For 1990-2009 cars only
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 C0774 00: Low Tire Pressure System PerformanceCircuit Description
The EBCM receives a serial data message from the tire pressure monitor (TPM) system when low tire pressure is detected. The EBCM will adjust the responses of vehicle stability enhancement system (VSES) to have optimal vehicle control when active.
Conditions for Running the DTC
The EBCM received a serial data message that low tire pressure is detected.
Conditions for Setting the DTC
VSES is active.
Action Taken When the DTC Sets
A DIC message and/or a warning message may be displayed.
Conditions for Clearing the DTC
| • | A current DTC will go to history after the VSES event is over. |
| • | A history DTC will clear after 100 consecutive malfunction-free ignition cycles. |
Diagnostic Aids
| • | This DTC is only current for the duration of the VSES event, and then it will go to history. |
| • | This DTC is not an indication of an ABS/VSES malfunction. |
Reference Information
Schematic Reference
Antilock Brake System Schematics
Connector End View Reference
Description and Operation
Electrical Information Reference
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
Verify that the TPM sytem is functioning properly. Refer to Diagnostic Starting Point - Tire Pressure Monitoring.
