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 C0875 00: Device Voltage Reference Input 2 CircuitDiagnostic Fault Information
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
Yaw and Lateral Acceleration Sensor Signal | C0875 00 | -- | C0875 00 | -- |
Yaw and Lateral Acceleration Sensor 5-Volt Reference | C0875 00 | C0875 00 | C0875 00 | -- |
Yaw and Lateral Acceleration Sensor Ground | -- | C0875 00 | -- | -- |
Circuit Description
The yaw rate sensor reference voltage is monitored for an over or under voltage condition.
Conditions for Running the DTC
| • | Ignition ON. |
| • | The vehicle speed is greater than 40 km/h (25 mph). |
Conditions for Setting the DTC
A malfunction is detected if the supply voltage is above 2.9 volts or below 2.1 volts for more than 200 milliseconds.
Action Taken When the DTC Sets
| • | The traction control system (TCS) and vehicle stability enhancement system (VSES) are disabled. |
| • | The SERVICE VEHICLE SOON and Stability Off lamp indicators are illuminated. |
Conditions for Clearing the DTC
| • | The condition for setting the DTC is no longer present. |
| • | The electronic brake control module (EBCM) clears the history DTC when a current DTC is not detected in 100 consecutive drive cycles. |
Diagnostic Aids
The EBCM detects a short to B+, short to ground, or an open/high resistance in the yaw rate sensor supply voltage circuit.
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 Testing
- Ignition OFF, disconnect the EBCM harness connector at the Yaw and Lateral Acceleration Sensor.
- Ignition OFF, with a DMM test for less than 5.0 ohms between the Yaw and Lateral Acceleration Sensor low reference circuit terminal 6 and ground.
- Ignition ON, with a DMM test for 2.1-2.9 volts between the Yaw and Lateral Acceleration Sensor 5-volt reference circuit terminal 1 and ground.
- With the DMM, verify the Yaw and Lateral Acceleration Sensor signal circuit terminal 4 range is less than 2.1 volts.
- Install a 3A fused jumper wire between the Yaw and Lateral Acceleration Sensor signal circuit terminal 2 and the Yaw and Lateral Acceleration Sensor 5-volt reference circuit terminal 1. With a DMM verify the voltage value is greater than 2.9 volts.
- If all circuits test normal, test or replace the Yaw and Lateral Acceleration Sensor.
| ⇒ | If greater than the specified range, with the DMM test the low reference terminal 6 circuit for an open/high resistance. If the circuit tests normal, replace the EBCM. |
| ⇒ | If less than the specified range, with the DMM test the 5-volt reference circuit terminal 1 for a short to ground or an open/high resistance. If the circuit tests normal, replace the EBCM. |
| ⇒ | If greater than the specified range, with the DMM test the 5-volt reference circuit terminal 1 for a short to voltage. If the circuit tests normal, replace the EBCM. |
| ⇒ | If greater than the specified value, test the signal circuit terminal 2 for a short to voltage. If the circuit tests normal, replace the EBCM. |
| ⇒ | If less than the specified value, test the signal circuit terminal 2 for a short to ground or an open/high resistance. If the circuit tests normal, replace the EBCM. |
Component Testing
- Install a 3A fused jumper wire between the Yaw and Lateral Acceleration Sensor 5-volt reference terminal 1 and 5 volts. Install a jumper wire between the low reference terminal 6 and ground.
- Sweep the sensor through the entire range while monitoring the resistance between the signal circuit terminal 4 and the low reference circuit terminal 6. The voltage should vary between 2.1-2.9 volts without any spikes or dropouts.
| ⇒ | If not within the specified range or is erratic, replace the Yaw and Lateral Acceleration Sensor. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
| • | Control Module References for EBCM replacement, setup, and programming |
