Chevrolet Trax: DTC C1589: Multi-axis acceleration sensor/steering wheel angle sensor supply voltage circuit performance - bias level out of range

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 C1589 1A

Multi-axis Acceleration Sensor/Steering Wheel Angle Sensor Supply Voltage Circuit Performance - Bias Level Out of Range

Diagnostic Fault Information

Circuit/System Description

The lateral accelerometer, and the yaw rate sensors are combined into one sensor called the multi-axis acceleration sensor, which is internal to the inflatable restraint sensing and diagnostic module. The electronic brake control module supplies ignition voltage to the steering wheel angle sensor. The steering wheel angle sensor communicates with the electronic brake control module via serial data. The module activates the stability control function depending on multi-axis acceleration sensor and steering wheel angle sensor input.

Conditions for Running the DTC

• Ignition ON.
• The ignition voltage is greater than 10 V.

Conditions for Setting the DTC

The electronic brake control module has detected a short to ground or open on the steering wheel angle sensor ignition circuit.

Action Taken When the DTC Sets

• The ABS indicator turns ON.
• The red brake indicator turns ON.
• The traction/stability control indicator turns ON.
• A message may be displayed on the driver information center.
• The electronic brake control module disables the ABS, the traction control system and the electronic stability control for the duration of the drive cycle.

Conditions for Clearing the DTC

• The condition for setting the DTC is no longer present.
• The history DTC will clear after 40 consecutive fault-free drive cycles have occurred.

Reference Information

Schematic Reference

Antilock Brake System Schematics (Encore), Antilock Brake System Schematics (Trax)

Connector End View Reference

WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS - INDEX - ENCORE WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS - INDEX - (Trax)

Description and Operation

ABS Description and Operation

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 Testing

1. Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the B99 Steering Wheel Angle Sensor. It may take up to 2 min for all vehicle systems to power down.
2. Test for less than 10 ohms between the ground circuit terminal 6 and ground.

If 10 ohms or greater

1. Ignition OFF.
2. Test for less than 2 ohms in the ground circuit end to end.

• If 2 ohms or greater, repair the open/high resistance in the circuit.
• If less than 2 ohms, repair the open/high resistance in the ground connection.

If less than 10 ohms

3. Ignition ON.
4. Verify a test lamp illuminates between the ignition circuit terminal 5 and ground.

If the test lamp does not illuminate

1. Ignition OFF, disconnect the harness connector at the K17 Electronic Brake Control Module.
2. Test for infinite resistance between the ignition circuit and ground.

• If less than infinite resistance, repair the short to ground on the circuit.
• If infinite resistance

3. Test for less than 2 ohms in the ignition circuit end to end.

• If 2 ohms or greater, repair the open/high resistance in the circuit.
• If less than 2 ohms, replace the K17 Electronic Brake Control Module.

If the test lamp illuminates

5. Replace the B99 Steering Wheel Angle Sensor.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

• Steering Angle Sensor Replacement
• Control Module References for electronic brake control module replacement, programming and setup

READ NEXT: