Ford Galaxy / Ford S-MAX. Manual — part 919

TEST the system for normal operation.

No

Inoperative left-hand rear quarter power window -
REPAIR circuit CPW26B (BU/BN). TEST the system
for normal operation.
Inoperative right-hand rear quarter power window -
REPAIR circuit CPW28A (WH/BN). TEST the system
for normal operation.

PINPOINT TEST D : THE DEFROST SYSTEM IS INOPERATIVE

TEST CONDITIONS

DETAILS/RESULTS/ACTIONS

D1: CHECK THE OPERATION OF THE HEATED REAR WINDOW

NOTE: Use a digital multimeter for all electrical measurements.

Ignition switch in position III.

1

Ignition switch in position II.

2

Operate the heated rear window switch.

3

Does the heated rear window function correctly?
Yes

GO to D2

.

No

GO to D3

.

D2: CHECK THE OPERATION OF THE HEATED WINDSHIELD

Operate the heated windshield control switch.

1

Does the heated windshield operate correctly?
Yes

VERIFY the customer concern.

No

GO to D6

.

D3: CHECK THE OPERATION OF THE HEATED REAR WINDOW SWITCH LED

Operate the heated rear window switch.

1

Does the heated rear window switch ON LED illuminate?
Yes

GO to D4

.

No

GO to D10

.

D4: CHECK FOR VOLTAGE TO THE HEATED REAR WINDOW GRID WIRES

Ignition switch in position 0.

1

Disconnect Heated Rear Window Grid Wires
C4RD02-A.

2

Ignition switch in position III.

3

Ignition switch in position II.

4

Operate the heated rear window switch.

5

Measure the voltage between the heated rear
window grid wire CC4RD02-A pin 1, circuit CRD06C

(BN/YE), harness side and ground.

6

Is the voltage greater than 10 volts?
Yes

GO to D5

.

No

GO to D13

.

D5: CHECK THE HEATED REAR WINDOW GRID GROUND CIRCUIT

Ignition switch in position 0.

1

Disconnect Heated Rear Window Grid Wires
C4RD02-B.

2

Measure the resistance between the heated rear
window C4RD02-B pin 1, circuit GD150AE

(BK/WH), harness side and ground.

3

Is the resistance less than 5 ohms?
Yes

CARRY OUT the Heated Rear Window Grid Wire
Component Test in this procedure. TEST the system
for normal operation.

No

REPAIR circuit GD150AE (BK/WH). TEST the system
for normal operation.

D6: CHECK THE OPERATION OF THE HEATED WINDSHIELD SWITCH LED

Operate the heated windshield switch.

1

Does the heated windshield switch ON LED illuminate?
Yes

GO to D7

.

No

GO to D16

.

D7: CHECK FOR VOLTAGE TO THE HEATED WINDSHIELD GRID WIRES

Ignition switch in position 0.

1

Disconnect Heated Windshield Grid Wires C2RD03
and C2RD04-A.

2

Ignition switch in position III.

3

Ignition switch in position II.

4

Operate the heated windshield control switch.

5

Measure the voltage between the:

heated windshield left-hand grid wire C2RD03 pin
1, circuit CBB35A (YE/GY), harness side and
ground.
heated windshield right-hand grid wire C2RD04-A
pin 1, circuit CBB34B (VT/BN), harness side and
ground.

6

Is the voltage greater than 10 volts?
Yes

GO to D8

.

No

GO to D18

.

D8: CHECK THE HEATED WINDSHIELD GRID WIRE GROUND CIRCUITS

Ignition switch in position 0.

1

Measure the resistance between the heated
windshield ground circuits and ground.

2

Are the resistances less than 5 ohms?
Yes

GO to D9

.

No

REPAIR the heated windshield ground circuit(s).
TEST the system for normal operation.

D9: CHECK THE HEATED WINDSHIELD GRID WIRES

Measure the resistance between the:

heated windshield left-hand grid wire C2RD03 pin
1, circuit CBB35A (YE/GY), harness side and
ground.
heated windshield right-hand grid wire C2RD04-A
pin 1, circuit CBB34B (VT/BN), harness side and
ground.

1

Are the resistances greater than 10,000 ohms?
Yes

INSTALL a new windshield glass.
REFER to: Windshield Glass (501-11 Glass, Frames
and Mechanisms, Removal and Installation).
TEST the system for normal operation.

No

VERIFY the customer concern.

D10: CHECK THE HEATED REAR WINDOW SWITCH GROUND CIRCUIT

Ignition switch in position 0.

1

Disconnect Heated Rear Window Switch C2RD09-B.

2

Measure the resistance between the heated rear
window switch C2RD09-B pin 4, circuit GD133BN

(BK), harness side and ground.

3

Is the resistance less than 5 ohms?
Yes

GO to D11

.

No

REPAIR circuit GD133BN (BK). TEST the system for
normal operation.

D11: CHECK FOR CONTINUITY BETWEEN THE CENTRAL JUNCTION BOX (CJB) AND
THE HEATED REAR WINDOW SWITCH LED

Disconnect CJB C1BP02-C.

1

Measure the resistance between the CJB C1BP02-C
pin 46, circuit CRD04A (BN/GN), harness side and

the heated rear window control switch C2RD09-B
pin 3, circuit CRD04A (BN/GN), harness side.

2

Is the resistance less than 5 ohms?

Yes

GO to D12

.

No

Repair circuit CRD04A (BN/GN). TEST the system
for normal operation.

D12: CHECK FOR CONTINUITY BETWEEN THE CENTRAL JUNCTION BOX (CJB) AND
THE HEATED REAR WINDOW SWITCH

Measure the resistance between the CJB C1BP02-C
pin 7, circuit CRD09A (BU/GY), harness side and

the heated rear window control switch C2RD09-B
pin 6, circuit CRD09A (BU/GY), harness side.

1

Is the resistance less than 5 ohms?
Yes

CARRY OUT the CJB self-test. REFER to WDS.
CARRY OUT the Heated Rear Window Glass Switch
component test. REFER to the Wiring Diagrams.

No

Repair circuit CRD09A (BU/GY). TEST the system
for normal operation.

D13: CHECK FOR VOLTAGE TO THE HEATED REAR WINDOW RELAY

Ignition switch in position 0.

1

Disconnect Heated Rear Window Relay RA2.

2

Measure the voltage between the heated rear
window relay RA2 pin 1 circuit SBB19F (BU/RD),

harness side and ground.

3

Is the voltage greater than 10 volts?
Yes

GO to D14

.

No

REPAIR circuit SBB19F (BU/RD). TEST the system
for normal operation.

D14: CHECK FOR CONTINUITY BETWEEN THE CJB AND THE HEATED REAR WINDOW
RELAY

Disconnect CJB C1BP02-B.

1

Measure the resistance between the CJB C1BP02-B
pin 26, circuit CRD02A (BN/BU), harness side and

the heated rear window relay RA2 pin 2, circuit
CRD02A (BN/BU), harness side.

2

Is the resistance less than 5 ohms?