Honda Civic. Manual — part 948

Fig. 2: Power Moonroof Circuit Diagram (06-07' Models)

2008 Honda Civic EX

2006-08 ACCESSORIES & EQUIPMENT Power Moonroof - Civic

Fig. 3: Power Moonroof Circuit Diagram (08' Model)
Courtesy of AMERICAN HONDA MOTOR CO., INC.

MOONROOF CONTROL UNIT INPUT TEST

2008 Honda Civic EX

2006-08 ACCESSORIES & EQUIPMENT Power Moonroof - Civic

1. Turn the ignition switch OFF.
2. Remove the headliner (see HEADLINER REMOVAL/INSTALLATION ).
3. Disconnect the 10P connector (A) from the moonroof control unit (B).

Fig. 4: Disconnecting 10P Connector From Moonroof Control Unit

4. Inspect the connector and socket terminals to be sure they are all making good

contact.

If the terminals are bent, loose or corroded, repair them as necessary, and
recheck the system.

If the terminals look OK, go to step 5.

5. Reconnect the connector to the control unit, and make these input tests at the

connector.

NOTE:

If the moonroof works OK manually, but will not work in
AUTO, or reverses frequently (obstacle detection), do the
moonroof calibration (see RESETTING THE MOONROOF
CONTROL UNIT ) before proceeding with the input test.

2008 Honda Civic EX

2006-08 ACCESSORIES & EQUIPMENT Power Moonroof - Civic

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

If all the input tests prove OK, go to step 6.

MOONROOF CONTROL UNIT INPUT TEST (1 OF 2)

Cavity Wire Test condition

Test: Desired

result

Possible cause if

result is not

obtained

1

GRN

Under all
conditions

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

Blown No. 24
(20 A) fuse in
the under-dash
fuse/relay box

An open in the
wire

5

PUR

[GRN]

Ignition switch
ON (ID

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

Blown No. 32
(20 A) [No.30
(20 A)] fuse in
the under-dash
fuse/relay box

An open in the
wire

10

BLK

Under all
conditions

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

Poor ground
(G503) [G851]

An open in the
wire

6

WHT

[PUR]

Moonroof
switch in
AUTO OPEN
or AUTO
CLOSE
position

Check for voltage
to ground at the
No. 5 and No. 6
terminals: There
should be battery
voltage.

Faulty moonroof
switch

An open in the
wire

Moonroof

Check for voltage
to ground at the

Faulty moonroof

2008 Honda Civic EX

2006-08 ACCESSORIES & EQUIPMENT Power Moonroof - Civic