Service Information

Captiva

DTC C0287

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 C0287 00: Longitudinal Accelerometer Circuit

DTC C0287 11: Longitudinal Accelerometer Circuit High Input

DTC C0287 3B: Longitudinal Accelerometer Circuit Internal Self-Test Malfunction

DTC C0287 5A: Longitudinal Accelerometer Circuit Not Plausible

Diagnostic Fault Information

Circuit	Short to Ground	Open/High Resistance	Short to Voltage	Signal Performance
12 V Reference	C0186 00, C0196 00 U2142 00	U2142 00, U2143 00	-	C0287 00, C0287 11, C0287 3B, C0287 5A
Low Reference	C0186 00, C0196 00 U2142 00	U2142 00, U2143 00	C0186 00, C0196 00 U2142 00	C0287 00, C0287 11, C0287 3B, C0287 5A

Circuit/System Description

The yaw rate, lateral acceleration, and longitudinal acceleration sensors are combined into one multi-axis acceleration sensor, external to the electronic brake control module. The electronic brake control module supplies 12 V reference circuit to the multi-axis acceleration sensor, along with a ground path for the multi-axis acceleration sensor low reference circuit, and both circuits are shared with the steering wheel angle sensor

The vehicle stability enhancement system uses the longitudinal input when calculating the desired yaw rate. The multi-axis acceleration sensor produces signal output voltage that corresponds to the vehicle rotation around its vertical axis. The multi-axis acceleration sensor communicates with the electronic brake control module via serial data.

Conditions for Running the DTC

The ignition is ON.

Conditions for Setting the DTC

•	The multi-axis acceleration sensor fails an internal self test.

•	A correlation error between the multi-axis acceleration sensor and the steering wheel angle sensor.

•	The electronic brake control module detects a fault in the multi-axis acceleration sensor signal voltage output.

Action Taken When the DTC Sets

•	The ABS indicator illuminates.

•	The Traction-Off indicator illuminates.

•	A driver information centre message may be displayed.

•	The electronic brake control module disables electronic stability control for the duration of the ignition cycle.

Conditions for Clearing the DTC

•	The DTC is cleared with a scan tool.

•	The condition for setting the DTC is no longer present.

•	The electronic brake control module automatically clears the history DTC when a current DTC is not detected in 100 consecutive drive cycles.

Diagnostic Aids

An incorrectly mounted multi-axis acceleration sensor may set this DTC.

Reference Information

Schematic Reference

Antilock Brake System Schematics

Connector End View Reference

Component Connector End Views

Electrical Information Reference

•	Circuit Testing

•	Connector Repairs

•	Testing for Intermittent Conditions and Poor Connections

•	Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

With scan tool installed, clear the DTCs then drive the vehicle in a straight line at a speed greater than 15 km/h (10 mph). If the DTC did not set as a current DTC see diagnostic aids.

Circuit/System Testing

Verify DTC U1500, U2142, U2143, C0186, C0196 or C0460 is not set.
If any of the DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle .
Verify the B119 Multi-axis Acceleration Sensor is mounted properly.

⇒	If not mounted properly, refer Vehicle Yaw Sensor Replacement .

Ignition OFF, disconnect the harness connector at the B119 multi-axis acceleration sensor.
Ignition OFF and all vehicle systems OFF. It may take up to 2 minutes for all vehicle systems to power down. Test for less than 10Ω between the low reference circuit terminal 1 and ground.

⇒	If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the K17 electronic brake control module.

Ignition ON, test for greater than 11 V between the 12 V reference circuit terminal 4 and ground.

⇒	If less than the specified value, test the 12 V reference circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K17 electronic brake control module.

If all circuits test normal, replace the B119 multi-axis acceleration sensor.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

•	Vehicle Yaw Sensor Replacement

•	Control Module References for electronic brake control module replacement, programming and setup