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 C1472-92 TO C149B-17
2023 Jeep Cherokee Trailhawk
Drivetrain Control Module (DTCM) - DTCS C1472-92 To C149B-17
2023 Jeep Cherokee TrailhawkSECTION Drivetrain Control Module (DTCM) - DTCS C1472-92 To C149B-17
- DTC Troubleshooting
- C1472-92-Transfer Case Clutch Control - 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 Faults
- Diagnostic Overview - AWD System
- Check For An Active Or Intermittent Condition
- Preliminary Diagnostic Checks
- Diagnostic Test - RDM Smart Actuator
- C1477-4B-Transfer Case Clutch - 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 - RDM Faults
- Diagnostic Overview - AWD System
- Check For An Active Or Intermittent Condition
- Preliminary Diagnostic Checks
- Diagnostic Test - RDM Smart Actuator
- C1492-00-PTU Internal Performance
- C1493-00-RDM Internal Performance
- C1494-92-PTU Fork Position - Performance Or Incorrect Operation
- 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
- C1495-16-PTU - Circuit Voltage Below Threshold
- 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
- C1495-17-PTU - Circuit Voltage Above Threshold
- 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
- C1495-98-PTU - Component Or System Over Temperature
- 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
- C1496-92-PTU Motor Position - Performance Or Incorrect Operation
- 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
- C1498-92-RDM Fork Position - 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 - Smart Actuator Faults
- Diagnostic Overview - AWD System
- Check For An Active Or Intermittent Condition
- Preliminary Diagnostic Checks
- Diagnostic Test - RDM Smart Actuator
- C1499-92-RDM Motor Position - 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 - Smart Actuator Faults
- Diagnostic Overview - AWD System
- Check For An Active Or Intermittent Condition
- Preliminary Diagnostic Checks
- Diagnostic Test - RDM Smart Actuator
- C149B-16-RDM - Circuit Voltage Below Threshold
- 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
- C149B-17-RDM - Circuit Voltage Above Threshold
- 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
- C1472-92-Transfer Case Clutch Control - Performance Or Incorrect Operation
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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.