Honda Civic. Manual — part 131

YES -Go to step 19.

NO -Repair open in the wire between stereo amplifier connector A (20P) No.
20 terminal or connector B (14P) No. 14 terminal and body ground, 2-door
model (G505), 4-door model (G601).

19. Turn the ignition switch to LOCK (0).
20. Disconnect stereo amplifier connector A (20P).
21. Measure the resistance between the following terminals of stereo amplifier

connector A (20P) according to the table.

SPEAKER TERMINALS REFERENCE

Speaker

Terminal Wire color

Driver's door speaker

A3 (+)

LT GRN

A13 (-)

PNK

Left tweeter

A4 (+)

RED

A14 (-)

GRN

Front passenger's door speaker

A2 (+)

GRY

A12 (-)

BRN

Right tweeter

A1 (+)

PNK

A11 (-)

BLU

Left rear speaker

A8 (+)

YEL

A18 (-)

BRN

Right rear speaker

A7 (+)

BLU

A17 (-)

ORN

Subwoofer

A5 (+)

GRN

A15 (-)

RED

2008 Honda Civic LX

2006-08 ACCESSORIES & EQUIPMENT Audio System - Civic (Except Hybrid)

Fig. 57: Measuring Resistance Between Stereo Amplifier A (20P)
Connector Terminals
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there about 4 ohms?

YES -Go to step 22.

NO -Repair oper or short in the wires between stereo amplifier and speaker(s).

22. Check for continuity between body ground and the following terminals of

stereo amplifier connector A (20P).

SPEAKER TERMINALS REFERENCE

Speaker

Terminal Wire color

Driver's door speaker

A3 (+)

LT GRN

A13 (-)

PNK

Left tweeter

A4 (+)

RED

A14 (-)

GRN

Front passenger's door speaker

A2 (+)

GRY

A12 (-)

BRN

Right tweeter

A1 (+)

PNK

A11 (-)

BLU

Left rear speaker

A8 (+)

YEL

A18 (-)

BRN

Right rear speaker

A7 (+)

BLU

A17 (-)

ORN

Subwoofer

A5 (+)

GRN

A15 (-)

RED

2008 Honda Civic LX

2006-08 ACCESSORIES & EQUIPMENT Audio System - Civic (Except Hybrid)

Fig. 58: Checking Continuity Between Stereo Amplifier A (20P)
Connector Terminals And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Repair short to body ground in the wire(s) between stereo amplifier and
speaker(s).

NO -

2-door: Go to step 23.

'08 4-door: Go to step 27.

23. Disconnect stereo amplifier connector B (14P).
24. Disconnect navigation unit connector A (17P).
25. Check for continuity between stereo amplifier connector B (14P) and body

ground according to the table. Then check for continuity between the same
terminals listed in the table and stereo amplifier connector B (14P) No. 2
terminal (the harness shield).

AMPLIFIER CONNECTOR REFERENCE

Amplifier connector Wire color

B1

BLU

B3

BLK

B4

GRN

B6

BRN

B8

ORN

B10

WHT

2008 Honda Civic LX

2006-08 ACCESSORIES & EQUIPMENT Audio System - Civic (Except Hybrid)

Fig. 59: Checking Continuity Between Stereo Amplifier B (14P) Connector
Terminals And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Repair short in the wire between the stereo amplifier and the navigation
unit. Replace the appropriate shielded harness.

NO -Go to step 26.

26. Check for continuity between navigation unit connector A and stereo amplifier

connector B according to the table.

NAVIGATION UNIT CONNECTOR AND AMPLIFIER CONNECTOR
REFERENCE

B11

RED

B13

YEL

Navigation unit connector Amplifier connector Wire color

A2

B10

WHT

A3

B8

ORN

A7

B11

RED

A8

B13

YEL

A11

B3

BLK

A12

B1

BLU

A15

B4

GRN

A16

B6

BRN

2008 Honda Civic LX

2006-08 ACCESSORIES & EQUIPMENT Audio System - Civic (Except Hybrid)