C0775

DTC C0775

DTC Descriptor

DTC C0775

Low Tire Pressure System Sensors Not Learned

Diagnostic Fault Information

Important: Always perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Diagnostic System Check - Vehicle

Circuit/System Description

The body control module (BCM) receives a radio frequency (RF) transmission from each tire pressure sensor. Each sensors RF transmission contains its own unique identification (ID) code that must be learned into the BCM memory. Once all 4 IDs have been learned and vehicle speed is 25 mph, or greater, the BCM continuously compares IDs in received transmission to its learned IDs to determine if all 4 sensors are present.

Conditions for Running the DTC

The ignition is ON.

Conditions for Setting the DTC

The BCM has not undergone the tire pressure sensor learn procedure.

Action Taken When the DTC Sets

The driver information center (DIC) displays the SERVICE TIRE MONITOR warring message.

Conditions for Clearing the DTC

* A current DTC will clear when the BCM has undergone the sensor learn procedure.
* The electronic brake control module (EBCM) automatically clears the history DTC when a current DTC is not detected in 100 consecutive drive cycles.

Diagnostic Aids

A newly replaced BCM will set DTC C0775 on its initial ignition ON cycle.

Circuit/System Testing

Perform the tire pressure sensor learn procedure.

Repair Instructions

Important: Always perform the Diagnostic Repair Verification after completing the diagnostic procedure. Verification Tests

* Control Module References for BCM replacement, setup, and programming.
* Tire Pressure Sensor Learn