2007 INFINITI QX56 turn signal

AUTOMATIC BACK DOOR SYSTEM
BL-97
< SERVICE INFORMATION >
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1.CHECK GLASS HATCH AJAR SWITCH INPUT SIGNAL
With CONSULT-II
Check glass hatch ajar switch ("TRNK OPN MNTR") in DATA MONITOR mode with CONSULT–II. Refer to
BL-24, "
CONSULT-II Function (BCM)".
• When glass hatch is open:
• When glass hatch is closed:
Without CONSULT-II
Check voltage between BCM connector M19 terminal 42 and ground.
OK or NG
OK >> System is OK.
NG >> GO TO 2.
2.CHECK GLASS HATCH AJAR SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect glass hatch ajar switch, BCM and back door control unit.
3. Check continuity between glass hatch ajar switch connector D707 terminal + and BCM connector M19 ter-
minal 42.
4. Check continuity between glass hatch ajar switch connector
D707 terminal + and back door control unit connector B55 termi-
nal 17.
5. Check continuity between glass hatch ajar switch connector
D707 terminal + and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3.CHECK GLASS HATCH AJAR SWITCH
1. Disconnect glass hatch ajar switch connector.
2. Check continuity between glass hatch ajar switch connector terminal and ground.TRNK OPN MNTR : ON
TRNK OPN MNTR : OFF
WIIA0108E
Connector ItemTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (–)
M19 BCM 42 GroundOpen
↓
Closed0
↓
Battery voltage
LIIA1149E
+ - 42 : Continuity should exist
+ - 17 : Continuity should exist
+ - Ground : Continuity should not exist
LIIA1547E

BL-98
< SERVICE INFORMATION >
AUTOMATIC BACK DOOR SYSTEM
OK or NG
OK >> Check glass hatch ajar switch case ground condition.
NG >> Replace glass hatch ajar switch, or repair or replace
harness.
Back Door Close (Close) Switch System InspectionINFOID:0000000003532968
1.BACK DOOR CLOSE SWITCH FUNCTION INSPECTION
Check back door close (close) switch using switch operation.
OK or NG
OK >> Back door close switch is OK.
NG >> GO TO 2.
2.BACK DOOR CLOSE SWITCH SIGNAL INSPECTION
1. Turn ignition switch OFF.
2. While operating the back door close switch, check voltage
between back door control unit connector B55 terminal 8 and
ground.
OK or NG
OK >> Back door close switch is OK.
NG >> GO TO 3.
3.BACK DOOR CLOSE SWITCH CIRCUIT INSPECTION
1. Disconnect back door close switch and back door control unit connector.
2. Check continuity between back door close switch connector B63
terminal 1 and back door control unit connector B55 terminal 8.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4.BACK DOOR CLOSE SWITCH GROUND INSPECTION
Terminals Condition Continuity
Glass hatch ajar
switch + – GroundOpen Yes
Closed No
LIIA1151E
Te r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
8GroundBack door
close switchON 0
OFF 5
LIIA0805E
1 - 8 : Continuity should exist.
LIIA1066E

AUTOMATIC BACK DOOR SYSTEM
BL-99
< SERVICE INFORMATION >
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Check continuity between back door close switch connector B63 ter-
minal 3 and ground.
OK or NG
OK >> Replace the back door close switch.
NG >> Repair or replace harness.
Back Door Close (Cancel) Switch System InspectionINFOID:0000000003532969
1.BACK DOOR CLOSE SWITCH FUNCTION INSPECTION
Check back door close (cancel) switch using switch operation.
OK or NG
OK >> Back door close switch is OK.
NG >> GO TO 2.
2.BACK DOOR CLOSE (CANCEL) SWITCH SIGNAL INSPECTION
1. Turn ignition switch OFF.
2. While operating the back door close (cancel) switch, check volt-
age between back door control unit connector B55 terminal 13
and ground.
OK or NG
OK >> Back door close switch is OK.
NG >> GO TO 3.
3.BACK DOOR CLOSE (CANCEL) SWITCH CIRCUIT INSPECTION
1. Disconnect back door close switch and back door control unit connector.
2. Check continuity between back door close switch connector B63
terminal 5 and back door control unit connector B55 terminal 13.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4.BACK DOOR CLOSE SWITCH GROUND INSPECTION3 - Ground : Continuity should exist.
WIIA0602E
Te r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
13 GroundBack door
close switchON 0
OFF Battery voltage
LIIA1068E
5 - 13 : Continuity should exist.
LIIA1069E

BL-100
< SERVICE INFORMATION >
AUTOMATIC BACK DOOR SYSTEM
Check continuity between back door close switch connector B63 ter-
minal 3 and ground.
OK or NG
OK >> Replace the back door close switch.
NG >> Repair or replace harness.
Pinch Strip System InspectionINFOID:0000000003532970
1.PINCH STRIP SIGNAL INSPECTION
1. Turn ignition switch OFF.
2. While operating the pinch strip, check voltage between back
door control unit connector B55 terminals 19, 20 and ground.
OK or NG
OK >> Pinch strip switch is OK.
NG >> GO TO 2.
2.PINCH STRIP CIRCUIT INSPECTION
1. Disconnect pinch strip and back door control unit.
2. Check continuity between pinch strip connector D715 (RH),
D517 (LH) terminal 1, 2 and back door control unit connector
B55 terminal 5, 19 (RH), 20 (LH).
OK or NG
OK >> GO TO 3.
NG >> Repair the harness between the pinch strip and the back
door control unit.
3.PINCH STRIP GROUND INSPECTION
1. Connect back door control unit connector.
2. Check continuity between pinch strip connector terminal 2 and
ground.
OK or NG
OK >> Replace the pinch strip.
NG >> Repair or replace harness.3 - Ground : Continuity should exist.
WIIA0602E
Te r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
19
20GroundPinch strip operation 0
Other 4
LIIA0811E
1 - 19 : Continuity should exist.
1 - 20 : Continuity should exist.
2 - 5 : Continuity should exist.
LIIA0815E
2 - Ground : Continuity should exist.
LIIA0817E

AUTOMATIC BACK DOOR SYSTEM
BL-101
< SERVICE INFORMATION >
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Back Door Warning Chime System InspectionINFOID:0000000003532971
1.BACK DOOR WARNING CHIME CIRCUIT INSPECTION
1. Disconnect back door warning chime and back door control unit.
2. Check continuity between back door warning chime connector
D514 terminal 1 and back door control unit connector B55 termi-
nal 6.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace harness.
2.WARNING CHIME CIRCUIT INSPECTION
Check continuity between back door warning chime connector D514
terminal 2 and back door control unit connector B55 terminal 9.
OK or NG
OK >> Replace warning chime.
NG >> Repair or replace harness.
Half-Latch Switch System InspectionINFOID:0000000003532972
1.HALF-LATCH SWITCH SIGNAL INSPECTION
1. Turn ignition switch OFF.
2. While fully opening and closing the back door, check voltage
between back door control unit connector B55 terminal 22 and
ground.
OK or NG
OK >> Half-latch switch is OK.
NG >> GO TO 2.
2.HALF-LATCH SWITCH CIRCUIT INSPECTION
1. Disconnect back door latch and back door control unit connector.1 - 6 : Continuity should exist.
LIIA0822E
2 - 9 : Continuity should exist.
LIIA2182E
22 - Ground
LIIA0826EPIIA2169E

BL-102
< SERVICE INFORMATION >
AUTOMATIC BACK DOOR SYSTEM
2. Check continuity between back door latch (half-latch switch)
connector D503 terminal 6 and back door control unit connector
B55 terminal 22.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3.HALF-LATCH SWITCH GROUND INSPECTION
Check continuity between back door latch (half-latch switch) connec-
tor D503 terminal 8 and ground.
OK or NG
OK >> Replace the back door latch.
NG >> Repair or replace harness.
Open Switch System InspectionINFOID:0000000003532973
1.OPEN SWITCH SIGNAL INSPECTION
1. Turn ignition switch OFF.
2. While fully closing and opening the back door, check voltage
between back door control unit connector B55 terminal 15 and
ground.
OK or NG
OK >> Open switch is OK.
NG >> GO TO 2.
2.OPEN SWITCH CIRCUIT INSPECTION
1. Disconnect back door latch and back door control unit connector.
2. Check continuity between back door latch (open switch) connec-
tor D503 terminal 4 and back door control unit connector B55
terminal 15.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.6 - 22 : Continuity should exist.
LIIA0827E
8 - Ground : Continuity should exist.
LIIA0828E
15 - Ground
LIIA0829EWIIA1047E
4 - 15 : Continuity should exist.
LIIA0830E

AUTOMATIC BACK DOOR SYSTEM
BL-103
< SERVICE INFORMATION >
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3.OPEN SWITCH GROUND INSPECTION
Check continuity between back door latch (open switch) connector
D503 terminal 8 and ground.
OK or NG
OK >> Replace the back door latch.
NG >> Repair or replace harness.
Close Switch System InspectionINFOID:0000000003532974
1.CLOSE SWITCH SIGNAL INSPECTION
1. Turn ignition switch OFF.
2. While fully opening and closing the back door, check voltage
between back door control unit connector B55 terminal 14 and-
ground.
OK or NG
OK >> Close switch is OK.
NG >> GO TO 2.
2.CLOSE SWITCH CIRCUIT INSPECTION
1. Disconnect back door latch and back door control unit.
2. Check continuity between back door latch (close switch) con-
nector D503 terminal 5 and back door control unit connector
B55 terminal 14.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3.CLOSE SWITCH GROUND INSPECTION8 - Ground : Continuity should exist.
LIIA0828E
14 - Ground
LIIA0831EWIIA1047E
5 - 14 : Continuity should exist.
LIIA0832E

BL-104
< SERVICE INFORMATION >
AUTOMATIC BACK DOOR SYSTEM
Check continuity between back door latch (close switch) connector
D503 terminal 8 and ground.
OK or NG
OK >> Replace the back door latch.
NG >> Repair or replace harness.
Back Door Handle Switch System InspectionINFOID:0000000003532975
1.BACK DOOR HANDLE SWITCH SIGNAL INSPECTION
1. Turn ignition switch OFF.
2. While operating the back door handle switch, check voltage
between back door control unit connector B55 terminal 26 and
ground.
OK or NG
OK >> Back door handle switch is OK.
NG >> GO TO 2.
2.BACK DOOR HANDLE SWITCH CIRCUIT INSPECTION
1. Disconnect back door handle switch and back door control unit.
2. Check continuity between back door handle switch connector
D706 terminal 3 and back door control unit connector B55 termi-
nal 26.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
3.BACK DOOR HANDLE SWITCH GROUND INSPECTION
Check continuity between back door handle switch connector D706
terminal 4 and ground.
OK or NG
OK >> Replace the back door handle switch.
NG >> Repair or replace harness.8 - Ground : Continuity should exist.
LIIA0828E
Te r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
26 GroundBack door handle switch (ON) 0
Other (OFF) Battery voltage
LIIA0833E
3 - 26 : Continuity should exist.
WIIA0604E
4 - Ground : Continuity should exist.
WIIA0605E