For 1990-2009 cars only
Diagnostic Trouble Codes
Diagnostic Trouble Codes
- DTC 01 General Sensor Fault
- DTC 02 Instantaneous Battery Voltage Out of Range
- DTC 03 Filtered Battery Voltage Out of Range
- DTC 04 Compressor Relay Short to Ground/Open
- DTC 05 Compressor Relay Short to Battery
- DTC 050, 051, or 055
- DTC 06 Exhaust Valve Short to Ground/Open Circuit
- DTC 07 Exhaust Valve Short to Battery
- DTC 08 Warning Lamp Short to Ground/Open Circuit
- DTC 09 Warning Lamp Short to Battery
- DTC 10 Inside Air Temperature Sensor Voltage Low
- DTC 10 Intake Accumulator Fault
- DTC 11 Driver Seat Forward/Backward Motor Inop
- DTC 11 Exhaust Accumulator Fault
- DTC 11 Inside Air Temperature Sensor Open Circuit
- DTC 11 Transponder Key Problem
- DTC 12 Consecutive Intake Malfunction
- DTC 12 Driver Seat Recliner Motor Inoperative
- DTC 12 LH Air Outlet Sensor Voltage Low
- DTC 12 Wrong Transponder Key
- DTC 13 Driver Air Bag Deployment Loop Short to GND
- DTC 13 Immobilizer Not Programmed
- DTC 13 LH Air Outlet Sensor Open Circuit
- DTC 14 Coolant Temp Voltage Low
- DTC 14 Driver Pretens Deployment Loop Short to GND
- DTC 14 No Transponder Key Programmed
- DTC 14 RH Air Outlet Sensor Voltage Low
- DTC 15 Driver Air Bag Deploy. Loop Short to V
- DTC 15 RH Air Outlet Sensor Open Circuit
- DTC 15 Vehicle Speed Signal Voltage Low
- DTC 16 Driver Pretens Deploy Loop Short to Voltage
- DTC 16 Driver Seat Front Height Motor Inoperative
- DTC 16 Int Air Mix Door Mtr Volts Low/Open Circuit
- DTC 16 Vehicle Speed Signal Voltage High
- DTC 167 Fuel Gauge Voltage Low
- DTC 168 Fuel Gauge Voltage High
- DTC 169 Outside Temperature Sensor Voltage Low
- DTC 17 Driver Seat Rear Height Motor Inoperative
- DTC 17 Interior Air Mix Door Motor Voltage High
- DTC 17 No Engine Request Received
- DTC 171 Outside Temperature Sensor Open Circuit
- DTC 18 Driver Side Mirror Circuit
- DTC 18 LH Air Mix Door Mtr Volts Low/Open Circuit
- DTC 18 MIL Circuit
- DTC 18, 19, and 20
- DTC 19 Inside Mirror Circuit
- DTC 19 LH Air Mix Door Motor Voltage High
- DTC 20 Passenger Side Mirror Circuit
- DTC 20 RH Air Mix Door Mtr Volts Low/Open Circuit
- DTC 21 No Speed Signal
- DTC 21 RH Air Mix Door Motor Voltage High
- DTC 22 Floor Air Mix Dr Mtr Voltage Low/Open CKT
- DTC 22 Solenoid Circuit Short to Ground/Open
- DTC 23 Floor Air Mix Door Motor Voltage High
- DTC 23 Pass. Air Bag Deployment Loop Short to GND
- DTC 23 Power Steering Control Module Malfunction
- DTC 24 Def Air Mix Door Mtr Volts Low/Open Circuit
- DTC 24 Pass. Pretens Deployment Loop Short to GND
- DTC 25 Defrost Air Mix Door Motor Voltage High
- DTC 25 Pass. Air Bag Deploy. Loop Short to Voltage
- DTC 26 Pass. Pretens Deploy. Loop Short to Voltage
- DTC 27 Blower Motor Voltage Low or Open Circuit
- DTC 28 Air Circ. Valve Voltage Low or Open CKT
- DTC 29 Air Circulation Valve Voltage High
- DTC 30 Heating Cut-Off Valve Volts Low or Open CKT
- DTC 31 Driver Air Bag Deploy. Loop Resistance High
- DTC 31 Heating Cut-Off Valve Voltage High
- DTC 32 Driver Air Bag Deploy. Loop Resistance Low
- DTC 32 Rear Window Defog Signal Voltage Low
- DTC 33 Pass. Air Bag Deploy. Loop Resistance High
- DTC 33 Rear Window Defog Signal Voltage Open CKT
- DTC 34 Pass. Air Bag Deploy. Loop Resistance Low
- DTC 34 Rear Window Defogger Open Circuit
- DTC 35 A/C Request Signal Voltage High
- DTC 35 Driver Pretens Deploy. Loop Resistance High
- DTC 36 A/C Request Signal Voltage Low
- DTC 36 Driver Pretens Deploy. Loop Resistance Low
- DTC 37 Heater and A/C Control Switch Stuck
- DTC 37 Pass. Pretens Deploy. Loop Resistance High
- DTC 38 Pass. Pretens Deploy. Loop Resistance Low
- DTC 38 Solar/Twilight Sensor Supply Voltage Low
- DTC 39 Solar/Twilight Sensor Supply Voltage High
- DTC 40 Solar/Twilight Sensor GND Short to Voltage
- DTC 43 Warning Lamp Circuit Short to Voltage
- DTC 44 Warning Lamp Circuit Open or Short to GND
- DTC 50 Seat Adjuster Memory Module Malfunction
- DTC 51 Replace Heater and A/C Control
- DTC 51 Reprogram Cluster or Cluster Malfunction
- DTC 52 Heater and A/C Control Not Programmed
- DTC 52 Reprogram Cluster
- DTC 52 SDM Not Configured
- DTC 53 Configuration Mismatch
- DTC 55 Internal SDM Failure
- DTC 55 Replace Heater and A/C Control
- DTC 55 Seat Adjuster Memory Module Malfunction
- DTC 55 Theft Deterrent Module Malfunction
- DTC 56 SDM Not Reusable
- DTC 65 Passenger Air Bag Deployment Commanded
- DTC 66 Driver Air Bag Deployment Commanded
- DTC 67 Pretensioner Only Deployment Commanded
- DTC 68 Driver Side Air Bag Deployment Commanded
- DTC 69 Pass. Side Air Bag Deployment Commanded
- DTC 71 Driver Side Impact Sensor Comms Invalid
- DTC 73 Driver Side Impact Sensor Short to Voltage
- DTC 74 Driver Side Impact Sensor Short to Ground
- DTC 75 Driver Side Air Bag Short to Ground
- DTC 76 Driver Side Air Bag Short to Voltage
- DTC 77 Driver Side Air Bag Deploy Loop Resist High
- DTC 78 Driver Side Air Bag Deploy Loop Resist. Low
- DTC 81 Pass. Side Impact Sensor Comms Invalid
- DTC 83 Pass. Side Impact Sensor Short to Voltage
- DTC 84 Pass. Side Impact Sensor Short to Ground
- DTC 85 Pass. Side Air Bag Short to Ground
- DTC 86 Pass. Side Air Bag Short to Voltage
- DTC 87 Pass. Side Air Bag Deploy. Loop Resist High
- DTC 88 Pass. Side Air Bag Deploy. Loop Resist. Low
- DTC 97 ONSTAR DCO Link Open or Short to Voltage
- DTC 98 ONSTAR DCO Link Short to Ground
- DTC B1552 Loss of BCM Keep Alive Memory
- DTC B1556 BCM EPROM Write Error
- DTC B1558 BCM EPROM Checksum Error
- DTC B1656 EEPROM Write Error
- DTC B1658 EEPROM Checksum Error
- DTC B1760 CD Changer Not Responding
- DTC B1780 Theft Lock Enabled
- DTC B1970 Exterior Lamp Power
- DTC B1971 Inadvertent Power
- DTC B1973 High Power Control Fault
- DTC B1982 Device Power 1 Circuit High
- DTC B1982 Device Power 1 Circuit High
- DTC B1983 Device Power 1 Circuit Low
- DTC B1983 Device Power 1 Circuit Low
- DTC B2470 Daytime Running Lamps Fault
- DTC B2471 Interior Lamp Fault
- DTC B2472 Low Beam Fault
- DTC B2473 High Beam Fault
- DTC B2476 Parklamp Fault
- DTC B2556 EEPROM Error
- DTC B2560 RKE Message Validation Error
- DTC C0035 LF Wheel Speed Circuit Malfunction
- DTC C0040 RF Wheel Speed Circuit Malfunction
- DTC C0045 LR Wheel Speed Circuit Malfunction
- DTC C0050 RR Wheel Speed Circuit Malfunction
- DTC C0060 LF ABS Solenoid #1 Circuit Malfunction
- DTC C0065 LF ABS Solenoid #2 Circuit Malfunction
- DTC C0070 RF ABS Solenoid #1 Circuit Malfunction
- DTC C0075 RF ABS Solenoid #2 Circuit Malfunction
- DTC C0080 LR ABS Solenoid #1 Circuit Malfunction
- DTC C0085 LR ABS Solenoid #2 Circuit Malfunction
- DTC C0090 RR ABS Solenoid #1 Circuit Malfunction
- DTC C0095 RR ABS Solenoid #2 Circuit Malfunction
- DTC C0110 Pump Motor Circuit Malfunction
- DTC C0121 Valve Relay Circuit Malfunction
- DTC C0141 Left TCS Solenoid #1 Circuit Malfunction
- DTC C0146 Left TCS Solenoid #2 Circuit Malfunction
- DTC C0151 Right TCS Solenoid #1 CKT Malfunction
- DTC C0156 Right TCS Solenoid #2 CKT Malfunction
- DTC C0161 ABS/TCS Brake Switch Circuit Malfunction
- DTC C0245 Wheel Speed Sensor Frequency Error
- DTC C0550 ECU Malfunction
- DTC C0800 Device Power #1 Circuit Malfunction
- DTC P0100 Mass Air Flow (MAF) Sensor Circuit
- DTC P0110 Intake Air Temperature (IAT) Sensor Circuit
- DTC P0115 Engine Coolant Temperature (ECT) Sensor Circuit
- DTC P0116 Engine Coolant Temperature (ECT) Sensor Performance
- DTC P0130 HO2S Circuit Bank 1 Sensor 1
- DTC P0131 HO2S Circuit Low Voltage Bank 1 Sensor 1
- DTC P0132 HO2S Circuit High Voltage Bank 1 Sensor 1
- DTC P0134 HO2S Circuit Insufficient Activity Bank 1 Sensor 1
- DTC P0135 HO2S Heater Performance Bank 1 Sensor 1
- DTC P0136 HO2S Circuit Bank 1 Sensor 2
- DTC P0138 HO2S Circuit High Voltage Bank 1 Sensor 2
- DTC P0139 HO2S Slow Response Bank 1 Sensor 2
- DTC P0140 HO2S Circuit Insufficient Activity Bank 1 Sensor 2
- DTC P0141 HO2S Heater Performance Bank 1 Sensor 2
- DTC P0150 HO2S Circuit Bank 2 Sensor 1
- DTC P0151 HO2S Circuit Low Voltage Bank 2 Sensor 1
- DTC P0152 HO2S Circuit High Voltage Bank 2 Sensor 1
- DTC P0154 HO2S Circuit Insufficient Activity Bank 2 Sensor 1
- DTC P0155 HO2S Heater Performance Bank 2 Sensor 1
- DTC P0156 HO2S Circuit Bank 2 Sensor 2
- DTC P0158 HO2S Circuit High Voltage Bank 2 Sensor 2
- DTC P0159 HO2S Slow Response Bank 2 Sensor 2
- DTC P0160 HO2S Circuit Insufficient Activity Bank 2 Sensor 2
- DTC P0161 HO2S Heater Performance Bank 2 Sensor 2
- DTC P0171 Fuel Trim System Lean Bank 1
- DTC P0172 Fuel Trim System Rich Bank 1
- DTC P0174 Fuel Trim System Lean Bank 2
- DTC P0175 Fuel Trim System Rich Bank 2
- DTC P0201 Injector 1 Control Circuit
- DTC P0202 Injector 2 Control Circuit
- DTC P0203 Injector 3 Control Circuit
- DTC P0204 Injector 4 Control Circuit
- DTC P0205 Injector 5 Control Circuit
- DTC P0206 Injector 6 Control Circuit
- DTC P0218 Transmission Fluid Overtemperature
- DTC P0230 Fuel Pump Relay Control Circuit
- DTC P0300 Engine Misfire Detected
- DTC P0301 Cylinder 1 Misfire Detected
- DTC P0302 Cylinder 2 Misfire Detected
- DTC P0303 Cylinder 3 Misfire Detected
- DTC P0304 Cylinder 4 Misfire Detected
- DTC P0305 Cylinder 5 Misfire Detected
- DTC P0306 Cylinder 6 Misfire Detected
- DTC P0325 Knock Sensor (KS) Circuit Bank 1
- DTC P0330 Knock Sensor (KS) Circuit Bank 2
- DTC P0335 Crankshaft Position (CKP) Sensor Circuit
- DTC P0340 Camshaft Position (CMP) Sensor Circuit
- DTC P0341 Camshaft Position (CMP) Sensor Performance
- DTC P0411 Secondary Air Injection (AIR) System
- DTC P0412 Secondary Air Injection (AIR) Solenoid Control Circuit
- DTC P0418 Secondary Air Injection (AIR) Pump Relay Control Circuit
- DTC P0422 Catalyst System Low Efficiency Bank 1
- DTC P0432 Catalyst System Low Efficiency Bank 2
- DTC P0440 Evaporative Emission (EVAP) System
- DTC P0442 Evaporative Emission (EVAP) System Small Leak Detected
- DTC P0443 Evaporative Emission (EVAP) Purge Solenoid Control Circuit
- DTC P0446 Evaporative Emission (EVAP) Vent Solenoid Control Circuit
- DTC P0450 Fuel Tank Pressure Sensor Circuit
- DTC P0455 Evaporative Emission (EVAP) System Leak Detected
- DTC P0460 Fuel Level Sensor Circuit
- DTC P0500 Vehicle Speed Sensor (VSS) Circuit
- DTC P0506 Idle Speed Low
- DTC P0507 Idle Speed High
- DTC P0560 System Voltage
- DTC P0560 System Voltage High/Low
- DTC P0571 Cruise Control Brake Switch Circuit
- DTC P0601 Control Module Read Only Memory (ROM)
- DTC P0601 TCM Memory ROM
- DTC P0602 Control Module Not Programmed
- DTC P0602 TCM Not Programmed
- DTC P0603 Control Module Long Term Memory Reset
- DTC P0604 Control Module Random Access Memory (RAM)
- DTC P0606 Control Module Internal Performance
- DTC P0650 Malfunction Indicator Lamp (MIL) Control Circuit
- DTC P0703 Brake Switch Circuit Malfunction
- DTC P0705 Trans Range Switch Circuit
- DTC P0706 Trans Range Switch Performance
- DTC P0712 Transmission Fluid Temperature (TFT) Sensor Circuit Low Input
- DTC P0713 Transmission Fluid Temperature (TFT) Sensor Circuit High Input
- DTC P0722 Output Speed Sensor Circuit Low Input
- DTC P0725 Engine Speed Input Circuit
- DTC P0727 Engine Speed Circuit No Signal
- DTC P0730 Incorrect Gear Ratio
- DTC P0742 TCC System Stuck On
- DTC P0743 TCC Enable Solenoid Circuit Electrical
- DTC P0748 Pressure Control Solenoid Circuit Electrical
- DTC P0751 1-2/3-4 Shift Solenoid Valve Stuck Off
- DTC P0752 1-2/3-4 Shift Solenoid Valve Stuck On
- DTC P0753 1-2/3-4 Shift Solenoid Circuit Electrical
- DTC P0756 2-3 Shift Solenoid Valve Stuck Off
- DTC P0757 2-3 Shift Solenoid Valve Stuck On
- DTC P0758 2-3 Shift Solenoid Circuit Electrical
- DTC P1112 Intake Plenum Switchover Solenoid Control Circuit
- DTC P1113 Intake Resonance Switchover Solenoid Control Circuit
- DTC P1120 Throttle Position (TP) Sensor 1 Circuit
- DTC P1141 HO2S Heater Control Circuit Bank 1 Sensor 2
- DTC P1161 HO2S Heater Control Circuit Bank 2 Sensor 2
- DTC P1220 Throttle Position (TP) Sensor 2 Circuit
- DTC P1271 Accelerator Pedal Position (APP) Sensor 1-2 Correlation
- DTC P1275 Accelerator Pedal Position (APP) Sensor 1 Circuit
- DTC P1280 Accelerator Pedal Position (APP) Sensor 2 Circuit
- DTC P1460 Misfire Detected With Low Fuel Level
- DTC P1501 Theft Deterrent System
- DTC P1502 Theft Deterrent Fuel Enable Signal Not Received
- DTC P1503 Theft Deterrent Fuel Enable Signal Not Correct
- DTC P1510 Throttle Control System Performance - Throttle Limitation Active
- DTC P1511 Throttle Control System - Backup System Performance
- DTC P1516 Throttle Actuator Control (TAC) Module Throttle Actuator Position Performance
- DTC P1519 Throttle Actuator Control (TAC) Module Internal Circuit
- DTC P1523 Throttle Closed Position Performance
- DTC P1526 Minimum Throttle Position Not Learned
- DTC P1530 Throttle Actuator Control (TAC) Module Internal Circuit
- DTC P1545 Air Conditioning (A/C) Clutch Relay Control Circuit
- DTC P1600 TCM Internal Watchdog Operation
- DTC P1602 Knock Sensor (KS) Module Performance
- DTC P1621 TCM Long Term Memory Performance
- DTC P1625 TCM Power Control Relay Circuit Shorted
- DTC P1662 Cruise Lamp Control Circuit
- DTC P1700 Transmission Control Module (TCM) Requested MIL Illumination
- DTC P1740 Torque Reduction Signal Circuit
- DTC P1760 TCM Supply Voltage Interrupted
- DTC P1781 Engine Torque Signal Circuit
- DTC P1792 ECM to TCM Engine Coolant Signal
- DTC P1800 TCM Power Relay Control Circuit
- DTC P1835 Kick-Down Switch Circuit
- DTC P1845 Torque Limit Management
- DTC P1850 Brake Band Apply Solenoid Circuit
- DTC P1870 Transmission Component Slipping
- DTC P1890 Throttle Position Signal Input
- DTC Table
- DTC U1128 Loss of Communications with IRC
- DTC U1255 Generic Loss of Class 2 Data
- DTC U1300 Class 2 Short to Ground
- DTC U1301 Class 2 Short to Battery
- DTC U2100 CAN Bus OFF
- DTC U2100 CAN-BUS Communication Malfunction
- DTC U2103 Fewer Controllers On Bus Than Programmed
- DTC U2104 CAN Bus Reset Counter Overrun
- DTC U2104 CAN Bus Reset Counter Overrun
- DTC U2105 CAN Bus Error ECM
- DTC U2105 Lost Comm with Engine Control System
- DTC U2106 Lost Comm with Trans Control System
- DTC U2108 CAN Bus Error ABS
- DTC U2108 Lost Comm with ABS Control System
