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Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the electronic park brake module(EPB).
  2. Ignition OFF, test for less than 3 Ω between the ground circuit terminal H and ground.
    • If greater than the specified value, test the ground circuit for an open/high resistance.
  3. Ignition ON, verify a test lamp illuminates between the B+ circuit terminal A and ground.
    • If the test lamp does not illuminate, test the circuit for an open/high resistance.
  4. If all circuits test normal, test or replace the EPB.
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