Intermittent Problems Check (Hand-Held Tester Only)

WARNING: This page is about a different car, the 2003 Toyota Camry. However, it is still accessible from the selected car via links, so may be relevant.

By putting the vehicle's engine control module (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 DTC. See CLEARING DIAGNOSTIC TROUBLE CODES .
Set the check mode. See CHECK MODE CODE RETRIEVAL (TOYOTA HAND-HELD TESTER ONLY) under RETRIEVING DIAGNOSTIC TROUBLE CODES.
Simulate the conditions of the malfunction described by customer.
Check the connector and terminal.
Wiggle the harness and connector.