Test C: Single Mirror Does Not Operate With Switch Logic
NOTE:
Perform all voltage and resistance tests using a Digital Volt-Ohm Meter (DVOM) with a minimum 10-megohm input impedance, unless stated otherwise in test procedure. Use ohmmeter to isolate wiring harness shorts or opens.
- Turn ignition switch to LOCK position. Remove appropriate door trim panel. See FRONT DOOR TRIM PANEL
under REMOVAL & INSTALLATION. Disconnect malfunctioning exterior power mirror 8-pin harness connector, located under door trim panel. See Figure
. While operating power mirror control switch to specified position, measure voltage and resistance between ground and inoperative power mirror harness connector terminals as specified. See MIRROR LOGIC VOLTAGE/RESISTANCE TEST
table. See Figure
. If voltage/resistance readings are not as specified, go to next step. If voltage/resistance readings are as specified, replace inoperative power rear view mirror motor. See POWER MIRROR GLASS & MOTOR
under REMOVAL & INSTALLATION. See WIRING DIAGRAMS
. After repair, test system for normal operation.MIRROR LOGIC VOLTAGE/RESISTANCE TEST
Power Mirror Connector Terminal No. (Wire Color) Power Mirror Control Switch Position Measurement Reading Driver's Side Mirror Connector C520 (1) 5 (Yellow) Left & Up Less Than 5 Ohms 5 (Yellow) Right & Down Greater Than 10 Volts 6 (Dark Blue) Up Greater Than 10 Volts 6 (Dark Blue) Down Less Than 5 Ohms 7 (Red) Left Greater Than 10 Volts 7 (Red) Right Less Than 5 Ohms Passenger's Side Mirror Connector C601 (1) 5 (Yellow) Left & Up Less Than 5 Ohms 5 (Yellow) Right & Down Greater Than 10 Volts 6 (Violet) Up Greater Than 10 Volts 6 (Violet) Down Less Than 5 Ohms 7 (White) Left Greater Than 10 Volts 7 (White) Right Less Than 5 Ohms (1) For power mirror harness connector terminal identification, see Figure . - Remove power mirror control switch leaving switch connected to harness connector. See POWER MIRROR CONTROL SWITCH
under REMOVAL & INSTALLATION. While operating switch in specified position, backprobe and measure voltage/resistance at power mirror control switch harness connector C527 specified terminal. See CONTROL SWITCH LOGIC VOLTAGE TEST
table. See Figure
. If voltage/resistance readings are not as specified, replace power mirror control switch. If voltage/resistance readings are as specified, repair appropriate circuit wire(s) between power mirror control switch and appropriate power mirror. See WIRING DIAGRAMS
. After repair, test system for normal operation.CONTROL SWITCH LOGIC VOLTAGE TEST
Power Mirror Control Switch Connector Terminal No. (Wire Color) (1) Power Mirror Control Switch Position Measurement Reading 6 (Yellow) Left & Up Less Than 5 Ohms 6 (Yellow) Right & Down Greater Than 10 Volts Driver's Side 3 (Dark Blue) Up Greater Than 10 Volts 3 (Dark Blue) Down Less Than 5 Ohms 4 (Red) Left Greater Than 10 Volts 4 (Red) Right Less Than 5 Ohms Passenger's Side 2 (Violet) Up Greater Than 10 Volts 2 (Violet) Down Less Than 5 Ohms 5 (White) Left Greater Than 10 Volts 5 (White) Right Less Than 5 Ohms (1) For power mirror control switch harness connector terminal identification, see Figure .