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EC-428 < DTC/CIRCUIT DIAGNOSIS > [VQ35DE] P1564 ASCD STEERING SWITCH • Combination switch (spiral cable) • Harness for open and short between ECM and combination switch >> Repair open circuit, 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 the continuity between combination switch and ECM harness connector. 2. Also check harness for short to ground and short to power. YES >> GO TO 7. NO >> GO TO 6. 6. DETECT MALFUNCTIONING PART Check the following. • Harness connectors E30, M1 • Combination switch (spiral cable) • Harness for open and short between ECM and combination switch >> Repair open circuit, short to ground or short to power in harness or connectors. 7. CHECK ASCD STEERING SWITCH EC-428, "Component Inspection" Is the inspection result normal? YES >> GO TO 8. NO >> Replace steering wheel. Refer to ST-17, "Removal and Installation" 8. CHECK INTERMITTENT INCIDENT GI-41, "Intermittent Incident" >> INSPECTION END Component Inspection INFOID:0000000010095126 1. CHECK ASCD STEERING SWITCH 1. Turn ignition switch OFF. 2. Disconnect combination switch (spiral cable) harness connector. 3. Check resistance between combination switch harness connec- tor terminals as per the following. Is the inspection result normal? YES >> INSPECTION END NO >> Replace steering wheel. Refer to ST-17, "Removal and Installation" Combination switch ECM Continuity Terminal Connector Terminal 13 E10 85 Existed Combination switch Condition Resistance ( Ω) Terminals 13 and 16 MAIN switch: Pressed Approx. 0 CANCEL switch: Pressed Approx. 250 SET/COAST switch: Pressed Approx. 660 RESUME/ACCELERATE switch: Pressed Approx. 1,480 All ASCD steering switches: Released Approx. 4,000 JMBIA1625ZZ |