Diagnostic Test

2013 Jeep Wrangler Sport, Standard TransSECTION Diagnostic Test
  1. CHECK FOR A DTC C1232-DRIVE TEST: PRESSURE SENSOR 
    NOTE:

    This DTC must be active for the results of this test to be valid.

    1. Turn the ignition on.
    2. With the scan tool, read and record DTCs.
    3. With the scan tool, read and record Environmental Data to help identify the conditions in which the DTC was set.
    4. Perform ECU initialization with drive test. Refer to STANDARD PROCEDURE  and perform the ABS VERIFICATION TEST.
    5. Start the engine and apply the brake firmly.
    6. With the scan tool, read and record DTCs.

      Does the scan tool display: C1232-DRIVE TEST: PRESSURE SENSOR?

      Yes 

      • Go To  2

      No 

  2. CHECK HYDRAULIC SYSTEM AND BRAKE SYSTEM COMPONENT INSTALLATION AND FUNCTION 
    1. Verify that the Anti-Lock Brake Module and Hydraulic Control Unit are properly installed.
    2. Verify that the hydraulic system is properly filled and bled.
    3. Verify that the brake system components are installed and functioning properly.

      Were any problems found?

      Yes 

      No 

      • Clean contacts in HCU first if problem reoccurs replace the Integrated Control Unit in accordance with the Service Information.
      • Perform ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
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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.