C2141

DTC C2141-C2144

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 C2141
- Tire Pressure Sensor 1 Performance

DTC C2142
- Tire Pressure Sensor 2 Performance

DTC C2143
- Tire Pressure Sensor 3 Performance

DTC C2144
- Tire Pressure Sensor 4 Performance

Circuit/System Description

The tire pressure monitor (TPM) system has a radio frequency (RF) transmitting pressure sensor in each wheel/tire assembly. The module receives and translates the data contained in the tire pressure sensor RF transmissions into sensor presence, sensor mode, and tire pressure.

The receiver module 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 module memory. Once all 4 IDs have been learned, the module continuously compares IDs received in 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 tire pressure sensor battery is depleted.

Action Taken When the DTC Sets

The Tire Pressure Warning Light is illuminated.

Conditions for Clearing the DTC

A current DTC will clear when the signal transmission is resumed.

Diagnostic Aids

If the displayed tire pressure data did not change within 3 minutes, refer to DTC C2121-C2124 (C2121).

Reference Information
Description and Operation

Tire Pressure Monitor Description and Operation (Description and Operation)
Schematic Reference

Tire Pressure Monitoring System Schematics ([1][2]Electrical Diagrams)
Connector End View Reference

Component Connector End Views (Connector Views)
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


Circuit/System Testing

1. With the scan tool, verify tire pressure sensors ID and locations:

1. Rapidly reduce the tire pressure for each wheel at least 6 psi within 30 seconds. It may take up to 3 minutes for the display to change.
2. Record the sensor ID and location.

• If any of the parameters listed above did not change or are not displayed, replace the suspect tire pressure sensor.

2. Perform the tire pressure sensor learn procedure.
3. Perform the tire pressure system configuration procedure. Verify all 4 sensor locations, IDs, and tire pressures match what the scan tool displays.

• If the scan tool data does not match, replace the Tire Pressure Control Module.

Repair Instructions

Perform the Diagnostic Repair Verification (Verification Tests) after completing the diagnostic procedure.

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