Circuit/System Testing

Ignition ON
Verify that DTC C0287 4B is not set.
- If the DTC is set
  Perform the Vehicle Yaw Sensor Learn .
- If the DTC is not set
Verify the B119 Multi-axis Acceleration Sensor is installed correctly.
- If loose or incorrect installation
  Correct the installation of the component.
- If installed correctly
Ignition OFF, scan tool disconnected and all vehicle systems OFF, disconnect the harness connector at the B119 Multi-axis Acceleration Sensor. It may take up to 2 minutes for all vehicle systems to power down.
Test for less than 10 Ω between the ground circuit terminal 6 and ground.
- If 10 Ω or greater
1. Ignition OFF.
2. Test for less than 2 Ω in the ground circuit end to end.
  - If 2 Ω or greater, repair the open/high resistance in the circuit.
  - If less than 2 Ω, repair the open/high resistance in the ground connection.
- If less than 10 Ω
Ignition ON.
Verify a test lamp illuminates between the 12 V reference circuit terminal 5 and ground.
- If the test lamp does not illuminate
1. Ignition OFF, disconnect the harness connector at the B99 Steering Wheel Angle Sensor and the K17 Electronic Brake Control Module.
2. Test for infinite resistance between the 12 V reference 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 Ω in the 12 V reference circuit end to end.
  - If 2 Ω or greater, repair the open/high resistance in the circuit.
  - If less than 2 Ω, replace the K17 Electronic Brake Control Module.
- If the test lamp illuminates
Replace the B119 Multi-axis Acceleration Sensor.