Volt

DTC C0775

If the body control module (BCM) has been reprogrammed or replaced and the tyre pressure sensor autolearn process has not occurred, the tyre pressure monitor system indicator icon on the instrument cluster will flash for 1 min. and then remain illuminated after the power switch is cycled ON and the instrument cluster bulb check is complete. If equipped, the driver information center will also display a service tire monitor type message. Under these circumstances, DTC C0775 will be set in the BCM and the tyre pressure sensor autolearn process will need to be performed for the system to function correctly. The remote control door lock receiver receives and then sends the tyre pressure and temperature data to the body control module (BCM). The tyre pressure indicator module receives and then sends sensor ID and location data to the BCM. The tyre pressure indicator module determines tyre side to side position by the rotating direction of the tyres and the front to rear position by the strength of the signals received. To complete the tyre pressure indicator module autolearn process it is required that the vehicle be driven for at least 9 minutes above 40 km/h (25 MPH).

Vehicle ON or Vehicle in Service Mode.

The body control module (BCM) has not received tyre sensor ID and location information from the tyre pressure indicator module.

A current DTC will clear when the BCM has received tyre sensor ID and location information from the tyre pressure indicator module and at least 1 power switch cycle has occurred.

Schematic Reference

Tire Pressure Monitoring System Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Tyre Pressure Monitor Description and Operation

Electrical Information Reference

Scan Tool Reference

Control Module References for scan tool information

1. Drive the vehicle for at least 9 minutes above 40 km/h (25 MPH).
2. Verify DTC C0775 is not set.

⇒	If the DTC is set

2.1.	Replace the K65 tyre pressure indicator module.

2.2.	Drive the vehicle for at least 9 minutes above 40 km/h (25 MPH).

2.3.	Verify DTC C0775 is not set.

⇒	If the DTC is set, replace the K9 body control module.

⇓	If the DTC is not set

2.4.

All OK.

⇓	If the DTC is not set

3. All OK.

Perform the Diagnostic Repair Verification after completing the repair.

Control Module References for tyre pressure indicator module and BCM replacement, programming, and setup.