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Diagnostic Trouble Code Definitions

WARNING: This page is about a different car, the 2002 Chevrolet Monte Carlo, 2002 Chevrolet Impala, 2001 Chevrolet Monte Carlo, and 2001 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC TROUBLE CODE DEFINITIONS

DTC Description (1)Perform Test
B0012 Right Instrument Panel Air Bag Stage 2 Deployment Loop Resistance Low (2)
B0013 Right Instrument Panel Air Bag Stage 2 Deployment Loop Voltage Low (2)
B0014 Right Instrument Panel Air Bag Stage 2 Deployment Loop Voltage High (2)
B0016 Right Instrument Panel Air Bag Stage One Deployment Loop Resistance Low (2)
B0017 Right Instrument Panel Air Bag Stage One Deployment Loop Voltage Low (2)
B0018 Right Instrument Panel Air Bag Stage One Deployment Loop Voltage High (2)
B0022 Steering Wheel Air Bag Stage One Deployment Loop Resistance Low (2)
B0024 Steering Wheel Air Bag Stage One Deployment Loop Voltage High (2)
B0026 Steering Wheel Air Bag Stage One Deployment Loop Voltage Low (2)
B0034 Left Side Impact Air Bag Deployment Commanded (2)
B0040 Left Side Impact Air Bag Deployment Loop Resistance Low (2)
B0041 Left Side Impact Air Bag Deployment Loop Voltage Low (2)
B0042 Steering Wheel Air Bag Stage 2 Deployment Loop Resistance Low (2)
B0043 Steering Wheel Air Bag Stage 2 Deployment Loop Voltage Out Of Range (2)
B0044 Steering Wheel Air Bag Stage 2 Deployment Loop Voltage Low (2)
B0045 Left Side Impact Air Bag Deployment Loop Voltage Out Of Range (2)
B0051 Air Bag Deployment Commanded (2)
B0053 Air Bag Deployment Commanded With Loop Malfunctions Present (2)
B0077 No Communication Between Inflatable Restraint Sensing & Diagnostic Module, & Side Impact Sensor (2)
B0079 Incorrect ID Sent To Inflatable Restraint Sensing & Diagnostic Module By Side Impact Sensor (2)
B0080 Not Okay Message Sent To Inflatable Restraint Sensing & Diagnostic Module By Side Impact Sensor (2)
B0100 No Communication Between Inflatable Restraint Sensing & Diagnostic Module, & Electronic Frontal Sensor (2)
B0101 Not Okay Message Sent To Inflatable Restraint Sensing & Diagnostic Module By Electronic Frontal Sensor (2)
B0102 Incorrect ID Sent To Inflatable Restraint Sensing & Diagnostic Module By Electronic Frontal Sensor (2)
B0160 Ambient Air Temperature Sensor Circuit Low (3)
B0162 Temperature Sensor Circuit Open (3)
B0931 Compass Sensor Circuit Malfunction (3)
B1000 Control Module Malfunction B1000 
B1001 Incorrect Setup Information (3)
B1003 Programming Mode Active Message Not Received (6)
B1007 Electronically Erasable Programmable Read Only Memory Write Error B1007 
B1009 Checksum Error In Control Module B1009 
B1339 Device Power No. 3 Circuit Open B1339 
B1349 Device Ground No. 1 (Chassis Ground No. 1) Circuit Open B1349 
B1440 Power Mode Master Input Circuit Mismatch B1440 
B1447 Retained Accessory Power Circuit Low B1447 
B1478 Retained Accessory Power Circuit High B1478 
B1482 Battery Rundown Protection Circuit Low (14)
B1483 Battery Rundown Protection Circuit High (14)
B1507 High Power Control Circuit Low (14)
B1508 High Power Control Circuit High (14)
B1780 Incorrect VIN Information (7)
B2462 Vehicle Interface Unit Does Not Detect GPS Signal (8)
B2476 Low OnStar® Keypad Voltage, Ignition Switch In RUN Or ACC Position (9)
B2532 Short Or Open In Fog Light Relay Coil Control Circuit, Relay Not Energized (4)
B2533 Short To Power In Fog Light Relay Coil Control Circuit, Relay Energized (4)
B2552 Short To Ground Or Open In Backup Light Relay Coil Control Circuit, Relay Not Energized (4)
B2553 Short To Power In Backup Light Relay Coil Control Circuit, Relay Energized (4)
B2577 Short To Ground Or Open In Headlight Relay Coil Control Circuit, Relay Not Energized (4)
B2578 Short To Power In Headlight Relay Coil Control Circuit, Relay Energized (4)
B2582 Short To Ground Or Open In High Beam Indicator Control Signal Circuit, Headlights & DRL Off (4)
B2587 Short To Ground Or Open In Park Light Relay Coil Control Circuit, Relay Not Energized (4)
B2588 Short To Power In Park Light Relay Coil Control Circuit, Relay Energized (4)
B2602 Short To Ground Or Open In DRL Relay Coil Control Circuit (4)
B2603 Short To Power In DRL Relay Coil Control Circuit (4)
B2617 Footwell Lights Dimming Control Circuit Output, Low (5)
B2618 Footwell Lights Dimming Control Circuit Output, High (5)
B2647 Short To Ground In Headlight Auto Control Ambient Light Ground Reference Circuit (4)
B2648 Open DRL Ambient Light Sensor Signal Circuit, Automatic headlight On (4)
B2650 Short To Ground Or Open In High Bear Indicator Control Signal Circuit (4)
B2651 Short To Ground Or Open In High Beam Indicator Control Signal Circuit, Headlights & DRL Off (4)
B2654 Theater Dimming Ground Circuit Output, Low (5)
B2655 Short To Power In Interior Lights Dimming Control Output Circuit (5)
B2665 Short To Power Or Open In Park Light Circuit, Headlight Switch Is In HEAD Position (4)
B2742 Short To Ground In Fog Light Switch Signal Circuit (4)
B2753 Horn Relay Coil Circuit High (10)
B2823 Trip Odometer Reset Switch Circuit Low (3)
B2947 Passlock™ Sensor Power Circuit Low (12)
B2948 Passlock™ Sensor Power Circuit High (12)
B2957 Passlock™ Sensor Data Circuit Low (12)
B2958 Passlock™ Sensor Data Circuit High (12)
B2960 Passlock™ Sensor Data Incorrect But Valid (12)
B2964 Incorrect Ignition Lock Cylinder Signal Voltage Input (3)
B3031 Controller In Learn Mode (12)
B3033 System Indicates Tamper (12)
B3069 Driver Door Lock Cylinder Switch Signal Circuit Low (11)
B3102 Keyless Entry Data Link Circuit Low (6)
B3103 Keyless Entry Data Link Circuit Low (6)
B3106 Keyless Entry Data Link Parity Error (6)
B3127 Door Lock Actuator Circuit Low (11)
B3128 Door Lock Actuator Circuit High (11)
B3132 Door Lock Actuator Circuit Low (11)
B3133 Door Lock Actuator Circuit High (11)
B3137 Door Lock Actuator Circuit Low (11)
B3138 Door Lock Actuator Circuit High (11)
B3247 Short To Ground In Trunk Release Circuit (11)
B3248 Short To Power In Trunk Release Circuit (11)
B3272 Driver Door Lock Switch Unlock Signal Circuit Low (11)
B3895 Short To Ground In Trunk Open Switch Circuit (11)
B3896 Open Or Short To Power In Trunk Release Circuit (11)
B3898 No Communication To Body Control Module From Rear Compartment Occupant Sensor (11)
B3904 Body Control Module Receives An Invalid Signal From Rear Compartment Occupant Sensor (11)
CXXXX Anti-Lock Brake System Fault (13)
C1245 Low Tire Pressure Detected (3)
P0462 Fuel Level Signal Voltage Low (3)
P0463 Fuel Level Signal Voltage High (3)
P1189 Oil Pressure Switch Signal Voltage Is High (3)
P1554 PCM Inhibiting Cruise Control Operation (15)
P1585 Cruise Control Inhibit Signal Circuit, Improper Voltage (15)
P1626 No Or Incorrect Fuel Enable Signal, With Engine Running (12)
P1629 No Or Incorrect Fuel Enable Signal, With Engine Cranking (12)
P1630 PCM Remains In Password Learn Mode For More Than 2 Seconds (12)
P1631 PCM Detects Incorrect Password, Anti-Theft System Failure Or Attempted Vehicle Theft (12)
PXXXX Powertrain Control Module Fault (16)
DTC U1000 & U1255 Class 2 Communication Malfunction DTC U1000 & U1255 
U1001-U1254 Loss Of XXX Communications U1001-U1254 
U1300 Class 2 Data Link Shorted To Ground U1300 
U1301 Class 2 Data Link Shorted To Power U1301 
Class 2 Data Link Shorted To Ground/Power U1305 
U1500 No Communication Between Vehicle Interface Unit & Vehicle Communication Unit, Ignition Switch In RUN Of ACC Position (9)
(1) Unless otherwise instructed, perform appropriate test under DIAGNOSTIC TESTS.
(2) For information on air bag DIAGNOSIS & TESTING or DISPOSAL PROCEDURES, see lemon-25® AIR BAG SERVICE & REPAIR MANUAL, DOMESTIC & IMPORTED MODELS.
(3) See appropriate ANALOG INSTRUMENT PANELS article.
(4) See appropriate EXTERIOR LIGHTS article.
(5) See appropriate ILLUMINATION/INTERIOR LIGHTS article.
(6) See appropriate REMOTE KEYLESS ENTRY SYSTEMS article.
(7) Repair entertainment system as necessary.
(8) Repair global positioning system as necessary.
(9) Repair cellular phone system as necessary.
(10) See appropriate STEERING COLUMN SWITCHES article.
(11) See appropriate POWER DOOR LOCKS & TRUNK RELEASE article.
(12) See appropriate ANTI-THEFT SYSTEMS article.
(13) See appropriate ANTI-LOCK article in BRAKES.
(14) See appropriate Generators & Regulators article in STARTING & CHARGING SYSTEMS.
(15) See appropriate CRUISE CONTROL SYSTEMS article.
(16) For powertrain control module diagnostic trouble code descriptions and testing procedures not listed, see appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
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