P1630

DTC P1630: Problem in TCM
ULEV Model

NOTE: Record all freeze data and review General Troubleshooting Information before you troubleshoot.

1. Turn the ignition switch ON (II).
2. Shift to the P or N position.
3. Turn the ignition switch OFF.
4. Disconnect TCM connector A (31P) for more than 5 seconds, then reconnect the connector.
5. Turn the ignition switch ON (II), and wait for more than 5 seconds.
6. Recheck for DTC P1630.
Does the scan tool or the HDS indicate code P1630?
YES- Update the TCM if it does not have the latest software, or substitute a known-good TCM, then recheck. If the symptom/indication goes away with a known-good TCM, replace the original TCM.
NO- Intermittent failure, the system is OK at this time.