Honda Civic. Manual — part 975

5. Reconnect the 22P connector to the power window master switch. Turn the

ignition switch ON (II), and make these input tests at the connector.

If any test indicates a problem, find and correct the cause, then recheck the
system.

If all the input tests prove OK, the control unit must be faulty; replace the
power window master switch.

MASTER SWITCH INPUT TEST (RECONNECTED)

2

BRN

Connect the No. 3 and
the No. 1 terminals and
No. 2 and No. 12
terminals momentarily
with jumper wires

passenger's power
window motor
operation: The
window should go
down.

power window
switch

An open in the
wire

13

LT

BLU

Connect the No. 20 and
the No. 14 terminals
and No. 13 and No. 12
terminals momentarily
with jumper wires

Check front
passenger's power
window motor
operation: The
window should go
down.

Faulty right
rear power
window motor

Faulty right
rear power
window switch

An open in the
wire

14

RED

Connect the No. 20 and
the No. 13 terminals
and No. 14 and No. 12
terminals momentarily
with jumper wires

Check right rear
power window
motor operation:
The window should
go down.

21

PUR

Connect the No. 15 and
the No. 21 terminals
and No. 22 and No. 12
terminals momentarily
with jumper wires

Check left rear
power window
motor operation:
The window should
go down.

Faulty left rear
power window
motor

Faulty left rear
power window
switch

An open in the
wire

22

GRN

Connect the No. 15 and
the No. 22 terminals
and No. 21 and No. 12
terminals momentarily
with jumper wires

Check left rear
power window
motor operation:
The window should
go down.

2008 Honda Civic EX

2006-08 ACCESSORIES & EQUIPMENT Power Windows - Civic (All Except Hybrid)

Cavity Wire Test condition

Test: Desired result

Possible cause if

result is not

obtained

3

GRN

Ignition switch
ON (II)

Check for voltage to
ground: There should be
battery voltage.

Blown No. 30
(20 A) fuse in
the under-
dash
fuse/relay box

Faulty power
window relay

Faulty MICU

An open in
the wire

4

WHT

Under all
conditions

Check for voltage to
ground: There should be
battery voltage.

Blown No. 26
(20 A) fuse in
the under-
hood
fuse/relay box

An open in
the wire

15

[20]

RED

Ignition switch
ON (II)

Check for voltage to
ground: There should be
battery voltage.

Blown No. 32
(20 A) fuse in
the under-
dash
fuse/relay box

Faulty power
window relay

Faulty MICU

An open in
the wire

Blown No. 33
(20 A) fuse in
the under-

2008 Honda Civic EX

2006-08 ACCESSORIES & EQUIPMENT Power Windows - Civic (All Except Hybrid)

20

[15]

PUR

Ignition switch
ON (II)

Check for voltage to
ground: There should be
battery voltage.

dash
fuse/relay box

Faulty power
window relay

Faulty MICU

An open in
the wire

7

BRN

Under all
conditions

Check for voltage to
ground: There should be
less than 0.5 V.

Poor ground
(G503)

An open in
the wire

11

BLK

Ignition switch
ON (II), and
driver's window
moving up and
down

Check for voltage to
ground: There should be
less than 0.5 V.

Poor ground
(G503)

An open in
the wire

12

BLK

Ignition switch
ON (II), main
switch ON, and a
passenger's
window moving
up and down

Check for voltage to
ground: There should be
less than 0.5 V.

Poor ground
(G503)

An open in
the wire

16

PUR

Ignition switch
ON (II)

Check for voltage to
ground: There should be
battery voltage.

Faulty power
window
master switch

Short to
ground in the
wire

5

PNK

Ignition switch
ON (II), and
driver's power
window switch

Check for voltage between
the No. 5 and No. 7
terminals: There should be
0 V-about 5 V -0 V-about
5 V repeatedly (a digital

Faulty power
window
master switch

2008 Honda Civic EX

2006-08 ACCESSORIES & EQUIPMENT Power Windows - Civic (All Except Hybrid)

6. Reset the power window control unit (see RESETTING THE POWER

WINDOW CONTROL UNIT ).

2-DOOR WITH AUTO UP/AUTO DOWN FUNCTION

1. Remove the door panel (see DOOR PANEL

REMOVAL/INSTALLATION ).

2. Disconnect the 16P connector (A) from the master switch (B).

moving up or
down

voltmeter should reads
about 2.5 V while the
window moves).

Faulty driver's
power
window
motor

An open in
the wire

Short to
ground in the
wire

6

ORN

Ignition switch
ON (II), and
driver's power
window switch
moving up or
down

Check for voltage between
the No. 6 and No. 7
terminals: There should be
0 V-about 5 V -0 V- about
5 V repeatedly (a digital
voltmeter should reads
about 2.5 V while the
window moves).

[ ] : early production

NOTE:

The power window control unit is built into the power
window master switch, and it only controls the driver's
window operations.

2008 Honda Civic EX

2006-08 ACCESSORIES & EQUIPMENT Power Windows - Civic (All Except Hybrid)