Diagnostic Test

CHECK VEHICLE REPAIR HISTORY 

1. Refer to the vehicle repair history.
   • With the scan tool, verify that the TCM software is updated to the latest part number. If needed update the TCM software in accordance with the service information.

   Was the TCM replaced recently, or the transmission replaced with a remanufactured unit?

   Yes 

   • With a scan tool, perform the Valve Body/Solenoid relearn procedure.
   • Perform the TRANSMISSION VERIFICATION TEST. Refer to 948TE-9HP48 TRANSMISSION VERIFICATION TEST .

   No 

   • Confirm that the correct valve body for the vehicle was installed. The number of solenoids should be the same as on the one removed.
   • Perform the TRANSMISSION VERIFICATION TEST. Refer to 948TE-9HP48 TRANSMISSION VERIFICATION TEST .