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 MANUALSJEEP2014GRAND CHEROKEE LAREDO, AWDREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTDRIVERS ASSISTANCE SYSTEMS - ADAS(PARK ASSIST MODULE (PAM) (PTS/PAM) - ELECTRICAL DIAGNOSTICS)DTC TROUBLESHOOTINGU0001-00 CAN C BUSDIAGNOSTIC TEST
2014 Jeep Grand Cherokee Laredo, AWD
Diagnostic Test
2014 Jeep Grand Cherokee Laredo, AWDSECTION Diagnostic Test
VERIFY DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE
NOTE:
Make sure the battery voltage is between 10 and 16 volts before proceeding.
- Cycle the ignition on.
- With the scan tool, read the active DTCs.
Does the scan tool display: U0001-00-CAN C BUS?
Yes
- For the DTC U0001-00 Can C Bus, use the U0002-00 Can C Bus Off Performance diagnostic procedure.
- Refer to DTC INDEX and perform the U0002-CAN C Bus Off Performance diagnostic procedure.
No
- Refer to DIAGNOSIS AND TESTING and perform the Stored Lost Communication DTCs diagnostic procedure.
RENDER: 1.0x
NO RELATED
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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.