Circuit/System Testing
- Ignition ON.
- Verify DTC C0710 4B or C0710 5A is not set.
- If either DTC is set
Perform the Steering Angle Sensor Centering .
- If either DTC is not set
- If either DTC is set
- Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the B99 steering wheel angle 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
- Ignition OFF.
- 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 ignition circuit terminal 5 and ground.
- If the test lamp does not illuminate
- Ignition OFF, disconnect the harness connector at the K17 electronic brake control module.
- 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
- Test for less than 2 Ω in the ignition 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 B99 steering wheel angle sensor.
- Verify the DTC does not set while operating the vehicle under the Conditions for Running the DTC.
- If the DTC sets
Replace the K17 electronic brake control module.
- If the DTC does not set
- If the DTC sets
- All OK.
NOTE:
With the B99 steering wheel angle sensor disconnected, the electronic brake control module should supply ignition voltage to the sensor for 3 - 5 seconds once the ignition is turned ON.