Suzuki Grand Vitara JB416 / JB420 / JB419. Manual — part 502

9E-19 Glass / Windows / Mirrors:

Rear End Door Window Defogger Relay
Inspection

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1) Disconnect negative (–) cable from battery.
2) Remove rear end door window defogger relay

(included in integration relay) (1) from main fuse box
(2).

3) Check that there is no continuity between terminal

“a” and “b”. If there is continuity, replace relay.

4) Check that there is continuity between terminals “a”

and “b” when a 12 V battery is connected to
terminals “a” and “c”.
If malfunction is found, replace it with a new one.

Rear End Door Window Defogger Wire
Inspection

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NOTE

• When cleaning rear end door window

glass, use a dry cloth to wipe it along heat
wire (1) direction.

• When cleaning glass, do not use detergent

or abrasive-containing glass cleaner.

• When measuring wire voltage, use a tester

with positive probe (2) wrapped with a tin
foil (3) which should be held down on wire
by finger pressure.

Wire Damage Inspection

1) Start engine.
2) Turn on defogger switch.
3) Measure voltage at the center of each defogger wire

(1), and check defogger wire condition according to
the following table.
If defogger wire open is found, go to next step.

Defogger wire voltage

2

1

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“c”

“b”

“a”

“b”

“a”

“c”

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Voltage

Circuit

0 – 1 V Defogger wire open between its center

and defogger wire power source terminal
end (2)

4 – 6 V Normal condition

10 – 12 V Defogger wire open between its center

and defogger wire ground terminal end
(3)

I2RH01950002-01

2

1

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Glass / Windows / Mirrors: 9E-20

4) Touch voltmeter negative (–) lead to defogger wire

ground terminal end (1).

5) Touch voltmeter positive (+) lead with a foil strip to

defogger wire power source terminal end (2), then
move it along wire to defogger wire ground terminal
end (1).
The place where voltmeter fluctuates from 10 – 12 V
to 0 – 1 V is where there is open.
If found defective, repair defogger wire referring to
“Rear End Door Window Defogger Wire Repair”.

Rear End Door Window Defogger Wire Repair

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1) Use white gasoline for cleaning.
2) Apply masking tape (1) at both upper and lower

sides of heat wire (2) to be repaired.

3) Apply commercially-available repair agent (3) with a

fine-tip brush (4).

4) 2 to 3 minutes later, remove masking tapes (1).

5) Leave repaired heat wire as it is for at least 24 hours

before operating the defogger again.

Power Window Main Switch Inspection

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Switch for driver side window

1) Remove driver side door trim referring to step 1) to

3) of “Front Door Glass Removal and Installation”.

2) Remove power window main switch from door trim.

3) Connect 12 V battery positive (+) terminal to terminal

“IG” of power window main switch and its negative (–
) terminal to terminal “E” of power window main
switch.

4) Check for continuity between terminals as shown

below.
If check result is not as specified, replace power
window main switch.

2

1

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[A]: LH steering vehicle
[B]: RH steering vehicle

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9E-21 Glass / Windows / Mirrors:

Switch for other window than driver side

1) Remove driver side door trim referring to step 1) to

3) of “Front Door Glass Removal and Installation”.

2) Remove power window main switch from door trim.
3) Check for continuity between terminals as shown

below.

If check result is not as specified, replace power window
main switch.

Power Window Sub Switch Inspection

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1) Remove front and/or rear door trim from door panel,

refer to Step 1) to 3) of “Front Door Glass Removal
and Installation” and/or “Rear Door Glass Removal
and Installation”.

2) Remove power window sub switch from door trim.
3) Check for continuity between terminals at each

switch condition.

If check result is not as specified, replace switch.

[A]: LH steering vehicle
[B]: RH steering vehicle

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Glass / Windows / Mirrors: 9E-22

Door Mirror Components

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Door Mirror Removal and Installation

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When removing or installing door mirror, refer to the
figure in “Door Mirror Components”.

Power Door Mirror Switch Inspection

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1) Remove driver side door trim referring to step 1) to

3) of “Front Door Glass Removal and Installation”.

2) Remove power window main switch from door trim.
3) Check for continuity between terminals at each

switch position.
If check result is not as specified, replace door mirror
switch.

“1”

“3”

“2”

1

2,

2,

2,

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1. Door mirror
2. Door mirror mounting nut

:Tighten nuts in such order as indicated in the figure.

A

B

C

D

E

F

G

Up

Down

Left

Right

L

R

A

B

C

D

E

F

G

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