Diagnostic Flow Chart

5R44E and 5R55E

Diagnostic Flow Chart





Prior to carrying out the flow test, the following items should be checked:

- Know and understand the customer concern.
- Verify the concern by operating the vehicle.
- Check the transmission fluid level and condition.
- Check for non-factory-installed items and verify correct installation.
- Check the selector lever linkage adjustments.
- Check TSBs for vehicle concerns.
- Carry out both Self Test Key ON Engine OFF (KOEO) and Key ON Engine Running (KOER).
- Record all DTCs.

Diagnostic Flow Chart