Switch Test

Calais, Grand Am & Somerset

1) Test circuit fuse by operating horn. If neither mirror

operates, check for battery voltage at center console outside mirror

switch by connecting a test lamp between Orange wire and ground. If

test lamp lights, connect test lamp between Orange wire and Black

wire. If test lamp does not light, check Orange and Black wire

circuits.

2) If left mirror does not operate: Place mirror selector

switch in left mirror position. Connect test lamp to Yellow and Lt.

Green/Black terminals of outside mirror switch. Check that test lamp

lights when mirror control switch is in up and down position.

3) Connect test lamp to Lt. Blue and White/Black terminals

of outside mirror switch. Check that test lamp lights when mirror

control switch is in left and right positions. If test lamp lights

but mirror does not turn, check wiring and motor. If test lamp does

not light when switches are in position to energize its terminals,

install a new outside mirror switch.

4) If right mirror does not operate: Place mirror selector

switch in right mirror position. Connect test lamp to Yellow and Lt.

Green terminals of outside mirror switch. Check that test lamp lights

when mirror control switch is in up and down position.

5) Connect test lamp to Lt. Blue/Black and White terminals

of outside mirror switch. Check that test lamp lights when mirror

control switch is in left and right position. If test lamp lights but

mirror does not turn, check wiring and motor. If test lamp does not

light when switches are in position to energize its terminals,

install a new outside mirror switch.

Camaro & Firebird

1) Operate right side mirror and check voltage at right side

mirror switch as follows: With switch in up position Orange and

Yellow wire should have 12 volts and all other wires should have 0

volts. With switch in down position Orange and Lt. Green/Black wire

should have 12 volts and all other wires should have 0 volts.

2) With switch in left position Orange and White/Black wire

should have 12 volts and all other wires should have 0 volts. With

switch in right position Orange and Lt. Blue wire should have 12

volts, all other wires should have 0 volts.

3) Operate left side mirror and check voltage at left side

mirror switch as follows: With switch in up position Orange and

Yellow wire should have 12 volts and all other wires should have 0

volts. With switch in down position Orange and Lt. Green wire should

have 12 volts and all other wires should have 0 volts.

4) With switch in left position Orange and White wire should

have 12 volts and all other wires should have 0 volts. With switch in

right position Orange and Lt. Black wire should have 12 volts and all

other wires should have 0 volts.

Corvette

1) Remove connector from mirror selector switch. With

ignition switch on, operate mirror adjuster control and check voltage

at mirror selector switch connector as follows: With control in up

position Yellow, Lt. Green, White and Lt. Blue wire should have

battery voltage and Dark Blue wire should have 0 volts.

2) With control in down position Dark Blue wire should have

battery voltage and all other wires should have 0 volts. With control

in left position Dark Green wire should have battery voltage and all

other wires should have 0 volts.

3) With control in right position Yellow, Lt. Green, White

and Lt. Blue wire should have battery voltage. Dark Green wire should

have 0 volts. If voltages are correct, replace mirror selector switch.

4) Check voltage at mirror adjuster control with connector

(C314) attached and check as follows: With control in up position

Pink/Black and Black/White wire should have battery voltage and Dark

Blue and Black wire should have 0 volts.

5) With control in down position Pink/Black and Dark Blue

wire should have battery voltage and Black/White and Black wire

should have 0 volts. With control in left position Pink/Black and

Dark Brown wire should have battery voltage and Black wire should

have 0 volts.

6) With control in right position Pink/Black and Black/White

wire should have battery voltage and Dark Brown and Black wire should

have 0 volts. If voltages are incorrect, replace mirror adjuster

control.

7) If voltages are correct, select left or right position at

mirror selector switch. Check voltage at connector (C2) of selected

mirror and check as follows: With control in up position Black/White

wire should have battery voltage and Yellow wire should have 0 volts.

8) With control in down position Yellow wire should have

battery voltage and Black/White wire should have 0 volts. With

control in left position, White wire should have battery voltage and

Black/White wire should have 0 volts.

9) With control in right position Black/White wire should

have battery voltage and White wire should have 0 volts. If voltages

are incorrect, replace mirror. If voltages are correct, check wiring

back to mirror adjuster control and mirror selector switch.

Delta 88 & Toronado

1) Check circuit fuse by operating dome lights. Connect a

test lamp to ground and check for 12 volts at Orange wire. If test

lamp lights, connect test lamp between Orange wire and Black wire. If

test lamp does not light, check Orange and Black wire circuits.

2) If a mirror does not operate, place mirror selector

switch to operate inoperative mirror and check voltage as follows:

Connect test lamp between Yellow and Lt. Green terminals of outside

mirror switch. Check that test lamp lights when mirror control switch

is in up and down positions.

3) Connect test lamp between Dark Blue (Lt. Blue on

Toronado) and White terminals of outside mirror switch. Check that

test lamp lights when mirror control switch is in left and right

positions.

4) If test lamp lights but mirror does not turn, check

wiring and motor. If test lamp does not light when switches are in

position to energize its terminals, install a new outside mirror

switch.

Fiero & 6000

1) Remove outside mirror switch from console, leave switch

connected to wiring harness and check for 12 volts at Orange wire.

Operate left side mirror and check voltage as follows: With switch in

up position Orange and Yellow wire should have 12 volts and all other

wires should have 0 volts.

2) With switch in down position Orange and Lt. Green/Black

wire should have 12 volts and all other wires should have 0 volts.

With switch in left position Orange and White/Black wire should have

12 volts and all other wires should have 0 volts. With switch in

right position Orange and Lt. Blue (Lt. Blue/Black on 6000) wire

should have 12 volts and all other wires should have 0 volts.

3) Operate right side mirror and check voltage as follows:

With switch in up position Orange and Yellow wire should have 12

volts and all other wires should have 0 volts. With switch in down

position Orange and Lt. Green wire should have 12 volts and all other

wires should have 0 volts.

4) With switch in left position Orange and White wire should

have 12 volts and all other wires should have 0 volts. With switch in

right position Orange and Lt. Blue (Lt. Blue/Black on 6000 model)

wire should have 12 volts, all other wires should have 0 volts.

98

1) If neither mirror moves in any direction, check fuse and

wiring between fuse block and outside mirror switch. If a problem is

found, repair as necessary. If fuse and wiring are okay, check

outside mirror switch ground (G201) and wiring between ground and

(C500) connector.

2) If a problem is found, repair as necessary. If ground and

wiring are okay, check continuity between terminals A and B of

outside mirror switch. If there is no continuity, replace switch.

3) If one mirror does not move in any direction, check

wiring between (C500) connector and inoperative mirror. Check

continuity of outside mirror switch between terminals A and E, and

between terminals F and C for left side mirror. Check continuity of

outside mirror switch between terminals A and D, and between

terminals G and H for right side mirror.

Riviera

1) Remove mirror selector switch from driver's armrest and

leave switch connected to wiring harness. Connect a test lamp to

ground and check for 12 volts at Orange wire. If test lamp lights,

connect test lamp between Orange wire and Black wire. If test lamp

does not light, check Orange and Black wire circuits.

2) Operate right side mirror and check for 12 volts at

Orange and Yellow/Black wire. All other wires should have 0 volts.

Operate left side mirror and check for 12 volts at Orange and Yellow

wire. All other wires should have 0 volts.

Sunbird

1) Test circuit fuse by operating horn. If neither mirror

operates, check for battery voltage at center console outside mirror

switch by connecting a test lamp between Orange wire and ground. If

test lamp lights, connect test lamp between Orange wire and Black

wire. If test lamp does not light, check Orange and Black wire

circuits.

2) If left mirror does not operate: Place mirror selector

switch in left mirror position. Connect test lamp to Yellow and Lt.

Blue terminals of outside mirror switch. Check that test lamp lights

when mirror control switch is in up and down positions.

3) Connect test lamp to White and Lt. Blue terminals of

outside mirror switch. Check that test lamp lights when mirror

control switch is in left and right positions. If test lamp lights

but mirror does not turn, check wiring and motor. If test lamp does

not light when switches are in position to energize its terminals,

install a new outside mirror switch.

4) If right mirror does not operate: Place mirror selector

switch in right mirror position. Connect test lamp to Yellow/Black

and Lt. Blue/Black terminals of outside mirror switch. Check that

test lamp lights when mirror control switch is in up and down

positions.

5) Connect test lamp to White/Black and Lt. Blue/Black

terminals of outside mirror switch. Check that test lamp lights when

mirror control switch is in left and right positions. If test lamp

lights but mirror does not turn, check wiring and motor. If test lamp

does not light when switches are in position to energize its

terminals, install a new outside mirror switch.

All Other Models

1) Remove mirror selector switch from armrest or instrument

panel and leave switch connected to wiring harness. Connect a test

lamp to ground and check for 12 volts at Orange wire. If test lamp

lights, connect test lamp between Orange wire and Black wire. If test

lamp does not light, check Orange and Black wire circuits.

2) Operate right side mirror and check voltage at right side

mirror switch as follows: With switch in up position, Orange and

Yellow wire should have 12 volts and all other wires should have 0

volts. With switch in down position, Orange and Lt. Green (Lt.

Green/Black on Skyhawk) wire should have 12 volts and all other wires

should have 0 volts.

3) With switch in left position, Orange and Lt. Blue (Lt.

Blue/Black on Skyhawk) wire should have 12 volts and all other wires

should have 0 volts. With switch in right position Orange and White

(White/Black on Skyhawk) wire should have 12 volts and all other

wires should have 0 volts.

4) Operate left side mirror and check voltage at left side

mirror switch as follows: With switch in up position Orange and

Yellow wire should have 12 volts and all other wires should have 0

volts. With switch in down position Orange and Lt. Green wire should

have 12 volts and all other wires should have 0 volts.

5) With switch in left position Orange and Lt. Blue wire

should have 12 volts and all other wires should have 0 volts. With

switch in right position Orange and White wire should have 12 volts

and all other wires should have 0 volts.