Diagnostic Test

WARNING: This page is about a different variant/trim than selected.

CHECK FOR AN ACTIVE CONDITION
1. With the scan tool, read Transmission Control Module (TCM) Diagnostic Trouble Codes (DTCs) and record on the repair order.
2. Record the Event Data and Environmental Data.
3. With the scan tool, erase DTCs.
4. Raise the vehicle on the hoist.
5. Start the Engine.
6. With the scan tool, monitor the Output Speed Sensor rpm.
7. Firmly apply the brakes and place the gear selector in Drive.
  WARNING:
  To avoid personal injury or death, keep hands and feet clear of rotating wheels.
8. Release the brakes and raise the engine speed to allow the Transmission to upshift to the 1-2 and 2-3 shift schedule.
  Did the Output Speed Sensor display an rpm below 1, 000?
  
  Yes
  - Go To 2
  No
  - Perform the TESTING FOR AN INTERMITTENT CONDITION diagnostic procedure. Refer to TESTING FOR AN INTERMITTENT CONDITION .
CHECK TRANSMISSION FOR INTERNAL FAILURE
NOTE:
This DTC is an indication of a internal Transmission failure.
1. Remove the Transmission Oil Pan and inspect for excessive debris such as clutch friction material or metal contamination.
  Is there any indication of an internal Transmission failure?
  
  Yes
  - Repair internal Transmission as necessary in accordance with the Service Information. Refer to DISASSEMBLY AND ASSEMBLY .
  - Perform the TRANSMISSION VERIFICATION TEST. Refer to TRANSMISSION VERIFICATION TEST .
  No
  - Using the schematics as a guide, check the TCM connector and all related in-line connector terminals for corrosion, damage, or pushed out terminals. Pay particular attention to the power and ground circuits. If no problems are found, replace and program the TCM in accordance with the Service Information. Refer to MODULE, TRANSMISSION CONTROL (TCM), REMOVAL AND INSTALLATION .
  - Perform the TRANSMISSION VERIFICATION TEST. Refer to TRANSMISSION VERIFICATION TEST .