Diagnostic Test

2011 Jeep Wrangler Rubicon, AutomaticSECTION Diagnostic Test
  1. CHECK PCM FOR CHARGING SYSTEM DTC 
    1. Turn the ignition on.
    2. With the scan tool, clear all DTC's.
    3. Cycle the ignition switch from on to off.
    4. Start the engine.
    5. Run the engine at approximately 1500 RPM for 1 minute.
    6. With the scan tool, read DTCs.

      Are there any Charging System DTCs set in the PCM?

      Yes 

      No 

      • Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.
      • Perform BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
RENDER: 1.0x

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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.