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HOMESERVICE MANUALSDODGE AND RAM2013JOURNEY CREW, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 7 ((POWERTRAIN CONTROL MODULE (PCM) - ELECTRICAL DIAGNOSTICS - 41TE AUTOMATIC TRANSMISSION))DTC TROUBLESHOOTINGP0731-GEAR RATIO ERROR IN 1STDIAGNOSTIC TEST
2013 Dodge and Ram Journey Crew, AWD

Diagnostic Test

2013 Dodge and Ram Journey Crew, AWDSECTION Diagnostic Test
WARNING: This page is about a different variant/trim than selected.
  1. DETERMINING IF RELATED TRANSMISSION DTCS ARE PRESENT 
    1. With the scan tool, read DTCs.
    2. If any of these DTCs are present, perform their respective tests first.

      Are there any Loss of Prime, Line Pressure and/or Speed Sensor DTCs present?

      Yes 

      • Refer to the DTC INDEX and perform the appropriate diagnostic procedure. If any of these DTCs are present, they will cause a gear ratio error. Perform the test for Loss of Prime first if it is present.
      • Perform the appropriate TRANSMISSION VERIFICATION TEST. Refer to 40/41 TE TRANSMISSION VERIFICATION TEST  .

      No 

      • Go To  2
  2. CHECK TO SEE IF P0731 IS CURRENT 
    1. With the scan tool, perform the 1st gear clutch test. Follow the instructions on the scan tool.
    2. Increase the throttle angle or TPS degree to 30° for no more than a few seconds.
      CAUTION:

      Do not overheat the transmission.

      Did the Clutch Test pass, Input Speed remain at zero?

      Yes 

      • Go To  3

      No 

      • Repair internal Transmission as necessary. Refer to the Service Information for the proper repair procedures.
      • Air check the UD and LR clutch passages for excessive leakage.
      • Check all of the components related to the UD and LR clutches, and the rear planetary gearset.
      • Check the UD and LR accumulator pistons and seals.
      • Check that the main regulator valve moves freely in its bore.
      • If the UD or LR clutch is burned but no cause is evident (such as a cut piston seal, cracked sump filter, stuck regulator valve, etc.) replace the solenoid/pressure switch assembly.
      • Inspect the Oil Pump.
      • Inspect the input shaft and UD shaft.
      • Perform the appropriate TRANSMISSION VERIFICATION TEST. Refer to 40/41 TE TRANSMISSION VERIFICATION TEST  .
  3. CHECK FOR INTERMITTENT OPERATION 
    1. The conditions to set this DTC are not current at this time.
    2. Check the gearshift linkage adjustment.
    3. Gear ratio DTCs can be set by problems in the Input and Output Speed Sensor circuits. If the vehicle passes the Clutch Test and still sets Gear Ratio DTC, check the Speed Sensors for proper operation.
    4. Turn the ignition off to the lock position.
    5. Remove the Starter Solenoid Relay from the TIPM.
      CAUTION:

      Removal of the Starter Solenoid Relay from the TIPM will prevent the vehicle from being started in gear.

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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.