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Switch Test: Riviera

  1. Remove mirror selector switch from driver's armrest and leave switch connected to wiring harness. Connect a test light to ground and check for 12 volts at Orange wire. If test light glows, connect test light between Orange wire and Black wire. If test light does not glow, check Orange and Black wire circuits.
  2. Operate right side mirror and check for 12 volts at Orange and Yellow/Black wires. All other wires should have zero volts. Operate left side mirror and check for 12 volts at Orange and Yellow wires. All other wires should have zero volts.