DTC 90

DTC 90: A/T Control System (Including PCM) Malfunction

1. Check for A/T System DTCs with the HDS.

Are any DTCs indicated?

YES - Troubleshoot the indicated A/T system DTC(s).

NO - Go to step 2.

2. Clear the DTCs with the HDS.
3. Test-drive the vehicle with the adaptive cruise control (ACC) activated.
4. Check for DTCs with the HDS.

Is DTC 90 indicated?

YES - Check for loose or poor connections. If OK, replace the ACC unit.

NO - Intermittent failure, the system is OK at this time. Check for loose or poor connections.