Circuit Description
WARNING: This page is about a different car, the 2002 Toyota ECHO, 2002 Toyota Celica, 2001 Toyota ECHO, and 2001 Toyota Celica. However, it is still accessible from the selected car via links, so may be relevant.
When brake pedal is depressed, brakelight switch sends a signal to ECM. If transaxle is in lock-up mode, ECM cancels lock-up operation and prevents engine stall. DTC will set if ECM detects brakelight switch signal does not turn off during driving. Possible causes:
- Open or short in brakelight switch circuit.
- Brakelight switch malfunction.
- ECM malfunction.