Test C: Switch Logic Malfunction
- Remove door trim panel on side of vehicle with malfunctioning mirror. See REMOVAL & INSTALLATION
. Disconnect malfunctioning mirror harness connector. Measure voltage or resistance between ground and appropriate terminal of mirror harness connector with mirror control switch in appropriate position. See MIRROR CONTROL CIRCUIT SPECIFICATIONS
table. If voltage and/or resistance readings are not as specified, go to next step. If voltage and/or resistance readings are as specified, replace appropriate mirror motor.MIRROR CONTROL CIRCUIT SPECIFICATIONS
Terminal Switch Position Value Driver's Mirror Red Wire Driver's Mirror Left More Than 10 Volts Red Wire Driver's Mirror Right 5 Ohms Or Less Dark Blue Wire Driver's Mirror Up More Than 10 Volts Dark Blue Wire Driver's Mirror Down 5 Ohms Or Less Yellow Wire Driver's Mirror Left Or Up 5 Ohms Or Less Yellow Wire Driver's Mirror Right Or Down More Than 10 Volts Passenger's Mirror Dark Green Wire Passenger's Mirror Left More Than 10 Volts Dark Green Wire Passenger's Mirror Right 5 Ohms Or Less Violet Wire Passenger's Mirror Up More Than 10 Volts Violet Wire Passenger's Mirror Down 5 Ohms Or Less Yellow Wire Passenger's Mirror Left Or Up 5 Ohms Or Less Yellow Wire Passenger's Mirror Right Or Down More Than 10 Volts - Remove mirror control switch to access harness connector. See REMOVAL & INSTALLATION
. Do not disconnect mirror control switch harness connector. Backprobing mirror control switch harness connector, measure voltage or resistance between ground and appropriate terminal of mirror control switch harness connector with mirror control switch in appropriate position. See REAR VIEW MIRROR CONTROL CIRCUIT LOGIC TESTING
table. If voltage and/or resistance is not as specified, repair appropriate circuit. See WIRING DIAGRAMS
. If voltage and/or resistance is as specified, replace mirror control switch.REAR VIEW MIRROR CONTROL CIRCUIT LOGIC TESTING
Switch Position Terminal No. Wire Color Result Left/Up 6 Yellow (1) Right/Down 6 Yellow (2) Driver's Side Selected Left 4 Red (2) Right 4 Red (1) Up 3 Dark Blue (2) Down 3 Dark Blue (1) Passenger's Side Selected Left 8 Dark Green (2) Right 8 Dark Green (1) Up 7 Violet (2) Down 7 Violet (1) (1) Resistance should be 5 ohms or less. (2) Voltage should be more than 10 volts.