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.

Determine problem symptom. See PROBLEM SYMPTOM INDEX table.

PROBLEM SYMPTOM INDEX

Symptom

Suspected Area ⁽¹⁾

Electro Chromic Mirror System

Electro Chromic Inner Mirror Does Not Operate

⁽²⁾⁽³⁾⁽⁴⁾

Electro Chromic Outer Mirror Does Not Operate

⁽²⁾⁽⁵⁾⁽³⁾⁽⁴⁾

Power Mirror Control System

Mirror Does Not Operate

⁽⁶⁾⁽⁷⁾⁽⁸⁾⁽⁴⁾

Mirror Operates Abnormally

⁽⁷⁾⁽⁸⁾⁽⁴⁾

⁽¹⁾	Perform test procedures in order listed under suspected area.

⁽²⁾	Check the ECU-IG fuse located in the instrument panel junction block.

⁽³⁾	Check the electro chromic inner mirror. See ELECTRO CHROMIC INNER MIRROR under COMPONENT TESTS and ELECTRO CHROMIC INNER MIRROR & COMPASS CIRCUIT under CIRCUIT TESTS.

⁽⁴⁾	Check the wiring harness.

⁽⁵⁾	Check the electro chromic outer mirror. See ELECTRO CHROMIC OUTER MIRROR under COMPONENT TESTS.

⁽⁶⁾	Check the RADIO NO. 2 fuse located in the instrument panel junction block.

⁽⁷⁾	Check the mirror switch. See POWER MIRROR CONTROL SWITCH under COMPONENT TESTS.

⁽⁸⁾	Check the mirror motor. See POWER MIRROR MOTOR 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.