Section 13 (Engine Controls - Tests W/Codes - 6.5L Diesel.)
WARNING: This page is about a different variant/trim than selected.
- Introduction
- Self-Diagnostic System
- Diagnostic Trouble Code Charts
- Notes
- On-Board Diagnostic (OBD) System Check (Models With Pcm)
- On-Board Diagnostic (OBD) System Check - (4L80-E With TCM)
- Chart A-1, No Mil (Service Engine Soon Light) (Models W/ Pcm)
- Chart A-1, No Mil (Service Engine Soon Light) 4L80-E W/ TCM
- Chart A-2, No Scan Data, Mil (Service Engine Soon) On At All Times Or Will Not Flash Mil (Models With Pcm)
- Chart A-2, No Data Link Connector (DLC) Data, Will Not Display DTC 12 Or Mil On Steady (4L80-E W/ TCM)
- Chart A-3, Engine Cranks But Will Not Run
- EGR Control Pressure/BARO Sensor Output Check
- DTC 13, Engine Shutoff Solenoid Circuit Fault
- DTC 14, ECT Sensor Circuit Low (High Temperature Indicated)
- DTC 15, ECT Sensor Circuit High (Low Temperature Indicated)
- DTC 16, Vehicle Speed Signal Buffer Fault
- DTC 17, High Resolution Circuit Fault
- DTC 18, Pump Cam Reference Pulse Error
- DTC 19, Crankshaft Position Reference Error
- DTC 21, App No. 1 Circuit High (Models With Pcm)
- DTCS 21/22, TP Sensor Circuit High/Low (4L80-E With TCM)
- DTC 22, App No. 1 Circuit Low (Models With Pcm)
- DTC 23, App No. 1 Circuit Range Fault
- DTC 24, VSS Circuit Low (Transmission Output Speed Signal)
- DTC 25, Accelerator Pedal Position (App) No. 2 Circuit High
- DTC 26, Accelerator Pedal Position (App) No. 2 Circuit Low
- DTC 27, App No. 2 Circuit Range Fault
- DTC 28, Transmission Range Pressure Switch Circuit Fault
- DTC 29, Glow Plug Relay Circuit Fault
- DTC 31, EGR Control Pressure/BARO Sensor CKT Low (High Vac)
- DTC 32, EGR Circuit Error - "G" Series
- DTC 33, EGR Control Pressure/BARO Sensor CKT High (Low Vac)
- DTC 34, Injection Timing Stepper (Its) Motor Circuit Fault
- DTC 35, Injection Pulse Width Error (Response Time Short)
- DTC 36, Injection Pulse Width Error (Response Time Long)
- DTCS 37/38, TCC Brake Switch Stuck On/Off
- DTC 39, TCC Stuck Off (4L80-E)
- DTC 41, Brake Switch Circuit Fault
- DTC 41, Brake Switch Circuit Fault - "P" Series
- DTC 42, Fuel Temp Circuit Low (High Temp Indicated)
- DTC 43, Fuel Temp Circuit High (Low Temp Indicated)
- DTC 44, EGR Pulse Width Error - "G" Series
- DTC 45, EGR Vent Error - "G" Series
- DTC 46, Malfunction Indicator Light (Mil) Circuit Fault
- DTC 47, IAT Sensor Circuit Low (High Temperature Indicated)
- DTC 48, IAT Sensor Circuit High (Low Temperature Indicated)
- DTC 49, Service Throttle Soon Light Circuit Fault
- DTC 51, Prom Problem (Faulty Or Incorrect Prom)
- DTCS 52/53, System Voltage High Long
- DTC 54, Pcm Fuel Circuit Error
- DTC 56, Injection Pump Calibration Resistor Error
- DTC 57, Pcm 5-Volt Shorted
- DTC 58, Transmission Fluid Temp Sensor Circuit Low (High Temp Indicated) 4L60-E & 4L80-E
- DTC 59, Transmission Fluid Temp Sensor Circuit High (Low Temp Indicated) 4L60-E & 4L80-E
- DTC 61, Turbo Boost Sensor Circuit High - "P" Series
- DTC 62, Turbo Boost Sensor Circuit Low - "P" Series
- DTC 63, Accelerator Pedal Position (App) No. 3 Circuit High (Models With Pcm)
- DTCS 63/64, BARO Sensor Circuit High/Low (4L80-E With TCM)
- DTC 64, App No. 3 Circuit Low (Models With Pcm)
- DTC 65, App No. 3 Circuit Range Fault
- DTC 66, 3-2 Control Solenoid CKT Fault - "G" Series 4L60-E
- DTC 67, TCC Solenoid Circuit Fault - "G" Series 4L60-E
- DTC 68, Transmission Component Slipping (4L80-E)
- DTC 69, TCC Stuck On - "G" Series 4L60-E
- DTC 69, TCC Stuck On (4L80-E)
- DTC 71, Set/Coast Switch Fault (Models With Pcm)
- DTC 71, Camshaft Position Sensor Circuit Low (4L80-E W/ TCM)
- DTC 72, Speed Sensor Circuit Loss (Trans Output Speed Signal)
- DTC 73, Pressure Control Solenoid Circuit (Current Error)
- DTC 74, Transmission Input Speed Sensor Circuit (4L80-E)
- DTC 75, System Voltage Low
- DTC 76, Resume/ACCEL Switch Fault
- DTC 78, WASTEGATE Solenoid Fault - "P" Series
- DTC 79, Transmission Fluid OVERTEMP - 4L60-E & 4L80-E
- DTC 81, 2-3 Shift Solenoid Circuit Fault
- DTC 82, 1-2 Shift Solenoid Circuit Fault
- DTC 83, TCC PWM Solenoid Circuit Fault
- DTC 84, Accelerator Pedal Position (App) Circuit Fault
- DTC 85, Undefined Ratio Error (4L80-E)
- DTC 86, Low Ratio Error (4L80-E)
- DTC 87, High Ratio Error (4L80-E)
- DTC 88, TDC Offset Error
- DTC'S 91-98, Cylinder Balance Fault
- DTC 99, App No. 2 (5-Volt Reference Fault)
- Wiring Diagrams