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Home >> Toyota >> 2003 >> Celica GT, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Self Diagnostics - 1ZZ-FE >> Self-Diagnostic System >> Intermittent Problem Check

Intermittent Problem Check

NOTE: By putting the vehicle's ECM in check mode, 1 trip detection logic is possible instead of 2 trip detection logic and sensitivity to detect open circuits is increased. This makes it easier to detect intermittent problems.

Hand-Held Tester Only

  1. Clear the DTC. See CLEARING DIAGNOSTIC TROUBLE CODES .
  2. Set the check mode. See CHECK MODE CODE RETRIEVAL  under RETRIEVING DIAGNOSTIC TROUBLE CODES.
  3. Simulate the conditions of the malfunction described by customer.
  4. Check the connector and terminal.
  5. Handle the connector.
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