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AV-118 < COMPONENT DIAGNOSIS > [AUDIO WITH NAVIGATION] STEERING SWITCH SIGNAL GND CIRCUIT STEERING SWITCH SIGNAL GND CIRCUIT Description INFOID:0000000000955227 Transmits the steering switch signal to audio unit. Diagnosis Procedure INFOID:0000000000947127 1. CHECK STEERING SWITCH SIGNAL GND CIRCUIT 1. Disconnect audio unit connector and spiral cable connector. 2. Check continuity between audio unit harness connector terminal 15 and spiral cable harness connector 3. Connect audio unit connector. Is inspection result OK? YES >> GO TO 2. NO >> Repair harness or connector. 2. CHECK SPIRAL CABLE Check spiral cable. Is inspection result OK? YES >> GO TO 3. NO >> Replace spiral cable. 3. CHECK GROUND CIRCUIT 1. Connect audio unit connector. 2. Check continuity between audio unit harness connector terminal 15 and ground. Is inspection result OK? YES >> GO TO 4. NO >> Replace audio unit. 4. CHECK STEERING SWITCH 1. Turn ignition switch OFF. 2. Check steering switch. Refer to AV-118, "Component Inspection" Is inspection result OK? YES >> INSPECTION END NO >> Replace steering switch. Component Inspection INFOID:0000000000955228 Measure the resistance between the steering switch connector terminals 20 to 17 and 16 to 17. Standard 15 - 31 : Continuity should exist. 15 - Ground : Continuity should exist. Between terminals 20 and ENTER switch ON : 990 – 1030 Ω MENU DOWN switch ON : 324 – 336 Ω MENU UP switch ON : 108 – 112 Ω SOURCE switch ON : 0 Ω Between terminals 16 and JPNIA0166GB |