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Diagnostic Trouble Code Definitions

NOTE: Anti-theft/double locking module may also be referred to as central security module. Hybrid electronic cluster module is built into instrument cluster. Air bag control module may also be referred to as electronic crash sensor module.
AIR BAG CONTROL MODULE DIAGNOSTIC TROUBLE CODE INDEX

DTC (1) Description Perform Test
B1932 Driver's Air Bag Circuit Open (2)
B1933 Passenger's Air Bag Circuit Open (2)
B1934 Driver's Air Bag Inflater Short Circuit (2)
B1935 Passenger's Air Bag Inflater Short Circuit (2)
B1231 Longitudinal Acceleration (Crash Data Stored In NVM) (3)
B1318 Low Battery Voltage (2)
B1342 ECU Defective (4)
B1887 Driver's Air Bag Circuit Short To Ground (2)
B1888 Passenger's Air Bag Circuit Short To Ground (2)
B1993 Driver-Side Side Impact Sensor Circuit Short To Ground (2)
B1997 Passenger-Side Side Impact Sensor Circuit Short To Ground (2)
B2122 Driver-Side Side Satellite Communication Circuit Short To Ground (2)
B2123 Driver-Side Side Satellite Communication Circuit Short To Ground (2)
U2017 Driver-Side Side Crash Sensor Communication Fault (2)
U2018 Passenger-Side Side Crash Sensor Communication Fault (2)
(1) DTCs are listed in order of importance. Repair DTCs in order listed.
(2) Repair supplemental air bag system concern. For information on air bag DIAGNOSIS & TESTING or DISPOSAL PROCEDURES, see lemon-25(R) AIR BAG SERVICE & REPAIR MANUAL, DOMESTIC & IMPORTED MODELS.
(3) Replace air bag control module. See AIR BAG DIAGNOSTIC MONITOR under REMOVAL & INSTALLATION in AIR BAG RESTRAINT SYSTEMS - CONTINENTAL, CONTOUR, COUGAR, ESCORT, MUSTANG, MYSTIQUE, SABLE & TAURUS article.
(4) Using NGS tester, retrieve and document all continuous DTCs. Perform air bag control module self-test. If DTC B1342 is retrieved again, replace air bag control module. See AIR BAG DIAGNOSTIC MONITOR under REMOVAL & INSTALLATION in AIR BAG RESTRAINT SYSTEMS - CONTINENTAL, CONTOUR, COUGAR, ESCORT, MUSTANG, MYSTIQUE, SABLE & TAURUS article.
ANTI-LOCK BRAKE SYSTEM MODULE DIAGNOSTIC TROUBLE CODE INDEX

DTC Description Perform Test
B1318 Battery Voltage Low (1)
B1342 ECU Defective (2)
B1484 Brake Pedal Input Circuit Open (1)
B1596 Brake Pedal Input Circuit Shorted To Voltage (1)
C1095 ABS Hydraulic Pump Motor Circuit Failure (1)
C1145 Right Front ABS Sensor Input Circuit Failure (1)
C1155 Left Front ABS Sensor Input Circuit Failure (1)
C1165 Right Rear ABS Sensor Input Circuit Failure (1)
C1175 Left Rear ABS Sensor Input Circuit Failure (1)
C1222 Wheel Mismatched (1)
C1233 Left Front ABS Sensor Input Signal Missing (1)
C1234 Right Front ABS Sensor Input Signal Missing (1)
C1235 Right Rear ABS Sensor Input Signal Missing (1)
C1236 Left Rear ABS Sensor Input Signal Missing (1)
C1266 ABS Valve Power Circuit Failure (3)
U1009 (4) SCP Invalid/Missing Data For Engine Torque (5)
U1027 (4) SCP Invalid/Missing Data For Engine RPM (5)
U1262 (4) SCP Communication Fault (6)
(1) Repair anti-lock brake system concern. See appropriate ANTI-LOCK article in BRAKES.
(2) Using NGS tester, retrieve and document all continuous DTCs. Perform ABS self-test. If DTC B1342 is retrieved again, replace ABS module.
(3) Replace hydraulic control unit. Using NGS tester, perform ABS module self-test after replacement.
(4) Traction control only.
(5) Cause by Powertrain Control Module (PCM). Using NGS tester, perform PCM self-test and perform appropriate test in accordance with DTC retrieved. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
(6) Repair module communication concern. See DATA LINK DIAGNOSTIC TEST  under SELF-DIAGNOSTIC SYSTEM.
ANTI-THEFT/DOUBLE LOCKING MODULE DIAGNOSTIC TROUBLE CODE INDEX

DTC Description Perform Test
B1298 Interior Sensor Power Short To Voltage (1)
B1299 Interior Sensor Power Short To Ground (1)
B1300 Power Door Lock Circuit Failure (2)
B1309 Power Door Lock Circuit Short To Ground (3)
B1311 Power Door Unlock Circuit Failure (2)
B1320 Driver's Door Ajar Circuit Open (4)
B1328 Passenger's Door Ajar Circuit Open (4)
B1332 Decklid/Rear Door Ajar Circuit Open (4)
B1341 Power Door Unlock Circuit Short To Ground (3)
B1342 ECU Defective (5)
B1520 Hood Switch Circuit Open (1)
B1551 Decklid Release Circuit Failure (4)
B1553 Decklid Release Circuit Short To Voltage (4)
B1554 Decklid Release Circuit Short To Ground (4)
B1755 Hazard Flash Output Circuit Short To Voltage (1)
B1756 Hazard Flash Output Circuit Short To Ground (1)
B2108 Trunk Key Cylinder Switch Failure (1)
B2112 Driver's Door Set Switch Stuck Failure (1)
B2116 Driver's Door Reset Switch Stuck Failure (6)
B2150 Power Supply 1 Circuit Short To Ground (1)
B2151 Power Supply 2 Circuit Short To Ground (1)
B2153 Rear Echo Sensor Circuit Failure (1)
B2154 Front Echo Sensor Circuit Failure (1)
B2156 Rear Doppler Sensor Circuit Failure (1)
B2157 Rear Doppler Sensor Circuit Failure (1)
B2477 Module Configuration Failure (7)
B2478 Anti-Theft Input Signal Stuck Failure (1)
B2494 Horn/Panic Output Driver Short To Voltage (8)
B2496 Horn/Panic Output Driver Short To Ground (8)
B2550 Dome Light Output Circuit Short To Voltage (4)
B2555 Dome Light Output Circuit Short To Ground (4)
(1) See ACTIVE ANTI-THEFT SYSTEMS - COUGAR article for testing procedures.
(2) Repair appropriate circuit as necessary. See appropriate POWER DOOR LOCKS & REMOTE KEYLESS ENTRY SYSTEMS - COUGAR article.
(3) This DTC can be set because of many different reasons. If this DTC is set, repair appropriate system by symptom.
(4) Repair appropriate circuit as necessary. See ILLUMINATION/INTERIOR LIGHTS article.
(5) Using NGS tester, retrieve and document all continuous DTCs. Perform anti-theft/double locking module self-test. If DTC B1342 is retrieved again, replace anti-theft/double locking module.
(6) See PASSIVE ANTI-THEFT SYSTEMS - COUGAR article for testing procedures.
(7) Anti-theft/double locking module requires programming. See ACTIVE ANTI-THEFT SYSTEMS - COUGAR article.
(8) If remote keyless entry system is operating properly and remote transmitters are programmed, replace anti-theft/double locking module.
HYBRID ELECTRONIC CLUSTER MODULE DIAGNOSTIC TROUBLE CODE INDEX

DTC Description Perform Test
B1201 Fuel Sender Circuit Failure (1)
B1204 Fuel Sender Short To Ground (1)
B1257 Climate Control (1)
B1317 Battery Voltage High (1)
B1318 Battery Voltage Low (1)
B1342 ECU Defective (2)
B1359 Ignition Switch RUN/ACC Circuit Failure (1)
P0115 Engine Coolant Temperature Circuit Malfunction (3)
(1) See ANALOG INSTRUMENT PANELS - COUGAR article for testing procedures.
(2) Using NGS tester, retrieve and document all continuous DTCs. Perform Hybrid Electronic Cluster (HEC) module self-test. If DTC B1342 is retrieved again, replace HEC module.
(3) Repair engine coolant temperature sensor circuit. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
POWERTRAIN CONTROL MODULE DIAGNOSTIC TROUBLE CODE INDEX

DTC (1) Description Perform Test
B1213 Anti-Theft Number Of Programmed Keys Is Below Minimum (2)
B1232 Or B2103 Antenna Not Connected (2)
B1600 No Key Code Received, Damaged Encoded Ignition Key Or Use Of Non-PATS Key (2)
B1601 Unprogrammed Encoded Ignition Key (Unprogrammed Ignition Key) (2)
B1602 Invalid Key Code Format From Ignition Key Transponder (Partial Key Read) (2)
B1681 Transceiver Defective Or Not Connected (2)
(1) Codes list in this table are only Powertrain Control Module (PCM) body codes related to passive anti-theft system. For a list of all "P" or powertrain codes, see appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
(2) See PASSIVE ANTI-THEFT SYSTEMS - COUGAR article for testing procedures.
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