Circuit/System Testing

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 5 Ω between the ground circuit terminal 6 and ground.
- If 5 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 5 Ω
Ignition ON.
Verify that 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, ignition ON.
2. Verify that a test lamp illuminates between the 12 V reference circuit terminal 5 and ground.
  - If the test lamp illuminates, replace the B99 Steering Wheel Angle Sensor.
  - If the test lamp does not illuminate
3. Ignition OFF, disconnect the harness connector at the K17 Electronic Brake Control Module.
4. 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
5. 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.