Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSJEEP2023CHEROKEE TRAILHAWKREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESDRIVETRAIN CONTROL MODULE (DTCM) - DTCS C008E-00 TO C1440-64
2023 Jeep Cherokee Trailhawk
Drivetrain Control Module (DTCM) - DTCS C008E-00 To C1440-64
2023 Jeep Cherokee TrailhawkSECTION Drivetrain Control Module (DTCM) - DTCS C008E-00 To C1440-64
- DTC Troubleshooting
- C008E-00-Ecu Internal Performance
- C1078-00-Tire Revolutions Range Performance
- C14A7-97-PTU Motor - Component Or System Operation Obstructed Or Blocked
- Notes
- Description And Operation - All Wheel Drive (AWD) System
- General System Architecture
- Component Functional Description - Power Transfer Unit (PTU)
- Enabling/Set Conditions And Possible Causes - Smart Actuator Faults
- Diagnostic Overview - AWD System
- Check For An Active Or Intermittent Condition
- Preliminary Diagnostic Checks
- Diagnostic Test - PTU Smart Actuator
- C14A8-97-RDU Motor - Component Or System Operation Obstructed Or Blocked
- Notes
- Description And Operation - All Wheel Drive (AWD) System
- General System Architecture
- Component Functional Description - Rear Drive Module (RDM)
- Enabling/Set Conditions And Possible Causes - Smart Actuator Faults
- Diagnostic Overview - AWD System
- Check For An Active Or Intermittent Condition
- Preliminary Diagnostic Checks
- Diagnostic Test - RDM Smart Actuator
- C140B-11-Transfer Case Motor - Circuit Short To Ground
- Notes
- Description And Operation - All Wheel Drive (AWD) System
- General System Architecture
- Component Functional Description - Rear Drive Module (RDM)
- Enabling/Set Conditions And Possible Causes - RDM Faults
- Diagnostic Overview - AWD System
- Check For An Active Or Intermittent Condition
- Preliminary Diagnostic Checks
- Diagnostic Test - Hydraulic Pump Faults
- C140B-12-Transfer Case Motor - Circuit Short To Battery
- Notes
- Description And Operation - All Wheel Drive (AWD) System
- General System Architecture
- Component Functional Description - Rear Drive Module (RDM)
- Enabling/Set Conditions And Possible Causes - RDM Faults
- Diagnostic Overview - AWD System
- Check For An Active Or Intermittent Condition
- Preliminary Diagnostic Checks
- Diagnostic Test - Hydraulic Pump Faults
- C140B-13-Transfer Case Motor - Circuit Open
- Notes
- Description And Operation - All Wheel Drive (AWD) System
- General System Architecture
- Component Functional Description - Rear Drive Module (RDM)
- Enabling/Set Conditions And Possible Causes - RDM Faults
- Diagnostic Overview - AWD System
- Check For An Active Or Intermittent Condition
- Preliminary Diagnostic Checks
- Diagnostic Test - Hydraulic Pump Faults
- C140B-4B-Transfer Case Motor - Over Temperature
- Notes
- Description And Operation - All Wheel Drive (AWD) System
- General System Architecture
- Component Functional Description - Rear Drive Module (RDM)
- Enabling/Set Conditions And Possible Causes - Smart Actuator Faults
- Diagnostic Overview - AWD System
- Check For An Active Or Intermittent Condition
- Preliminary Diagnostic Checks
- Diagnostic Test - RDM Smart Actuator
- C1415-92-Transfer Case Motor Current - Performance Or Incorrect Operation
- Notes
- Description And Operation - All Wheel Drive (AWD) System
- General System Architecture
- Component Functional Description - Rear Drive Module (RDM)
- Enabling/Set Conditions And Possible Causes - RDM System Performance Faults
- Diagnostic Overview - AWD System
- Check For An Active Or Intermittent Condition
- Preliminary Diagnostic Checks
- Diagnostic Test - Hydraulic Pump Faults
- C1440-11-Transfer Case Clutch Pressure Sensor - Circuit Short To Ground
- Notes
- Description And Operation - All Wheel Drive (AWD) System
- General System Architecture
- Component Functional Description - Rear Drive Module (RDM)
- Enabling/Set Conditions And Possible Causes - RDM Faults
- Diagnostic Overview - AWD System
- Check For An Active Or Intermittent Condition
- Preliminary Diagnostic Checks
- Diagnostic Test - RDM Pressure Sensor Faults
- C1440-12-Transfer Case Clutch Pressure Sensor - Circuit Short To Battery
- Notes
- Description And Operation - All Wheel Drive (AWD) System
- General System Architecture
- Component Functional Description - Rear Drive Module (RDM)
- Enabling/Set Conditions And Possible Causes - RDM Faults
- Diagnostic Overview - AWD System
- Check For An Active Or Intermittent Condition
- Preliminary Diagnostic Checks
- Diagnostic Test - RDM Pressure Sensor Faults
- C1440-1C-Transfer Case Clutch Pressure Sensor - Circuit Voltage Out Of Range
- Notes
- Description And Operation - All Wheel Drive (AWD) System
- General System Architecture
- Component Functional Description - Rear Drive Module (RDM)
- Enabling/Set Conditions And Possible Causes - RDM Faults
- Diagnostic Overview - AWD System
- Check For An Active Or Intermittent Condition
- Preliminary Diagnostic Checks
- Diagnostic Test - RDM Pressure Sensor Faults
- C1440-64-Transfer Case Clutch Pressure Sensor - Signal Plausibility Failure
- Notes
- Description And Operation - All Wheel Drive (AWD) System
- General System Architecture
- Component Functional Description - Rear Drive Module (RDM)
- Enabling/Set Conditions And Possible Causes - RDM System Performance Faults
- Diagnostic Overview - AWD System
- Check For An Active Or Intermittent Condition
- Preliminary Diagnostic Checks
- Diagnostic Test - Hydraulic Pump Faults
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.