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• When Monitored: • Set Condition: Possible Causes (X730) VOICE RECOGNITION/PHONE SWITCH SIGNAL CIRCUIT SHORT TO VOLTAGE (X730) VOICE RECOGNITION/PHONE SWITCH SIGNAL CIRCUIT OPEN (X835) SENSOR GROUND CIRCUIT OPEN INSIDE REAR VIEW MIRROR HANDS FREE MODULE Diagnostic Test 1. CHECK FOR ACTIVE DTC With the scan tool, read the active DTC’s. Cycle the ignition switch from off to on at least 5 times, leaving the ignition on for a minimum of 90 seconds per With the scan tool, read the active DTC’s. Does the scan tool display this DTC as active? Yes >> Go To 2 No >> If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness con- nectors. Look for broken, bent, pushed out, or corroded terminals. 2. CHECK THE VOLTAGE OF THE (X730) VOICE RECOGNITION/PHONE SWITCH SIGNAL Turn the ignition off. Disconnect the Inside Rear View Mirror C2 harness connector. Turn the ignition on. Measure the voltage of the (X730) Voice Recognition/Phone Switch Is the voltage above 5.3 volts? Yes >> Repair the (X730) Voice Recognition/Phone Switch Signal circuit for a short to voltage. Perform BODY VERIFICATION TEST – VER 1. (Refer to No >> Go To 3 8T - 24 NAVIGATION/TELECOMMUNICATION - ELECTRICAL DIAGNOSTICS LX |