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3 CHECK ASCD STEERING SWITCH GROUND CIRCUIT FOR OPEN AND SHORT 1. Turn ignition switch OFF. SEC198D Continuity should exist. 5. Also check harness for short to power. OK or NG OK © GO TO 5. NG © GO TO 4. 4 DETECT MALFUNCTIONING PART Check the following. I Harness connectors M223, F53 I Joint connector-20 I Combination switch (spiral cable) I Harness for open and short between ECM and ASCD steering switch © Repair open circuit or short to power in harness or connectors. 5 CHECK ASCD STEERING SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT 1. Disconnect ECM harness connector. Refer to Wiring Diagram. Continuity should exist. 3. Also check harness for short to ground and short to power. OK or NG OK © GO TO 7. NG © GO TO 6. 6 DETECT MALFUNCTIONING PART Check the following. I Harness connectors M223, F53 I Combination switch (spiral cable) I Harness for open and short between ECM and ASCD steering switch © Repair open circuit or short to ground or short to power in harness or connectors. GI MA EM LC FE AT AX SU BR ST RS BT HA SC EL IDX DTC P1564 ASCD STEERING SWITCH Diagnostic Procedure (Cont’d) EC-617 |