What this code means

The Transmission Control Module (TCM) has requested the PCM to turn on the Check Engine Light due to a transmission fault. There will be additional transmission-specific codes stored.

Symptoms

• Check Engine Light
• Possible shift problems
• May be in limp mode

Common causes

• Various transmission issues - check for additional codes
• TCM detected a fault
• Wiring issue between TCM and PCM

Diagnostic steps

1. Read ALL codes including transmission-specific codes
2. Check transmission fluid level and condition
3. Address other transmission codes first

Repair notes

This is an informational code. Look for other P07xx and P08xx codes that explain the actual problem.

Other Powertrain codes on this vehicle