Code 15: Ignition Output Signal
- Turn ignition off. Remove fuse No. 15 (ACG) fuse from underdash fuse box for 10 seconds to reset ECU. Check ECU for fault codes. See RETRIEVING CODES . If Code 15 is not present, problem is intermittent. Check for poor connections at ECU and ignitor unit connectors. Test drive vehicle and retest.
- If Code 15 is present, turn ignition off. Disconnect 8-wire connector from ignitor unit. Using an ohmmeter, check for continuity between terminal "C" and terminal "F". See Fig 1 . If continuity is not present, repair open in Black wire(s) between ground terminal G102 and 8-wire connector.
- If continuity is present, disconnect 6-wire connector from ignitor unit. See Fig 2 . Connect ECU Test Harness (07LAJ-PT3010A ) between ECU and ECU connector. See Figure . Check for continuity between body ground and test terminals A21, A22, B3, B4, B6 and B8. If continuity is present at any terminal, repair short circuit.
- If continuity is not present, check for continuity between ignitor unit 6-wire connector terminal and corresponding terminal at ECU connector. See ECU/IGNITOR UNIT CONNECTOR TERMINAL IDENTIFICATION
table. If continuity is not present, repair open circuit. If continuity is present, substitute a known good ignitor. If symptom/condition goes away, replace original ignitor. If symptom/condition does not go away, substitute a known good ECU. If symptom/condition goes away, replace original ECU.ECU/IGNITOR UNIT CONNECTOR TERMINAL IDENTIFICATION
Ignitor Unit Connector Terminals ECU Connector Terminals Wire Color A B8 Blue B A22 Brown C A21 Pink D B3 Red E B4 Gray F B6 Green