Check For Intermittent Problems
WARNING: This page is about a different car, the 2004 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
Hand-held tester only:
By putting the vehicle's ECM in the check mode, the 1 trip detection logic is possible instead of the 2 trip detection logic, and the sensitivity to detect faults is increased. This makes it easier to detect intermittent problems.
- Clear the DTCs (See CHECK MODE PROCEDURE ).
- Set the check mode (See CHECK MODE PROCEDURE ).
- Perform a simulation test.
- Check the connector and terminal.
- Wiggle the harness and connector.