Diagnostic Test

WARNING: This page is about a different car, the 2011 RAM Pickup. However, it is still accessible from the selected car via links, so may be relevant.

DETERMINING IF RELATED TRANSMISSION DTCS ARE PRESENT
1. Using the scan tool, read Transmission DTCs.
2. If any of these DTCs are present, perform their respective tests first.
  Are there any Loss of Prime, Line Pressure Sensor and/or Speed Sensor DTCs present?
  
  Yes
  - Refer to DTC Based Diagnostics 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.
  No
  - Go To 2.
CHECK TO SEE IF P0731 IS CURRENT
1. Using the scan tool, perform the Reverse 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 in accordance with the Service Information. Check all of the components related to the Reverse and L/R clutches. Inspect the Oil Pump and repair or replace as necessary.
  - Perform the 42RLE TRANSMISSION VERIFICATION TEST. Refer to 42RLE TRANSMISSION VERIFICATION TEST .
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. Remove the Ignition Switch Feed fuse from the TIPM.
  CAUTION:
  Removal of the Ignition Switch Feed fuse from the TIPM will prevent the vehicle from being started in gear.
  
  WARNING:
  The Ignition Switch Feed fuse must be removed from the TIPM. Failure to do so can result in possible serious or fatal injury.
5. Install the Transmission Simulator (special tool #8333A, Simulator, Transmission) and the Electronic Transmission Adapter kit.
6. Check the wiring and connectors related to the Speed Sensors for a good connection, then perform a wiggle test using the Transmission Simulator.
7. This DTC can also be set under extreme temperature conditions, this is usually caused by an internal problem. Verify if the problem is only experienced under extreme hot or cold conditions.
8. Using the scan tool, check the Event Data to help identify the conditions in which the DTC was set.
9. Check for Service Information Tune-ups or Service Bulletins for any possible causes that may apply.
  Were there any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the 42RLE TRANSMISSION VERIFICATION TEST. Refer to 42RLE TRANSMISSION VERIFICATION TEST .
  No
  - Test Complete.