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3. AUTOMATIC DAY/NIGHT MIRROR Turn the ignition off. Connect a jumper wire between (X730) Voice Recognition/Phone Switch Turn the ignition on. With the scan tool, monitor the VR Phone Switch Voltage. Is the voltage approximately 0 volts? Yes >> Replace the Automatic Day/Night Mirror in accordance with the service information. Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE). No >> Go To 4 4. (X730) VOICE RECOGNITION/PHONE SWITCH SIGNAL CIRCUIT OPEN Turn the ignition off. Disconnect the Hands Free Module C1 harness connector. Measure the resistance of the (X730) Voice Recognition/Phone Switch Is the resistance below 5.0 ohms? Yes >> Go To 5 No >> Repair the (X730) Voice Recognition/Phone Switch Signal circuit for an open. Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE). 8T - 74 NAVIGATION/TELECOMMUNICATION - ELECTRICAL DIAGNOSTICS KJ |