P0613

P0613-INTERNAL TRANSMISSION PROCESSOR

For a complete wiring diagram Consult Diagrams/Electrical.

Theory of Operation

The internal watchdog is a separate hardware circuit which continuously monitors the microprocessor. To make sure the transmission is operating properly, the watchdog must receive a signal from the microprocessor within a specific time window. The MIL will illuminate and the transmission will be placed into limp-in after 10 seconds of problem identification.

- When Monitored:
After the ignition switch is turned to the run position and 60 seconds thereafter.

- Set Condition:
Either of the following conditions occur 3 times in less than 590 milliseconds: The watchdog line remains high after the watchdog test or the transmission relay coil is energized and remains on after the watchdog delay expires.





Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding.Testing and Inspection

Diagnostic Test

1. PCM - INTERNAL ERROR
Using the schematics as a guide, check the Powertrain Control Module (PCM) terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits.
If there are no possible causes remaining, view repair.

Repair

- Check for Service Information Tune-ups or Service Bulletins for any possible causes that may apply. If no problems are found, replace and program the PCM. With the scan tool, perform QUICK LEARN.
- Perform 62TE VERIFICATION TEST Transmission Verification Test