Motor Stalled

⁽²⁾⁽³⁾

B1665

Driver's Seat Forward/Backward Motor Stalled

⁽²⁾⁽³⁾

B1667

Driver's Mirror Up/Down Motor Stalled

⁽⁴⁾

B1668

Driver's Mirror Right/Left Motor Stalled

⁽⁴⁾

B1669

Passenger's Mirror Up/Down Motor Stalled

⁽⁴⁾

B1670

Passenger's Mirror Right/Left Motor Stalled

⁽⁴⁾

B1676

Battery Pack Voltage Out Of Range

⁽⁵⁾

B1697

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

⁽⁶⁾

B1711

Driver's Seat Front Up Switch Circuit Short To Power

⁽³⁾

B1715

Driver's Seat Front Down Switch Circuit Short To Power

⁽³⁾

B1719

Driver's Seat Forward Switch Circuit Short To Power

⁽³⁾

B1723

Driver's Seat Rearward Switch Circuit Short To Power

⁽³⁾

B1727

Driver's Seat Rear Up Switch Circuit Short To Power

⁽³⁾

B1731

Driver's Seat Rear Down Switch Circuit Short To Power

⁽³⁾

B1735

Driver's Mirror Vertical Switch Circuit Short To Battery

⁽⁶⁾

B1739

Driver's Mirror Horizontal Switch circuit Short To Power

⁽⁶⁾

B1743

Passenger's Mirror Vertical Switch Circuit Short To Power

⁽⁶⁾

B1747

Passenger's Mirror Horizontal Switch Circuit Short To Power

⁽⁶⁾

B1751

Park/Neutral Switch Circuit Short To Power

⁽⁷⁾

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

⁽⁸⁾

B1988

Pedal Position Forward Switch Circuit Short To Power

⁽⁸⁾

B1989

Pedal Position Rearward Switch Circuit Short To Power

⁽⁸⁾

B1990

Pedal Forward/Rearward Potentiometer Feedback Circuit Failure

⁽⁸⁾

B1991

Pedal Forward/Rearward Potentiometer Feedback Circuit Short To Power

⁽⁸⁾

⁽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⁾	Perform TEST G: MEMORY SEAT DOES NOT OPERATE FROM MEMORY SWITCH under SYSTEM TESTS in POWER SEATS - EXPEDITION, PICKUPS & NAVIGATOR article.

⁽³⁾	Perform TEST F: MEMORY SEAT INOPERATIVE under SYSTEM TESTS in POWER SEATS - EXPEDITION, PICKUPS & NAVIGATOR article.

⁽⁴⁾	Perform TEST A: MEMORY MIRROR INOPERATIVE or TEST B: MEMORY MIRROR INOPERATIVE AT MEMORY SET SWITCH under SYSTEM TESTS in POWER MEMORY MIRRORS - NAVIGATOR article.

⁽⁵⁾	Check charging system concern. See GENERATORS - ECONOLINE, EXPEDITION, EXPLORER (4.0L OHV), PICKUPS (GASOLINE), NAVIGATOR & RANGER article in STARTING & CHARGING SYSTEMS. If charging system is okay, repair power and ground circuits to Driver Seat Module (DSM).

⁽⁶⁾	Perform TEST A: MEMORY MIRROR INOPERATIVE under SYSTEM TESTS in POWER MEMORY MIRRORS - NAVIGATOR article.

⁽⁷⁾	Perform TEST J: NO COMMUNICATION WITH DSM under SYSTEM TESTS in POWER SEATS - EXPEDITION, PICKUPS & NAVIGATOR article.

⁽⁸⁾	Repair appropriate circuit as necessary. See appropriate wiring diagram in ADJUSTABLE PEDAL ASSEMBLY SYSTEMS article.

ELECTRONIC AUTOMATIC TEMPERATURE CONTROL (EATC) MODULE DTC 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.

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

GENERIC ELECTRONIC MODULE (GEM) DTC TEST INDEX

DTC

Description

Perform Test

B1240

Rear Washer Pump Relay Coil Circuit Failure

⁽¹⁾

B1241

Rear Washer Pump Relay Coil Short To Power

⁽¹⁾

B1302

Accessory Delay Relay Coil Circuit Failure

⁽²⁾

B1304

Accessory Delay Relay Coil Circuit Short To Power

⁽²⁾

B1313

Battery Saver Relay Coil Circuit Failure

⁽²⁾

B1315

Battery Saver Relay Coil Circuit Short To Power

⁽²⁾

B1317

Battery Voltage High

⁽³⁾

B1318

Battery Voltage Low

⁽³⁾

B1322

Driver's Door Ajar Circuit Short To Ground

⁽⁴⁾

B1323

Door Ajar Circuit Failure

⁽⁵⁾

B1325

Door Ajar Lamp Circuit Short To Power

⁽⁶⁾

B1330

Passenger's Door Ajar Circuit Short To Ground

⁽⁴⁾

B1334

Decklid Ajar Rear Door Circuit Short To Ground

⁽⁴⁾

B1338

Door Ajar Right Rear Circuit Short To Ground

⁽⁴⁾

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⁾

B1365

Ignition Start Circuit Short To Battery

⁽¹¹⁾

B1371

Illuminated Entry Relay Circuit Failure

⁽⁴⁾

B1373

Illuminated Entry Relay Short To Power

⁽⁴⁾

B1398

Driver's Window One Touch Down Relay Circuit Failure

⁽¹²⁾

B1400

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

⁽¹²⁾

B1405

Driver's Power Window Down Circuit Short To Power

⁽¹³⁾

B1410

Driver's Power Window Motor Circuit Failure

⁽¹³⁾

B1426

Safety Belt Lamp Circuit Short To Power

⁽¹⁴⁾

B1428

Safety Belt Lamp Circuit Failure

⁽¹⁵⁾

B1431

Front Wiper Brake/Run Relay Circuit Failure

⁽¹⁶⁾

B1432

Front Wiper Brake/Run Relay Short To Power

⁽¹⁶⁾

B1434

Front Wiper Hi/Low Speed Relay Circuit Failure

⁽¹⁷⁾

B1436

Front Wiper Hi/Low Speed Relay Circuit Short To Power

⁽¹⁷⁾

B1438

Front Wiper Mode Select Switch Circuit Failure

⁽¹⁶⁾

B1441

Front Wiper Mode Select Switch Input Short To Ground

⁽¹⁶⁾

B1446

Front Wiper Park Sense Circuit Failure

⁽¹⁸⁾

B1450

Front Wiper/Wash Interval Delay Switch Input Circuit Failure

⁽¹⁶⁾

B1453

Front Wiper/Wash Interval Delay Switch Input Short To Ground

⁽¹⁶⁾

B1454

Low Washer Fluid Indicator Circuit Failure

⁽¹⁹⁾

B1456

Low Washer Fluid Indicator Circuit Short To Power

⁽¹⁹⁾

B1458

Front Wiper/Washer Pump Motor Relay Circuit Failure

⁽²⁰⁾

B1460

Front Wiper/Washer Pump Motor Relay Coil Short To Power

⁽²⁰⁾

B1462

Safety Belt Switch Circuit Failure

⁽⁷⁾

B1466

Front Wiper Hi/Low Speed Not Switching

⁽¹⁷⁾

B1473

Front Wiper Motor Low Speed Circuit Failure

⁽¹⁷⁾

B1476

Front Wiper Motor High Speed Circuit Failure

⁽¹⁷⁾

B1482

Wiper Washer Fluid Level Sensor Circuit Short To Ground

⁽¹⁹⁾

B1483

Brake Pedal Input Circuit Failure

⁽²¹⁾

B1485

Brake Pedal Input Circuit Short To Power

⁽²¹⁾

B1574

Door Ajar Left Rear Circuit Short To Ground

⁽⁴⁾

B1577

Lamp Park Input Circuit Short To Power

⁽⁷⁾

B1610

Illuminated Entry Input Short To Ground

⁽⁴⁾

B1611

Rear Wiper Mode Select Switch Circuit Failure

⁽²²⁾

B1614

Rear Wiper Mode Select Switch Circuit Short To Ground

⁽²³⁾

B1814

Rear Wiper Motor Down Relay Circuit Failure

⁽²²⁾

B1816

Rear Wiper Motor Down Relay Coil Circuit Short To Power

⁽²²⁾

B1818

Rear Wiper Motor Up Relay Coil Circuit Failure

⁽²²⁾

B1820

Rear Wiper Motor Up Relay Circuit Short To Power

⁽²²⁾

B1839

Rear Wiper Motor Circuit Failure

⁽²⁴⁾

B1840

Front Wiper Power Circuit Failure

⁽¹⁶⁾

B1894

Rear Wiper Motor Speed Sense Circuit Failure

⁽²²⁾

B2105

Throttle Position Input Out Of Range Low

⁽²¹⁾

B2106

Throttle Position Input Out Of Range High

⁽²¹⁾

C1107

ABS Function Enabled Input Circuit Failure

⁽²¹⁾

P0500

Vehicle Speed Signal Circuit Failure

⁽²¹⁾⁽²⁵⁾

P1804

4-Wheel Drive High Indicator Circuit Failure

⁽²⁶⁾

P1806

4-Wheel Drive High Indicator Short To Power

⁽²⁶⁾

P1812

Transmission 4-Wheel Drive Mode Select Circuit Failure

⁽²¹⁾

P1815

Transmission 4-Wheel Drive Mode Select Short Circuit To Ground

⁽²¹⁾

P1820

Transmission Transfer Case Clockwise Shift Relay Coil Circuit Failure

⁽²¹⁾

P1822

Transmission Transfer Case Clockwise Shift Relay Coil Short To Power

⁽²¹⁾

P1824

Transmission 4-Wheel Drive Clutch Relay Circuit Failure

⁽²¹⁾

P1826

Transmission 4-Wheel Drive Low Clutch Relay Short To Power

⁽²¹⁾

P1828

Transmission Transfer Case Counter Clockwise Shift Relay Coil Circuit Failure

⁽²¹⁾

P1830

Transmission Transfer Case Counter Clockwise Shift Relay Coil Short To Power

⁽²¹⁾

P1836

Transmission Transfer Case Front Shaft Speed Sensor Circuit Failure

⁽²¹⁾

P1837

Transmission Transfer Case Rear Shaft Speed Sensor Circuit Failure

⁽²¹⁾

P1838

Transmission Transfer Case Shift Motor Circuit Failure

⁽²¹⁾

P1846

Transmission Transfer Case Contact Plate "A" Circuit Failure

⁽²¹⁾

P1850

Transmission Transfer Case Contact Plate "B" Circuit Failure

⁽²¹⁾

P1854

Transmission Transfer Case Contact Plate "C" Circuit Failure

⁽²¹⁾

P1858

Transmission Transfer Case Contact Plate "D" Circuit Failure

⁽²¹⁾

P1866

Transmission Transfer Case System Concern - Servicing Required

⁽²¹⁾

P1867

Transmission Transfer Case Contact Plate General Circuit Failure

⁽²¹⁾

P1874

Transmission Automatic Hall Effect Sensor Power Circuit Failure

⁽²¹⁾

P1875

Transmission Automatic Hall Effect Sensor Power Circuit Short To Power

⁽²¹⁾

P1891

Transmission Transfer Case Contact Plate Ground Return Open Circuit

⁽²¹⁾

P1892

Transmission Automatic 4-Wheel Drive 4X4 Mechanical Lock Output Circuit Failure

⁽²¹⁾

P1893

Transmission Automatic 4-Wheel Drive 4X4 Mechanical Lock Output Short To Power

⁽²¹⁾

⁽¹⁾	Perform TEST J: REAR WASHER PUMP INOPERATIVE under SYSTEM TESTS in WIPER/WASHER SYSTEMS - EXPEDITION & NAVIGATOR article.

⁽²⁾	Perform TEST B: ALL POWER WINDOWS INOPERATIVE under SYSTEM TESTS in POWER WINDOWS - EXPEDITION & NAVIGATOR article.

⁽³⁾	Check charging system concern. See GENERATORS - ECONOLINE, EXPEDITION, EXPLORER (4.0L OHV), PICKUPS (GASOLINE), NAVIGATOR & RANGER article in STARTING & CHARGING SYSTEMS. If charging system is okay, repair power and ground circuits at Generic Electronic Module (GEM).

⁽⁴⁾	Repair interior illumination concern. See appropriate wiring diagram in ILLUMINATION/INTERIOR LIGHTS article.

⁽⁵⁾	Perform TEST J: DOOR AJAR LAMP INOPERATIVE or TEST K: DOOR AJAR LAMP DOES NOT OPERATE CORRECTLY under SYSTEM TESTS in ANALOG INSTRUMENT PANELS - EXPEDITION, F150 & F250 LIGHT-DUTY PICKUPS, & NAVIGATOR article.

⁽⁶⁾	Perform TEST J: DOOR AJAR LAMP INOPERATIVE under SYSTEM TESTS in ANALOG INSTRUMENT PANELS - EXPEDITION, F150 & F250 LIGHT-DUTY PICKUPS, & NAVIGATOR article.

⁽⁷⁾	Repair warning chime concern.

⁽⁸⁾	Using NGS tester, retrieve and document all continuous DTCs. Perform Generic Electronic Module (GEM) self-test. If DTC B1342 is retrieved again, replace GEM.

⁽⁹⁾	Repair defogger concern. See appropriate wiring diagram in REAR WINDOW DEFOGGERS article.

⁽¹⁰⁾	Perform TEST E: NO POWER IN RUN POSITION under SYSTEM TESTS in STEERING COLUMN SWITCHES - EXPEDITION & NAVIGATOR article.

⁽¹¹⁾	Perform TEST F: NO POWER IN START POSITION under SYSTEM TESTS in STEERING COLUMN SWITCHES - EXPEDITION & NAVIGATOR article.

⁽¹²⁾	Perform TEST D: ONE TOUCH DOWN FEATURE INOPERATIVE under SYSTEM TESTS in POWER WINDOWS - EXPEDITION & NAVIGATOR article.

⁽¹³⁾	Perform TEST C: SINGLE WINDOW INOPERATIVE under SYSTEM TESTS in POWER WINDOWS - EXPEDITION & NAVIGATOR article.

⁽¹⁴⁾	Perform TEST H: SAFETY BELT INDICATOR LAMP INOPERATIVE under SYSTEM TESTS in ANALOG INSTRUMENT PANELS - EXPEDITION, F150 & F250 LIGHT-DUTY PICKUPS, & NAVIGATOR article.

⁽¹⁵⁾	Perform TEST H: SAFETY BELT INDICATOR LAMP INOPERATIVE or TEST I: SAFETY BELT INDICATOR LAMP DOES NOT OPERATE CORRECTLY under SYSTEM TESTS in ANALOG INSTRUMENT PANELS - EXPEDITION, F150 & F250 LIGHT-DUTY PICKUPS, & NAVIGATOR article.

⁽¹⁶⁾	Perform TEST A: FRONT WIPERS INOPERATIVE under SYSTEM TESTS in WIPER/WASHER SYSTEMS - EXPEDITION & NAVIGATOR article.

⁽¹⁷⁾	Perform TEST C: FRONT WIPERS OPERATE AT INTERVAL SETTING, BUT INOPERATIVE AT HIGH &/OR LOW SPEED under SYSTEM TESTS in WIPER/WASHER SYSTEMS - EXPEDITION & NAVIGATOR.

⁽¹⁸⁾	Perform TEST D: FRONT WIPERS INOPERATIVE AT INTERVAL SETTING, BUT OPERATE AT HIGH & LOW SPEED under SYSTEM TESTS in WIPER/WASHER SYSTEMS - EXPEDITION & NAVIGATOR.

⁽¹⁹⁾	Perform TEST L: LOW WASHER FLUID INDICATOR DOES NOT OPERATE PROPERLY under SYSTEM TESTS in WIPER/WASHER SYSTEMS - EXPEDITION & NAVIGATOR.

⁽²⁰⁾	Perform TEST E: FRONT WASHER PUMP INOPERATIVE under SYSTEM TESTS in WIPER/WASHER SYSTEMS - EXPEDITION & NAVIGATOR.

⁽²¹⁾	Repair transfer case electronic controls concern. See appropriate BORG-WARNER - ELECTRONIC CONTROLS article in TRANSFER CASES.

⁽²²⁾	Perform TEST G: REAR WIPERS INOPERATIVE under SYSTEM TESTS in WIPER/WASHER SYSTEMS - EXPEDITION & NAVIGATOR article.

⁽²³⁾	Perform TEST K: REAR WIPER STAYS ON CONTINUOUSLY under SYSTEM TESTS in WIPER/WASHER SYSTEMS - EXPEDITION & NAVIGATOR article.

⁽²⁴⁾	Perform TEST H: REAR WIPER WILL NOT PARK PROPERLY under SYSTEM TESTS in WIPER/WASHER SYSTEMS - EXPEDITION & NAVIGATOR article.

⁽²⁵⁾	Perform TEST F: FRONT WIPER SPEED DEPENDENT INTERVAL MODE NOT OPERATING PROPERLY under SYSTEM TESTS in WIPER/WASHER SYSTEMS - EXPEDITION & NAVIGATOR article.

⁽²⁶⁾	Perform TEST N: 4X4 INDICATOR LAMP INOPERATIVE OR ALWAYS ON under SYSTEM TESTS in ANALOG INSTRUMENT PANELS - EXPEDITION, F150 & F250 LIGHT-DUTY PICKUPS, & NAVIGATOR article.

HYBRID ELECTRONIC CLUSTER (HEC) DTC TEST INDEX

DTC

Description

Perform Test

B1201

Fuel Sender Circuit Failure

⁽¹⁾

B1202

Fuel Sender Open

⁽¹⁾

B1204

Fuel Sender Short To Ground

⁽¹⁾

B1213

Anti-Theft Number Of Programmed Keys Below Minimum

⁽²⁾

B1232

Antenna Not Connected Or Damaged Transceiver

⁽³⁾

B1317

Battery Voltage High

⁽⁴⁾

B1318

Battery Voltage Low

⁽⁴⁾

B1342

ECU Defective

⁽⁵⁾

B1356

Ignition RUN Circuit Open

⁽⁶⁾

B1364

Ignition START Circuit Open

⁽⁶⁾

B1600

PATS Ignition Key Transponder Signal Not Received

⁽⁷⁾

B1601

PATS Received Incorrect Key Code (Unprogrammed Encoded Ignition Key)

⁽⁸⁾

B1602

PATS Received Invalid Key Code Format

⁽⁹⁾

B1681

PATS Transceiver Signal Not Received

⁽¹⁰⁾

B2103

Antenna Not Connected Or Defective Transceiver

⁽³⁾

B2139

PCM ID Mismatch Between PCM And HEC

⁽¹¹⁾

B2141

NVM Configuration Failure

⁽¹²⁾

B2143

Odometer NVM Memory Failure

⁽¹³⁾

C1284

Oil Pressure Switch Failure

⁽¹⁾

P1197

SELECT/RESET Switch Circuit Failure

⁽¹³⁾

U1011

SCP Invalid Or Missing Data For Engine Air Intake

⁽¹⁴⁾

U1027

SCP Invalid Or Missing Data For Engine RPM

⁽¹⁴⁾

U1041

SCP Invalid Or Missing Data For Vehicle Speed

⁽¹⁴⁾

U1073

SCP Invalid Or Missing Data For Engine Coolant

⁽¹⁴⁾

U1123

SCP Invalid Or Missing Data For Odometer

⁽¹⁴⁾

U1131

SCP Invalid Or Missing Data For Fuel System

⁽¹⁴⁾

U1147

SCP Invalid Or Missing Data For Vehicle Security For Vehicle Security

⁽¹⁵⁾

U1148

SCP Invalid Or Missing Data for audio Control

⁽¹⁴⁾

U1262

Missing SCP Message

⁽¹⁶⁾

⁽¹⁾	Perform TEST C: FUEL GAUGE INACCURATE under SYSTEM TESTS in ANALOG INSTRUMENT PANELS - EXPEDITION, F150 & F250 LIGHT-DUTY PICKUPS, & NAVIGATOR article.

⁽²⁾	Perform TEST C: ANTI-THEFT NUMBER OF PROGRAMMED KEYS IS BELOW MINIMUM under SYSTEM TESTS in PASSIVE ANTI-THEFT SYSTEMS - EXPEDITION & NAVIGATOR article.

⁽³⁾	Perform TEST D: ANTENNA NOT CONNECTED under SYSTEM TESTS in PASSIVE ANTI-THEFT SYSTEMS - EXPEDITION & NAVIGATOR article.

⁽⁴⁾	Repair charging system concern. See GENERATORS - ECONOLINE, EXPEDITION, EXPLORER (4.0L OHV), PICKUPS (GASOLINE), NAVIGATOR & RANGER article in STARTING & CHARGING SYSTEMS. If charging system is okay, repair power and ground circuits to Hybrid Electronic Cluster (HEC).

⁽⁵⁾	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.

⁽⁶⁾	Repair ignition circuit concern. See STEERING COLUMN SWITCHES - EXPEDITION & NAVIGATOR article. See appropriate wiring diagram in POWER DISTRIBUTION article in WIRING DIAGRAMS.

⁽⁷⁾	Perform TEST E: IGNITION KEY TRANSPONDER SIGNAL NOT RECEIVED under SYSTEM TESTS in PASSIVE ANTI-THEFT SYSTEMS - EXPEDITION & NAVIGATOR article.

⁽⁸⁾	Perform TEST F: INCORRECT KEY CODE FROM IGNITION KEY TRANSPONDER under SYSTEM TESTS in PASSIVE ANTI-THEFT SYSTEMS - EXPEDITION & NAVIGATOR article.

⁽⁹⁾	Perform TEST G: INVALID FORMAT KEY CODE FROM IGNITION KEY TRANSPONDER under SYSTEM TESTS in PASSIVE ANTI-THEFT SYSTEMS - EXPEDITION & NAVIGATOR article.

⁽¹⁰⁾	Perform TEST H: TRANSCEIVER MODULE SIGNAL NOT RECEIVED under SYSTEM TESTS in PASSIVE ANTI-THEFT SYSTEMS - EXPEDITION & NAVIGATOR article.

⁽¹¹⁾	Perform TEST I: PCM ID DOES NOT MATCH INSTRUMENT CLUSTER ID under SYSTEM TESTS in PASSIVE ANTI-THEFT SYSTEMS - EXPEDITION & NAVIGATOR article.

⁽¹²⁾	Perform TEST J: CONFIGURATION FAILURE, NO PCM ID EXCHANGED under SYSTEM TESTS in PASSIVE ANTI-THEFT SYSTEMS - EXPEDITION & NAVIGATOR article.

⁽¹³⁾	Replace instrument cluster. Clear DTCs and retest system.

⁽¹⁴⁾	Using NGS tester, perform Powertrain Control Module (PCM) self-test.

⁽¹⁵⁾	Perform TEST K: INVALID OR MISSING VEHICLE SECURITY DATA under SYSTEM TESTS in PASSIVE ANTI-THEFT SYSTEMS - EXPEDITION & NAVIGATOR article.

⁽¹⁶⁾	Start diagnostics at INSPECTION & VERIFICATION .

REMOTE ANTI-THEFT PERSONALITY (RAP) MODULE DTC INDEX

DTC

Description

Perform Test

B1309

Power Door Lock Circuit Short To Ground

⁽¹⁾

B1341

Power Door Unlock Circuit Short To Ground

⁽¹⁾

B1485

Brake Pedal Input Circuit Short To Power

⁽¹⁾

B1629

PRNDL Reverse Input Short To Power

⁽¹⁾

B2425

Remote Transmitter Out Of Sync

⁽¹⁾

⁽¹⁾	Repair keyless entry system concern. See appropriate wiring diagram in REMOTE KEYLESS ENTRY article.

RESTRAINT CONTROL MODULE (RCM) DTC INDEX

DTC ⁽¹⁾

Description

Perform Test

B1342

ECU Defective

⁽²⁾

B1231

RCM Crash Data Memory Full

⁽²⁾

B1921

RCM Bracket Ground Resistance High

⁽²⁾

C1414

Incorrect Vehicle Identification Code

⁽²⁾

B1887

Driver's Air Bag Circuit Shorted To Ground

⁽²⁾

B1916

Driver's Air Bag Circuit Shorted To Power Or Ignition

⁽²⁾

B1888

Passenger's Air Bag Circuit Shorted To Ground

⁽²⁾

B1925

Passenger's Air Bag Circuit Shorted To Power

⁽²⁾

B1932

Driver's Air Bag Circuit Resistance High

⁽²⁾

B1933

Passenger's Air Bag Circuit Resistance High

⁽²⁾

B1934

Driver's Air Bag Circuit Resistance Low

⁽²⁾

B1935

Passenger's Air Bag Circuit Resistance Low

⁽²⁾

B1901

External Crash Sensor Shorted To Ground

⁽²⁾

B1941

External Crash Sensor Open Circuit Or Shorted To Power

⁽²⁾

B1892

Air Bag tone Warning Indicator Circuit Shorted To Ground Or Open

⁽²⁾

B1891

Air Bag Tone Warning Indicator Circuit Shorted To Power

⁽²⁾

B1869

Air Bag Indicator Inoperative

⁽²⁾

B1870

Air Bag Indicator Shorted To Power

⁽²⁾

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

⁽²⁾	Repair supplemental restraint system concern. See appropriate DIAGNOSIS & TESTING article in appropriate lemon-25® AIR BAG SERVICE & REPAIR MANUAL, DOMESTIC & IMPORTED MODELS.