For 1990-2009 cars only
Diagnostic Trouble Codes for GMC Truck GMC C-Series Medium Duty Truck B7 1998
Diagnostic Trouble Codes
- DTC 13 Oxygen Sensor Circuit
- DTC 14 ECT Sensor Circuit Low
- DTC 15 ECT Sensor Circuit High
- DTC 21 TP Sensor Circuit High
- DTC 22 TP Sensor Circuit Low
- DTC 24 VSS Circuit Low
- DTC 31 Governor (Engine Speed)
- DTC 32 Exhaust Gas Recirculation (EGR) Error
- DTC 33 MAP Sensor Circuit High Voltage
- DTC 34 MAP Sensor Circuit Low Voltage
- DTC 42 Ignition Control Error
- DTC 43 Knock Sensor Circuit Error
- DTC 44 Lean Exhaust Indicated
- DTC 45 Rich Exhaust Indicated
- DTC 51 PROM Error
- DTC 52 PROM (CAL-PAK) Missing
- DTC 54 Fuel Pump Relay Circuit Error
- DTC 55 ECM Error
- DTC C0221 or C021 RF Wheel Speed Sensor Circuit Open
- DTC C0222 or C022 RF Wheel Speed Signal Missing
- DTC C0223 or C023 RF Wheel Speed Signal Erratic
- DTC C0225 or C025 LF Wheel Speed Sensor Circuit Open
- DTC C0226 or C026 LF Wheel Speed Signal Missing
- DTC C0227 or C027 LF Wheel Speed Signal Erratic
- DTC C0231 RR Wheel Speed Signal Circuit Open
- DTC C0232 RR Wheel Speed Signal Missing
- DTC C0233 RR Wheel Speed Signal Erratic
- DTC C0235 LR Wheel Speed Signal Circuit Open
- DTC C0236 LR Wheel Speed Signal Circuit Missing
- DTC C0237 LR Wheel Speed Signal Erratic
- DTC C0238 or C038 Wheel Speed Mismatch
- DTC C0241-C0258 EBCM Control Valve Circuit
- DTC C0265 or C0266 and C065 C066 EBCM Relay Circuit
- DTC C0267 or C0268 and C067 or C068 Pump Motor Circuit Open/Shorted
- DTC C0269 or C0274 and C069 or C074 Excessive Dump/Isolation Time
- DTC C0271-C0273 or C071 or C073 EBCM Malfunction
- DTC C0279 Trim Level Not Selected
- DTC C0281 or C081 Brake Switch Circuit
- DTC C0286 or C086 ABS Indicator Lamp Circuit Shorted to B+
- DTC P0112 Intake Air Temperature (IAT) Sensor Circuit Low Voltage
- DTC P0113 Intake Air Temperature (IAT) Sensor Circuit High Voltage
- DTC P0117 Engine Coolant Temperature (ECT) Sensor Circuit Low Voltage
- DTC P0118 Engine Coolant Temperature (ECT) Sensor Circuit High Voltage
- DTC P0121 Accelerator Pedal Position (APP) Sensor 1 Circuit Performance
- DTC P0122 Accelerator Pedal Position (APP) Sensor 1 Circuit Low Voltage
- DTC P0123 Accelerator Pedal Position (APP) Sensor 1 Circuit High Voltage
- DTC P0182 Fuel Temperature Sensor Circuit Low Voltage
- DTC P0183 Fuel Temperature Sensor Circuit High Voltage
- DTC P0215 Engine Shutoff (ESO) Solenoid Control Circuit
- DTC P0216 Injection Timing Control Circuit
- DTC P0219 Engine Overspeed
- DTC P0220 Accelerator Pedal Position (APP) Sensor 2 Circuit
- DTC P0221 Accelerator Pedal Position (APP) Sensor 2 Circuit Performance
- DTC P0222 Accelerator Pedal Position (APP) Sensor 2 Circuit Low Voltage
- DTC P0223 Accelerator Pedal Position (APP) Sensor 2 Circuit High Voltage
- DTC P0225 Accelerator Pedal Position (APP) Sensor 3 Circuit
- DTC P0226 Accelerator Pedal Position (APP) Sensor 3 Circuit Performance
- DTC P0227 Accelerator Pedal Position (APP) Sensor 3 Circuit Low Voltage
- DTC P0228 Accelerator Pedal Position (APP) Sensor 3 Circuit High Voltage
- DTC P0231 Fuel Pump Feedback Circuit Low Voltage
- DTC P0236 Turbocharger Boost System Performance
- DTC P0237 Turbocharger Boost Sensor Circuit Low Voltage
- DTC P0238 Turbocharger Boost Sensor Circuit High Voltage
- DTC P0251 Injection Pump Cam Sensor Circuit
- DTC P0263 Cylinder 1 Balance System
- DTC P0266 Cylinder 2 Balance System
- DTC P0269 Cylinder 3 Balance System
- DTC P0272 Cylinder 4 Balance System
- DTC P0275 Cylinder 5 Balance System
- DTC P0278 Cylinder 6 Balance System
- DTC P0281 Cylinder 7 Balance System
- DTC P0284 Cylinder 8 Balance System
- 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 P0307 Cylinder 7 Misfire Detected
- DTC P0308 Cylinder 8 Misfire Detected
- DTC P0335 Crankshaft Position (CKP) Sensor Circuit
- DTC P0370 Timing Reference High Resolution System Performance
- DTC P0380 Glow Plug Feedback Circuit
- DTC P0501 Vehicle Speed Sensor (VSS) Performance
- DTC P0571 Cruise Control Brake Switch Circuit
- DTC P0601 Control Module Read Only Memory (ROM)
- DTC P0602 Control Module Not Programmed
- DTC P0606 Control Module Internal Performance
- DTC P1125 Accelerator Pedal Position (APP) System
- DTC P1214 Injection Pump Timing Offset
- DTC P1216 Fuel Solenoid Response Time Too Short
- DTC P1217 Fuel Solenoid Response Time Too Long
- DTC P1218 Injection Pump Calibration Circuit
- DTC P1621 Control Module Long Term Memory Performance
- DTC P1627 Control Module Analog to Digital Performance
- DTC P1635 5 Volt Reference Circuit
- DTC P1641 Malfunction Indicator Lamp (MIL) Control Circuit
- DTC P1654 Service Throttle Soon Lamp Control Circuit
- DTC P1656 Wastegate Solenoid Control Circuit
