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EC-390 < DTC/CIRCUIT DIAGNOSIS > [VK56DE] P1564 ASCD STEERING SWITCH 2. Disconnect combination switch harness connector M102. 3. Disconnect ECM harness connector. 4. Check harness continuity between combination switch terminal 15 and ECM terminal 67. Refer to Wiring Diagram. 5. Also check harness for short to ground and short to power. OK >> GO TO 5. NG >> GO TO 4. 4. DETECT MALFUNCTIONING PART Check the following. • Harness connectors M31, E152 • Harness connectors E5, F14 • Combination switch (spiral cable) • Harness for open and short between ECM and combination switch >> Repair open circuit or short to ground or short to power in harness or connectors. 5. CHECK ASCD STEERING SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT 1. Check harness continuity between ECM terminal 99 and combination switch terminal 14. Refer to Wiring Diagram. 2. Also check harness for short to ground and short to power. OK >> GO TO 7. NG >> GO TO 6. 6. DETECT MALFUNCTIONING PART Check the following. • Harness connectors M31, E152 • Combination switch (spiral cable) • Harness for open and short between ECM and combination switch >> Repair open circuit or short to ground or short to power in harness or connectors. 7. CHECK ASCD STEERING SWITCH EC-390, "Component Inspection" OK or NG OK >> GO TO 8. NG >> Replace ASCD steering switch. 8. CHECK INTERMITTENT INCIDENT GI-36, "How to Check Terminal" and GI-39, "Intermittent Incident" >> INSPECTION END Component Inspection INFOID:0000000006158860 ASCD STEERING SWITCH 1. Disconnect combination switch (spiral cable) harness connector M102. Continuity should exist. BBIA0362E Continuity should exist. |