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Circuit/System Testing

NOTE:

Please perform the Circuit/System Verification before performing the Circuit/System Testing.

  1. Ignition OFF and all vehicle systems OFF. It may take up to 2 min for all vehicle systems to power down.
  2. Disconnect the harness connector X2 at the K43 Power Steering Control Module.
  3. Test for less than 5 Ω between the ground circuit terminal B and ground.
    • If 5 Ω or greater 
    1. Ignition OFF, disconnect the harness connector X2 at the K43 Power Steering Control Module.
    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 
  4. Ignition ON.
  5. Verify a test lamp illuminates between the B+ circuit terminal A and ground.
    • If the test lamp does not illuminate and the circuit fuse is good 
    1. Ignition OFF.
    2. Test for less than 2 Ω in the B+ circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, verify the fuse is OK and there is voltage at the fuse.
    • If the test lamp does not illuminate and the circuit fuse is open 
    1. Ignition OFF.
    2. Test for infinite resistance between the B+ circuit and ground.
      • If less than infinite resistance, repair the short to ground on the circuit.
      • If infinite resistance, replace the steering column.
    • If the test lamp illuminates 
  6. Replace the steering column.
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