Steering Wheel Downshift (-) Switch Test
  1. Remove steering wheel downshift (−) switch connector from its holder, and disconnect the connector.
  1. Check the steering wheel downshift (−) switch for continuity between the switch connector terminals while pressing the switch and when the switch is released.
    There should be continuity while pressing the switch, and no continuity when the switch is released.
  1. Replace the steering wheel downshift (−) switch if the switch works incorrectly.
  1. Replace the steering switch harness if the switch is OK.