C0775

DTC C0775

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions provides an overview of each diagnostic category.



DTC Descriptor
DTC C0775
- Low Tire Pressure System Sensors Not Learned




Circuit/System Description

The lift gate module (LGM) receives a radio frequency (RF) transmission from each tire pressure sensor. Each sensor RF transmission contains its own unique identification (ID) code that must be learned into the LGM memory. Once all 4 IDs have been learned and vehicle speed is 25 mph or greater, the LGM 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 LGM 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 warning message or the IPC icon illuminates.


Conditions for Clearing the DTC

A current DTC will clear when the LGM has undergone the sensor learn procedure.


Diagnostic Aids

A newly replaced LGM will set DTC C0775 on its initial ignition ON cycle. Tire pressure sensor learn procedure must be performed.


Reference Information
Description and Operation

Tire Pressure Monitor Description and Operation (Description and Operation)
Electrical Information Reference

* Circuit Testing
* Connector Repairs
* Testing for Intermittent Conditions and Poor Connections
* Wiring Repairs

Scan Tool Reference

Control Module References for Scan Tool Information
Special Tools Required

J-46079 Tire Pressure Monitor Diagnostic Tool


Circuit/System Verification

Verify that the DTC C0775 is not set.

If the DTC is set, program/setup the LGM. If the DTC resets, replace the LGM.



Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

* Tire Pressure Sensor Learn (Programming and Relearning)
* Control Module References for LGM replacement, setup, and programming