C0775

DTC C0775

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (Diagnostic System Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Strategy Based Diagnosis) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (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 (Circuit Testing)
* Connector Repairs (Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (Wiring Repairs)

Scan Tool Reference

Control Module References (Programming and Relearning) 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 (Verification Tests) after completing the diagnostic procedure.

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