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Diagnostic Trouble Code (DTC) Definitions

WARNING: This page is about a different car, the 1997 Mercury Mountaineer and 1997 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
AIR BAG DIAGNOSTIC MONITOR DTC DEFINITIONS

DTC Source Module (1) Description
B1342 AIR BAG ECU Defective
B1867 AIR BAG Lost Or Low Battery Voltage
B1869 AIR BAG Inoperative Air Bag Indicator
B1913 AIR BAG Air Bag Circuit Shorted To Voltage
B1914 AIR BAG Air Bag Sensor Shorted To Ground
B1921 AIR BAG Faulty Air Bag Monitor Ground/ Improper Mounting
B1922 AIR BAG Safing Sensor Output Circuit Shorted to Voltage
B1923 AIR BAG Memory Clear Circuit Improperly Grounded
B1924 AIR BAG System Disarm Failure/Internal Air Bag Monitor Fault
B1932 AIR BAG High Resistance Or Open In Driver's Side Air Bag Circuit
B1933 AIR BAG High Resistance Or Open In Passenger's Side Air Bag Circuit
B1934 AIR BAG Low Resistance Or Short In Driver's Side Air Bag Circuit
B1935 AIR BAG Low Resistance Or Short In Passenger's Side Air Bag Circuit
B1941 AIR BAG Right Crash Sensor Feed/Return Circuit Open
B1942 AIR BAG Left Crash Sensor Feed/Return Return Circuit Open
B1944 AIR BAG Faulty Right Crash Sensor Ground/Improper Mounting
B1945 AIR BAG Faulty Left Crash Sensor Ground/Improper Mounting
(1) See AIR BAG RESTRAINT SYSTEM article for testing procedures.
ANTI-LOCK BRAKE SYSTEM (ABS) CONTROL MODULE DTC DEFINITIONS

DTC Source Module (1) Description
B1317 ABS Battery Voltage High
B1318 ABS Battery Voltage Low
B1432 ABS ECU Defective
C1095 ABS Pump Motor Running But Not Triggered
C1096 ABS Pump Motor Triggered But Did Not Run
C1101 ABS Intermittent Valve Failure
C1102 ABS "G" Sensor Circuit Failure
C1145 ABS Right Front Wheel Speed Sensor Input Circuit Failure
C1155 ABS Left Front Wheel Speed Sensor Input Circuit Failure
C1148 ABS Right Front Wheel Speed Sensor Coherency Fault
C1158 ABS Left Front Wheel Speed Sensor Coherency Fault
C1185 ABS Main Relay Output Circuit Failure
C1194 ABS Left Front Dump Valve Coil Circuit Failure
C1198 ABS Left Front ISO Valve Coil Circuit Failure
C1202 ABS Rear Dump Valve Coil Circuit Failure
C1206 ABS Rear ISO Valve Coil Circuit Failure
C1210 ABS Right Front Dump Valve Coil Circuit Failure
C1214 ABS Right Front ISO Valve Coil Circuit Failure
C1229 ABS Rear Wheel Speed Sensor Coherency Fault
C1230 ABS Rear Wheel Speed Sensor Input Circuit Failure
C1233 ABS Left Front Wheel Speed Sensor Input Missing (Long Term)
C1234 ABS Right Front Wheel Speed Sensor Input Missing (Long Term)
C1237 ABS Rear Wheel Speed Sensor Input Missing Long Term)
C1258 ABS Left Front Wheel Speed Sensor Wheel Speed Comparison Fault
C1259 ABS Right Front Wheel Speed Sensor Wheel Speed Comparison Fault
C1260 ABS Rear Wheel Speed Sensor Wheel Speed Comparison Fault
(1) See BRAKES - ANTI-LOCK article in BRAKES section for testing procedures.
ELECTRONIC AUTOMATIC TEMPERATURE CONTROL (EATC) MODULE DTC DEFINITIONS

DTC Source Module (1) Description
B1249 EATC Blend Door Failure
B1251 EATC In-Car Temperature Sensor Circuit Open
B1253 EATC In-Car Temperature Sensor Circuit Short
B1254 EATC Ambient Temperature Sensor Circuit Failure
B1255 EATC Ambient Temperature Sensor Circuit Open
B1257 EATC Ambient Temperature Sensor Circuit Short
B1260 EATC Sunload Sensor Circuit Short To Battery
B1261 EATC Sunload Sensor Circuit Short To Ground
B1342 EATC ECU Internal Failure Engine Coolant
U1073 EATC Engine Coolant Temperature Invalid
U1341 EATC Vehicle Speed Missing Message Or
(1) See A/C-HEATER SYSTEM - AUTOMATIC article in AIR CONDITIONING & HEAT section.
GENERIC ELECTRONIC MODULE (GEM) DTC DEFINITIONS

DTC Source Module Description
B1302 GEM (1) Accessory Delay Relay Coil Circuit Open Or Short To Ground
B1304 GEM (1) Accessory Delay Relay Coil Circuit Open Or Short To Battery
B1314 GEM (2) Battery Saver Relay Coil Circuit Open
B1315 GEM (2) Battery Saver Relay Coil Circuit Short To Battery
B1316 GEM (2) Battery Saver Relay Coil Circuit Short To Ground
B1317 GEM (3) Battery Voltage High
B1318 GEM (3) Battery Voltage Low
B1322 GEM (2)(4) Left Front Door Open Warning Light Switch Circuit Short To Ground
B1323 GEM (4) Door Ajar Light Output Circuit Failure
B1325 GEM (4) Door Ajar Light Output Short To Battery
B1330 GEM (2)(4) Right Front Door Open Warning Light Switch Circuit Short To Ground
B1334 GEM (2)(4) Deck Lid Door Open Warning Light Switch Circuit Short To Ground
B1338 GEM (2)(4) Right Rear Door Open Warning Light Switch Circuit Short To Ground
B1340 GEM (4) Chime Input Request Circuit Short To Ground
B1342 GEM (5) ECU Defective
B1345 GEM (6) Rear Window Defogger Input Circuit Short To Ground
B1347 GEM (6) Rear Window Defogger Relay Circuit Failure
B1349 GEM (6) Rear Window Defogger Relay Circuit Short To Battery
B1352 GEM (4)(7) Ignition Key-In Circuit Failure
B1355 GEM (7) Ignition Run Circuit Failure
B1359 GEM (7) Ignition Run/ACC Circuit Failure
B1365 GEM (7) Ignition Start Circuit Short To Battery
B1371 GEM (2) Interior Light Relay Circuit Failure
B1373 GEM (2) Interior Light Relay Coil Circuit Short To Battery
B1398 GEM (1) Power Window One-Touch Window Relay Circuit Failure
B1400 GEM (1) Power Window One-Touch Window Relay Coil Circuit Short To Battery
B1405 GEM (1) Power Window Left Down Switch Input Circuit Short To Battery
B1408 GEM (1) Power Window Left Up Switch Input Circuit Short To Battery
B1410 GEM (1) Power Window Left Motor Circuit Failure
B1426 GEM (4) Seat Belt Light Output Circuit Short To Battery
B1428 GEM (4) Seat Belt Light Output Circuit Failure
B1431 GEM (8) Wiper Run/Park Relay Coil Open Or Short To Ground
B1432 GEM (8) Wiper Run/Park Relay Coil Short To Battery
B1434 GEM (8) Wiper Hi/Low Relay Coil Open Or Short To Ground
B1436 GEM (8) Wiper Hi/Low Relay Circuit Short To Battery
B1438 GEM (8) Wiper/Washer Switch Input Circuit Failure
B1441 GEM (8) Wiper/Washer Switch Input Short To Ground
B1445 GEM (2) Interior Light Handle Switch Circuit Short To Ground
B1446 GEM (8) Wiper Park Sense Circuit Open
B1450 GEM (8) Wiper Interval Delay Switch Input Circuit Failure
B1453 GEM (8) Wiper Interval Delay Switch Input Short To Ground
B1458 GEM (8) Washer Pump Relay Coil Open Or Short To Ground
B1460 GEM (8) Washer Pump Relay Coil Short To Battery
B1462 GEM (4) Seat Belt Switch Circuit Failure
B1466 GEM (8) Wiper Speed Not Switching
B1467 GEM (8) Wiper Motor Hi/Low Speed Circuit Short To Battery
B1473 GEM (8) Wiper Motor Low Speed Circuit Failure
B1475 GEM (8) Delayed Accessory Relay Contacts Short To Battery
B1476 GEM (8) Wiper Motor High Speed Circuit Failure
B1483 GEM (9) Brake Pedal Input Circuit Failure
B1485 GEM (9) Brake Pedal Input Circuit Short To Battery
B1574 GEM (2)(4) Left Rear Door Open Warning Light Switch Circuit Short To Ground
B1577 GEM (10) Park/Headlight Light Input Circuit Short To Battery
B1610 GEM (2)(11) Illuminated Entry Input Request Circuit Short To Ground
B1611 GEM (8) Rear Wiper Mode Select Switch Circuit Failure
B1614 GEM (8) Rear Wiper Mode Select Switch Circuit Short To Ground Fault
B1619 GEM (8) Rear Wiper Low Limit Input Circuit Failure
B1622 GEM (8) Rear Wiper Low Limit Input Circuit Short To Ground
B1814 GEM (8) Rear Wiper Motor Down Relay Circuit Failure
B1816 GEM (8) Rear Wiper Motor Down Relay Circuit Short To Battery
B1818 GEM (8) Rear Wiper Motor Up Relay Circuit Failure
B1822 GEM (8) Rear Wiper Park Sense Input Circuit Failure
B1825 GEM (8) Rear Wiper Park Sense Input Circuit Short To Battery
B1826 GEM (8) Rear Wiper High Limit Input Circuit Failure
B1829 GEM (8) Rear Wiper High Limit Input Circuit Short To Battery
B1833 GEM (11) Door Unlock Disarm Switch Circuit Short To Ground
B1834 GEM (11) Door Unlock Disarm Output Circuit Failure
B1836 GEM (11) Door Unlock Disarm Output Circuit Short To Battery
B1838 GEM (2) Battery Saver Power Relay Circuit Failure
B1839 GEM (8) Rear Wiper Motor Circuit Failure
B1840 GEM (8) Wiper Power Circuit Open
P0500 GEM (9) Vehicle Speed Signal Circuit Failure
(1) See POWER WINDOWS article for testing procedures.
(2) Test wiring for opens and/or shorts and repair as necessary. See wiring diagram in SYSTEM WIRING DIAGRAMS article in WIRING DIAGRAMS section.
(3) See GENERATOR article in ELECTRICAL section for testing procedures.
(4) Test wiring for opens and/or shorts and repair as necessary. See wiring diagram in SYSTEM WIRING DIAGRAMS article in WIRING DIAGRAMS section.
(5) Replace Generic Electronic Module (GEM).
(6) See DEFOGGER - REAR WINDOW article for testing procedures.
(7) See STEERING COLUMN SWITCHES article for testing procedures.
(8) See WIPER/WASHER SYSTEM article for testing procedures.
(9) See TRANSFER CASE article in TRANSFER CASES section for testing procedures.
(10) Test wiring for opens and/or shorts and repair as necessary. See wiring diagram in SYSTEM WIRING DIAGRAMS article in WIRING DIAGRAMS section.
(11) See KEYLESS ENTRY SYSTEM - REMOTE article for testing procedures.
REMOTE ANTI-THEFT PERSONALITY (RAP) MODULE DTC DEFINITIONS

DTC Source Module Description
B1309 RAP (1) Power Door Lock Circuit Shorted To Ground
B1341 RAP (1) Power Door Unlock Circuit Shorted To Ground
B1485 RAP (1) Brake Pedal Input Circuit Shorted To Battery
B1522 RAP (2) Hood Switch Circuit Shorted To Ground
B1526 RAP (1) Keypad Switch Circuit Shorted To Ground
B1562 RAP (2) Door Lock Cylinder Circuit Shorted To Ground
B1629 RAP (1) PRNDL Reverse Input Shorted To Battery
B1845 RAP (2) Ignition Lock Anti-Theft Switch Circuit Failure
(1) See KEYLESS ENTRY SYSTEM - REMOTE article for testing procedures.
(2) See ANTI-THEFT SYSTEM article for testing procedures.
AUTOMATIC RIDE CONTROL (ARC) MODULE DTC DEFINITIONS

DTC Source Module (1) Description
B1318 ARC Battery Voltage Low
B1342 ARC ECU Internal Fault
B1485 ARC Brakelight Switch Input Short To Battery
B1565 ARC Door Ajar Input Short To Battery
C1439 ARC Acceleration Signal Input Circuit Fault
C1724 ARC High Power Input Circuit Fault
C1725 ARC Front Pneumatic Fault
C1726 ARC Rear Pneumatic Fault
C1756 ARC Front Height Sensor Circuit Fault
C1760 ARC Rear Height Sensor Circuit Fault
C1770 ARC Vent Solenoid Circuit Fault
C1830 ARC Air Compressor Relay Circuit Fault
C1845 ARC Front Fill Solenoid Circuit Fault
C1865 ARC Rear Fill Solenoid Circuit Fault
C1869 ARC Rear Gate Solenoid Circuit Fault
C1901 ARC Right Rear Shock Absorber Circuit Fault
C1905 ARC Left Rear Shock Absorber Circuit Fault
C1909 ARC Right Front Shock Absorber Circuit Fault
C1909 ARC Left Front Shock Absorber Circuit Fault
P1807 ARC 4 X 4 High Range Input Short To Ground
P1808 ARC 4 X 4 Low Range Input Short To Ground
(1) See SUSPENSION - ELECTRONIC article in SUSPENSION section for testing procedures.
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