One Mirror Does Not Operate In Up/Down Positions

(LEFT/RIGHT POSITIONS OPERATE NORMALLY)

1. If left mirror does not operate, place mirror select switch in left position. Using a test light, backprobe mirror control switch connected connector, between 4-pin connector terminals "C" (Light Green wire) and "D" (Yellow wire). See MIRROR CONTROL SWITCH CONNECTOR TERMINALS  table under ONE MIRROR DOES NOT OPERATE IN UP/DOWN OR LEFT/RIGHT POSITION. Toggle mirror position switch to up position, and go to step 3).
2. If right mirror does not operate, place mirror select switch in right position. Using a test light, backprobe mirror control switch connected connector, between terminals "A" (Brown/White wire) and "B" (Light Blue/White wire). See MIRROR CONTROL SWITCH CONNECTOR TERMINALS  table under ONE MIRROR DOES NOT OPERATE IN UP/DOWN OR LEFT/RIGHT POSITION. Toggle mirror position switch to up position, and go to next step.
3. If test light does not come on, check mirror control switch connector. If connector is okay, replace mirror control switch. If test light comes on, backprobe suspect outside mirror connector between terminals "C" and "D". See OUTSIDE MIRROR CONNECTOR TERMINALS  table under ONE MIRROR DOES NOT OPERATE IN UP/DOWN OR LEFT/RIGHT POSITION. Toggle mirror position switch to up position. If test light does not come on, go to step 5). If test light comes on, check suspect outside mirror connector. If connector is okay, replace suspect outside mirror drive unit.
4. Check for an open in circuit between left outside mirror connector terminal "D" (Yellow wire) and mirror control switch or between terminal "C" (Light Green wire) and mirror control switch. If left outside mirror is okay, check for an open in circuit between right outside mirror connector terminal "A" (Dark Blue wire) and mirror control switch connector terminal "A" or between right outside mirror terminal "B" (Light Green wire) and mirror control switch connector terminal "B". Repair open in circuit as necessary.