DESCRIPTION & OPERATION
| WARNING | Vehicles are equipped with air bag supplemental restraint system. Before attempting any repairs involving steering column, instrument panel or related components, see SERVICE PRECAUTIONS and DISABLING & ACTIVATING AIR BAG SYSTEM in appropriate AIR BAG RESTRAINT SYSTEMS article. |
| CAUTION | When battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See appropriate COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION before disconnecting battery. |
SYSTEM OPERATION CHECK
- Trouble shooting of a power mirror system complaint begins with verification of the customer problem. If problem occurs, go to step 3 . If problem does not occur, go to next step.
- If problem does not occur, review conditions under which problem occurred for customer and try to duplicate those conditions. For example, if the problem occurs on rainy days or during high humidity conditions, sprinkle water onto vehicle and see if malfunction occurs. DO NOT sprinkle water directly into engine compartment or onto electronic components. Visually inspect for signs of mechanical and electrical damage. Inspect for blown fuses and damaged relays. Inspect for loose or corroded connections, damaged wiring harnesses and/or switches. Check for a broken or partially broken wire inside insulation, which could cause system malfunction but prove good in a continuity/voltage check with system disconnected. Ensure any aftermarket electronic equipment is properly installed. If fault is found, repair as necessary.
- Inspect the multiplex communication system and confirm that there is no trouble by the basic inspection and DTC check. See PRE-CHECK under SELF-DIAGNOSTIC in «MULTIPLEX COMMUNICATION SYSTEM»(ref-154087) article in COMMUNICATION DEVICES.
- Determine problem symptom. See «PROBLEM SYMPTOM INDEX»(ref-154820-S06557658392003052800000) table. PROBLEM SYMPTOM INDEX Symptom Suspected Area (1) Both Right & Left Mirrors Do Not Operate (2) (3) Only One Mirror Does Not Operate (4) (3) (1) Perform test procedures in order listed under suspected area. (2) Check the mirror switch. See «POWER MIRROR SWITCH»(ref-154820-S19688719902003052800000) under COMPONENT TESTS. (3) Check the wiring harness. (4) Check the mirror motor. See «POWER MIRROR MOTOR»(ref-154820-S27299743822003052800000) under COMPONENT TESTS.
- After repairs have been completed, confirm that problem has been eliminated. Operate the system under same conditions recorded for original complaint. If problem is no longer present, repair has corrected problem. If problem is still present, further diagnosis and repair is required.
