VOICE RECOGNITION SWITCH STUCK
For a complete wiring diagram Refer to Section 8W.
- When Monitored:
With the ignition on.
- Set Condition:
The Hands Free Module detects voltage between 3.5 volts and 4.0 volts on the (X730) Voice Recognition/Phone Switch Signal circuit for more than 30 seconds.
| Possible Causes |
| AUTOMATIC DAY/NIGHT MIRROR |
| HANDS FREE MODULE |
Diagnostic Test
1.CHECK FOR ACTIVE DTCSDid this DTC reset?
Yes
- Go To 2
No
- 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.
2.CHECK THE VOLTAGE OF THE (X730) VOICE RECOGNITION/PHONE SWITCH SIGNAL
NOTE: The sensor voltage should switch from above 4.7 volts when the jumper is not connected to below 0.6 volts when the jumper is connected.
Does the sensor voltage switch from above 4.7 volts to below 0.6 volt as described?
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
- 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).