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 MANUALSJEEP2013WRANGLER SPORT, AUTOMATIC TRANSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 25 (COMMUNICATION - NON-DTC BASED DIAGNOSTICS)
2013 Jeep Wrangler Sport, Automatic Trans
Section 25 (Communication - Non-DTC Based Diagnostics)
2013 Jeep Wrangler Sport, Automatic TransSECTION Section 25 (Communication - Non-DTC Based Diagnostics)
WARNING: This page is about a different car, the 2012 Jeep Wrangler. However, it is still accessible from the selected car via links, so may be relevant.
- Diagnosis And Testing
- Both Diagnostic Can C (+) And Diagnostic Can C (-) Circuits Open
- Diagnostic Can C (+) And/Or Diagnostic Can C (-) Circuits High
- Diagnostic Can C (-) Circuit Low
- Diagnostic Can C (+) Circuit Low
- Diagnostic Can C (-) Circuit Open
- Diagnostic Can C (+) Circuit Open
- Diagnostic Can C (+) Shorted To Diagnostic Can C (-)
- No Response From Abs (Antilock Brake Module)
- No Response From ASBS (Automatic Sway Bar System)
- No Response From Amp (Amplifier)
- No Response From Amp (Amplifier) - Start/Stop
- No Response From CCN (Cluster)
- No Response From CCN (Cluster) - Start/Stop
- No Response From ESM (Electric Gear Shift Module)
- No Response From FDCM (Final Drive Control Module) (ASBS)
- No Response From HFM (Hands Free Module)
- No Response From HFM (Hands Free Module) - Start/Stop
- No Response From HVAC (A/C Heater Control Module)
- No Response From HVAC (A/C Heater Control Module) - Start/Stop
- No Response From ITM (Intrusion Transceiver Module)
- No Response From Orc (Occupant Restraint Controller)
- No Response From Pcm (Powertrain Control Module) (Diesel)
- No Response From Pcm (Powertrain Control Module) - Gas
- No Response From Radio
- No Response From Radio - Start/Stop
- No Response From TCM (Transmission Control Module)
- No Response From The Steering Angle Sensor (SAS)
- No Response From TIPM (Totally Integrated Power Module)
- No Response From WCM (Wireless Control Module)
- Stored Lost Communication DTCS
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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.