One Mirror Does Not Operate In Up/Down Positions: Roadmaster
- On left mirror, backprobe with test light between power mirror switch connector terminals "E" (Light Green wire) and "C" (Yellow wire). On right mirror, backprobe with test light between power mirror switch connector terminals "B" (Light Blue wire) and "C" (Yellow wire). Move power mirror switch to up position. If test light glows, go to next step. If test light does not glow, check for poor connection at power mirror switch. If connections are okay, replace power mirror switch.
- On left mirror, backprobe with test light between left power mirror connector terminals "C" (Light Green wire) and "D" (Yellow wire). On right mirror, backprobe with test light between right power mirror connector terminals "C" (Purple/White wire) and "D" (Yellow wire). Move power mirror switch to up position. If test light glows, check for poor connections at inoperative power mirror. If connections are okay, replace power mirror drive unit power pack. If test light does not glow, repair open in Yellow, Light Green or Purple/White wire between power mirror switch and inoperative power mirror.