VOICE RECOGNITION/PHONE SWITCH CIRCUIT SHORT TO VOLTAGE

For a complete wiring diagram Refer to Section 8W.

• When Monitored:

  With the ignition on.

• Set Condition:

  The Hands Free Module detects voltage above 4.7 volts on the (X730) Voice Recognition/Phone Switch Signal circuit.

Diagnostic Test

• Go To 2

• The condition that set this DTC is no longer present. Using the wiring diagram/schematic as a guide, inspect the wiring for chafed, pierced, pinched, and partially broken wires and the wiring harness connectors for broken, bent, pushed out, and corroded terminals.

• Repair the (X730) Voice Recognition/Phone Switch Signal circuit for a short to voltage.
• Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).

• Go To 3

• 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).

• Go To 4

• Go To 5

• 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).

• Inspect the wiring and connectors for damage or shorted circuits. If ok, replace and program the Hands Free Module in accordance with the service information.
• Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).

• Repair the (X835) Sensor Ground circuit for an open.
• Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).