Diagnostic Instructions
| • | Perform the Diagnostic System Check - Vehicle prior to using the diagnostic procedure. |
| • | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
| • | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
DTC Descriptors
DTC C0775: Air Pressure WarningDTC C0776: Air Pressure Warning
DTC C0777: Air Pressure Warning
DTC C0778: Air Pressure Warning
Circuit/System Description
TPMS Receiver Module receives the vehicle speed signal from the transmission control module (TCM) and also receives the information of the tire inflation pressure from the transmitters and the transmitter’s condition. With this information, the TPMS decides if warning lamp indication is needed or not.
Conditions for Running the DTC
Vehicle speed is above 32 km/h (20 mph).
Conditions for Setting the DTC
The tire inflation pressure is lower than 179 Kpa (26 psi)
Action Taken When the DTC Sets
TPMS warning lamp blinks for 75 seconds.
Conditions for Clearing the DTC
The conditions that set the DTC are no longer present, the DTC can be cleared by scan tool.
Reference Information
Schematic Reference
Tire Pressure Monitoring System Schematics
Connector End View Reference
Electrical Information Reference
Scan Tool Reference
Electronic Brake Control Module Scan Tool Information
Circuit Verification
Inflate the tire to the proper specification.
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Tire Pressure Monitor System Configuration for TPM module setup, and programming
