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Diagnostic Trouble Code Definitions

DIAGNOSTIC TROUBLE CODE DEFINITIONS

DTC Description Perform Test
001 Seat Belt Indicator Light Circuit Shorted To Battery Voltage Or Ground DTC 001 
002 Protected Battery Feed To Courtesy Lights Shorted To Battery Voltage Or Ground DTC 002 
003 Courtesy Lights Ground Circuit Shorted To Battery Voltage DTC 003 
004 Retained Accessory Power Control Circuit Shorted To Battery Voltage Or Ground DTC 004 
006 Theft Deterrent Relay Control Circuit Shorted To Battery Voltage Or Ground DTC 006 
007 Horn Relay Control Circuit Shorted To Battery Voltage Or Ground DTC 007 
008 Keyless Entry Serial Data Circuit Open, Shorted To Battery Voltage Or Ground DTC 008 
B0016 Instrument Panel Module Deployment Loop Low Resistance (1)
B0017 Instrument Panel Module Deployment Loop High Resistance (1)
B0018 Instrument Panel Module High Control Input Malfunction (1)
B0022 Steering Wheel Module Deployment Loop Low Resistance (1)
B0024 Steering Wheel Module High Control Input Malfunction (1)
B0026 Steering Wheel Module Deployment Loop High Resistance (1)
B0051 Sufficient Force Frontal Collision Detected (1)
B0053 Deployment Loop Malfunction Exists (1)
B0686 Theft Deterrent Control Module Security Indicator Light Control Circuit Current High (2)
B0687 Theft Deterrent Control Module Security Indicator Light Control Circuit Current Low (2)
B0688 Theft Deterrent Control Module Security Indicator Light Circuit High (2)
B0689 Theft Deterrent Control Module Security Indicator Light Circuit Low (2)
B1000 Sensing & Diagnostic Module Internal Fault DTC B1000 
B2752 Horn Relay Coil Circuit Low (3)
B2753 Horn Relay Coil Circuit High (3)
B2955 Transponder Value Missing (2)
B2960 Key Code Does Not Match Stored Code (2)
C0035-C0051 Wheel Speed Sensor Circuit Shorted to Voltage Or Open (4)
C0060-C0095 EBCM Solenoid Circuit Malfunction (4)
C0110 Pump Motor Circuit Malfunction (4)
C0121 Valve Relay Circuit Malfunction (4)
C0141-C0156 TCS Solenoid Circuit Malfunction (4)
C0161 ABS/TCS Brake Switch Circuit Malfunction (4)
C0235-C0237 TCS RPM Signal Circuit Malfunction (4)
C0240 PCM Traction Control Not Allowed (4)
C0241 Or P1571 PCM Indicated Requested Torque Malfunction (4)
C0244 Or P1689 PWM Delivered Torque Malfunction (4)
C0245 Wheel Speed Sensor Frequency Error (4)
C0252 Active Brake Control Sensors Uncorrelated (4)
C0450 Variable Effort Steering Actuator Circuit Malfunction (4)
C0550 ECU Malfunction (4)
C0896 Device Voltage Range/Performance (4)
P0462 Fuel Level Sensor Circuit Failure (5)
P0463 Fuel Level Sensor Circuit High Resistance (5)
P0656 Improper Fuel Gauge Signal Circuit Voltage (5)
P1554 Cruise Control Feedback Circuit (6)
P1585 Cruise Inhibit Output Circuit (6)
P1626 Invalid Theft Deterrent Control Module Password (2)
P1629 Invalid Theft Deterrent Control Module Password (2)
P1630 PCM Learn Mode Time Exceeded (2)
P1631 Invalid Password Detected (2)
P1653 Improper Low Oil Level Signal Circuit Voltage (5)
P1663 Improper Change Oil Soon Indicator Circuit Voltage (5)
PXXXX Powertrain Control Module Fault (7)
U1000 & U1255 Class Data Link Malfunction DTC U1000 & U1255 
U1016 Loss Of PCM Communications DTC U1001-U1254 
U1088 Loss Of SIR/SDM Communications DTC U1001-U1254 
U1192 Loss Of VTD Communications DTC U1001-U1254 
U1300 Class 2 Data Link Signal Voltage Low DTC U1300 
U1301 Class 2 Data Link Signal Voltage High DTC U1301 
U1304 Loss Of UART Communications DTC U1304 
U1500 Lost Communications Between VCU & VIU DTC U1500 
(1) For information on air bag DIAGNOSIS & TESTING or DISPOSAL PROCEDURES, see lemon-25(R) AIR BAG SERVICE & REPAIR MANUAL, DOMESTIC & IMPORTED MODELS.
(2) See appropriate ANTI-THEFT SYSTEMS article.
(3) See appropriate STEERING COLUMN SWITCHES article.
(4) See appropriate ANTI-LOCK article in BRAKES.
(5) See appropriate ANALOG INSTRUMENT PANELS article.
(6) See appropriate CRUISE CONTROL SYSTEMS article.
(7) For testing procedures for "P" codes not listed in this table, see appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.