Ford Galaxy / Ford S-MAX. Manual — part 725

Measure the resistance between the following affected
speaker pins, component side.

(Front speakers) pin 1 and pin 4.
(Third row speakers) pins 1 and 2 (if equipped).
(Rear speakers) pin 1 and pin 4.

2

Is the resistance approximately 4.0 ohms?
Yes

GO to F2

.

No

INSTALL a new speaker. TEST the system for normal
operation.

F2: CHECK THE INOPERATIVE SPEAKER(S) CONNECTOR INPUT CIRCUIT(S)

Disconnect Audio Unit C2ME03D.

1

Measure the resistance between the following audio
unit C2ME03D pins, harness side and the inoperative

speaker(s) input circuit(s), harness side:

Left-hand drive vehicles (Left front speaker)
C5ME07 pin 1, circuit VME07A (WH) to C2ME03D pin
3, circuit VME07C (WH).

Left-hand drive vehicles (Right front speaker)
C6ME10 pin 1, circuit VME10A (WH/VT) to CME03D
pin 2, circuit VME10C (WH/VT).

Right-hand drive vehicles(Left front speaker)
C6ME10 pin 1, circuit VME10A (WH/VT) to C2ME03D
pin 3, circuit VME07C (WH).

Right-hand drive vehicles(Right front speaker)
C5ME07 pin 1, circuit VME07A (WH) to C2ME03D pin
2, circuit VME10C (WH/VT).

(Left third row speaker) C4ME09 pin 1, circuit
VME09D (BN/GN) to C2ME03D pin 4, circuit VME09C
(BN/GN).

(Right third row speaker) C4ME12 pin 1, circuit
VME12B (BN/WH) to C2ME03D pin 1, circuit VME12C
(BN/WH).

(Left rear speaker) C7ME09 pin 1, circuit VME09A
(BN/GN) to C2ME03D pin 4, circuit VME09C (BN/GN).

(Right rear speaker) C8ME12 pin 1, circuit VME12A
(BN/WH) to C2ME03D pin 1, circuit VME12C
(BN/WH).

2

Is the resistance less than 1 ohm?
Yes

GO to F3

.

No

REPAIR the circuit(s) in question. TEST the system for
normal operation.

F3: CHECK THE INOPERATIVE SPEAKER(S) CONNECTOR OUTPUT CIRCUIT(S)

Measure the resistance between the following audio
unit C2ME03D pins, harness side and the inoperative

speaker(s) output circuit(s), harness side:

Left-hand drive vehicles (Left front speaker)
C5ME07 pin 4, circuit RME07A (WH/BN) to C2ME03D
pin 7, circuit RME07C (WH/BN).

Left-hand drive vehicles (Right front speaker)
C6ME10 pin 4, circuit RME10A (WH/OG) to CME03D
pin 6, circuit RME10C (WH/OG).

Right-hand drive vehicles(Left front speaker)
C6ME10 pin 4, circuit RME10A (WH/OG) to C2ME03D
pin 7, circuit RME07C (WH/OG).

Right-hand drive vehicles(Right front speaker)
C5ME07 pin 4, circuit RME07A (WH/OG) to C2ME03D
pin 6, circuit RME10C (WH/OG).

(Left third row speaker) C4ME09 pin 2, circuit
RME09D (BN/YE) to C2ME03D pin 8, circuit RME09C
(BN/YE).

(Right third row speaker) C4ME12 pin 2, circuit
RME12B (BN/BU) to C2ME03D pin 5, circuit RME12C
(BN/YE).

(Left rear speaker) C7ME09 pin 4, circuit RME09A
(BN/YE) to C2ME03D pin 8, circuit RME09C (BN/YE).

(Right rear speaker) C8ME12 pin 4, circuit RME12A
(BN/BU) to C2ME03D pin 5, circuit RME12C (BN/BU).

1

Is the resistance less than 1 ohm?
Yes

GO to F4

.

No

REPAIR the circuit(s) in question. TEST the system for
normal operation.

F4: CHECK THE INOPERATIVE SPEAKER(S) CIRCUIT FOR SHORT TO GROUND

Measure the resistance between the following
inoperative speaker(s) input circuit(s), harness side

and ground:

Left-hand drive vehicles (Left front speaker)
C5ME07 pin 1, circuit VME07A (WH).

Left-hand drive vehicles (Right front speaker)
C6ME10 pin 1, circuit VME10A (WH/VT).

Right-hand drive vehicles(Left front speaker)
C6ME10 pin 1, circuit VME10A (WH/VT).

Right-hand drive vehicles(Right front speaker)
C5ME07 pin 1, circuit VME07A (WH).

(Left third row speaker) C4ME09 pin 1, circuit
VME09D (BN/GN).

1

(Right third row speaker) C4ME12 pin 1, circuit
VME12B (BN/WH).

(Left rear speaker) C7ME09 pin 1, circuit VME09A
(BN/GN).

(Right rear speaker) C8ME12 pin 1, circuit VME12A
(BN/WH).

Is the resistance greater than 10,000 ohms (open circuit)?
Yes

INSTALL a new speaker. TEST the system for normal
operation.

No

REPAIR the circuit(s) in question. TEST the system for
normal operation.

PINPOINT TEST G : NO SOUND FROM ONE OR MORE OF THE FRONT
TWEETER SPEAKERS (NOT ALL SPEAKERS)

TEST CONDITIONS

DETAILS/RESULTS/ACTIONS

G1: CHECK THE INOPERATIVE SPEAKER(S) CONNECTOR INPUT CIRCUIT(S)

Disconnect Affected Front Tweeter Speaker.

1

Disconnect Audio Unit C2ME03D.

2

Measure the resistance between the following audio
unit C2ME03D pins, harness side and the inoperative

front tweeter speaker(s) input circuit(s), harness
side:

Left-hand side C2ME03D pin 3, circuit VME07D
(WH) to C5MED8 pin 1, circuit VME07D (WH).
Right-hand side C2ME03D pin 2, circuit VME10D
(WH/VT) to C6ME11 pin 1, circuit VME10D
(WH/VT).

3

Is the resistance less than 1 ohm?
Yes

GO to G2

.

No

REPAIR the circuit(s) in question. TEST the system
for normal operation.

G2: CHECK THE INOPERATIVE SPEAKER(S) CONNECTOR OUTPUT CIRCUIT(S)

Measure the resistance between the following audio
unit C2ME03D pins, harness side and the inoperative

front tweeter speaker(s) output circuit(s), harness
side:

Left-hand side C2ME03D pin 7, circuit RME07D
(WH/BN) to C5MED8 pin 3, circuit RME07D
(WH/BN).
Right-hand side C2ME03D pin 6, circuit RME10D
(WH/OG) to C6ME11 pin 3, circuit RME10D
(WH/OG).

1

Is the resistance less than 1 ohm?
Yes

GO to G3

.

No

REPAIR the circuit(s) in question. TEST the system
for normal operation.

G3: CHECK THE INOPERATIVE TWEETER SPEAKER(S) CIRCUIT FOR SHORT TO

GROUND

Measure the resistance between the following
inoperative front tweeter speaker(s) input circuit(s),

harness side and ground:

Left-hand side C5MED8 pin 1, circuit VME07D
(WH).
Right-hand side C6ME11 pin 1, circuit VME10D
(WH/VT).

1

Is the resistance greater than 10,000 ohms (open
circuit)?
Yes

INSTALL a new tweeter speaker. TEST the system for
normal operation.

No

REPAIR the circuit(s) in question. TEST the system
for normal operation.

PINPOINT TEST H : NO SOUND FROM ONE OR MORE OF THE REAR
TWEETER SPEAKERS (NOT ALL SPEAKERS)

TEST CONDITIONS

DETAILS/RESULTS/ACTIONS

H1: CHECK THE INOPERATIVE SPEAKER(S) CONNECTOR INPUT CIRCUIT(S)

Disconnect Affected Rear Tweeter Speaker.

1

Disconnect Rear Speaker On Affected Rear Tweeter
Speaker Side C7ME09 (Left-hand side) C8ME12

(Right-hand side).

2

Measure the resistance between the following rear
tweeter speaker pins, harness side and the

inoperative tweeter speaker(s) input circuit(s),
harness side:

Left-hand side C7ME09 pin 2, circuit VME39A
(GN/BN), harness side and C7ME39 pin 1, circuit
VME39A (GN/BN), harness side.
Right-hand side C8ME12 pin 2, circuit VME40A
(BN/WH), harness side and C8ME4D pin 1, circuit
VME40A (BN/WH), harness side.

3

Is the resistance less than 1 ohm?
Yes

GO to H2

.

No

REPAIR the circuit(s) in question. TEST the system
for normal operation.

H2: CHECK THE INOPERATIVE SPEAKER(S) CONNECTOR OUTPUT CIRCUIT(S)

Measure the resistance between the following rear
tweeter speaker pins, harness side and the

inoperative tweeter speaker(s) input circuit(s),
harness side:

Left-hand side C7ME09 pin 3, circuit RME39A
(OG/WH), harness side and C7ME39 pin 3, circuit
RME39A (OG/WH), harness side.
Right-hand side C8ME12 pin 3, circuit RME40A
(OG/VT), harness side and C8ME4D pin 3, circuit
RME40A (OG/VT), harness side.

1

Is the resistance less than 1 ohm?
Yes