Infiniti F50. Manual — part 224

AUTO TRUNK SYSTEM

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D

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F

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B

BL

Weather strip Detection Switch System Check

EIS0055Y

1.

CHECK WEATHER STRIP DETECTION SWITCH SIGNAL

Check voltage between auto trunk control unit connector and ground.

OK or NG

OK

>> weather strip detection switch is OK

NG

>> GO TO 2.

2.

CHECK HARNESS CONTINUITY

1.

Turn ignition switch OFF.

2.

Disconnect auto trunk control unit and auto trunk motor connector.

3.

Check continuity between auto trunk control unit connector B110 terminal 10 and auto trunk motor con-
nector B109 terminal 1.

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace harness between auto trunk control

unit and auto trunk motor.

3.

CHECK GROUND CIRCUIT

Check continuity between trunk motor connector B109 terminal 4 and ground.

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace harness.

Connector

Terminals (Wire color)

Condition

Voltage (V)

(Approx.)

(+)

(-)

B110 10

(Y/B)

Ground

Trunk lid fully is between
just before fully closed
position and fully closed
position (OFF)

5

Other than above

0

PIIA2954E

10 (Y/B) – 1 (Y/B)

: Continuity should exist.

PIIA2955E

4 (B) – Ground

: Continuity should exist.

PIIA2956E

BL-144

AUTO TRUNK SYSTEM

4.

CHECK WEATHERSTRIP DETECTION SWITCH

Check continuity between auto trunk motor terminals 1 and 4.

OK or NG

OK

>> Trunk lid switch is OK.

NG

>> Replace auto trunk motor.

Lid Full Up Position Switch Check

EIS0055Z

1.

CHECK LID FULL UP POSITION SWITCH SIGNAL

Check voltage between auto trunk control unit connector and ground.

OK or NG

OK

>> Lid full up position switch is OK.

NG

>> GO TO 2.

2.

CHECK HARNESS CONTINUITY

1.

Turn ignition switch OFF.

2.

Disconnect auto trunk control unit and auto trunk motor connector.

3.

Check continuity between auto trunk control unit connector B110 terminal 11 and auto trunk motor con-
nector B109 terminal 2.

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace harness between auto trunk control

unit and auto trunk motor.

Terminals Condition

Continuity

1

4

Trunk lid fully is between just before
fully closed position and fully closed
position (OFF)

No

Other than above

Yes

PIIA2957E

Connector

Terminals (Wire color)

Condition

Voltage (V)

(Approx.)

(+)

(-)

B110

11 (L/Y)

Ground

Trunk lid fully opened
position (ON)

0

Other than above (OFF)

5

PIIA2958E

11 (L/Y) – 2 (L/Y)

: Continuity should exist.

PIIA2959E

AUTO TRUNK SYSTEM

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D

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F

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A

B

BL

3.

GROUND CIRCUIT CHECK

Check continuity between auto trunk motor connector B109 terminal 4 and ground.

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace harness.

4.

CHECK LID FULL UP POSITION SWITCH

Check continuity between auto trunk motor 1 and 4.

OK or NG

OK

>> Lid full up position switch is OK.

NG

>> Replace auto trunk motor.

Trunk Lid Opener Switch Check

EIS00560

1.

CHECK TRUNK LID OPENER SWITCH SIGNAL

Check voltage between auto trunk control unit connector and ground.

OK or NG

OK

>> Trunk lid opener switch is OK.

NG

>> GO TO 2.

4 (B) – Ground

: Continuity should exist.

PIIA2956E

Terminals

Condition

Continuity

1

4

Trunk lid fully opened position (ON)

Yes

Other than above

No

PIIA2960E

Connector

Terminals (Wire color)

Condition

Voltage (V)

(Approx.)

(+)

(-)

B110 6

(Y/R)

Ground

Trunk lid opener switch
pressed (ON)

0

Other than above (OFF)

5

PIIA2961E

BL-146

AUTO TRUNK SYSTEM

2.

CHECK HARNESS CONTINUITY

1.

Turn ignition switch OFF.

2.

Disconnect auto trunk control unit and trunk lid opener switch connector.

3.

Check continuity between auto trunk control unit connector B110 terminal 6 and trunk lid opener switch
connector D9 terminal 3.

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace harness between auto trunk control

unit and auto trunk motor.

3.

CHECK TRUNK LID OPENER SWITCH GROUND CIRCUIT

Check continuity between trunk lid and fuel lid opener switch connector D9 terminal 2 and ground.

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace harness.

4.

CHECK TRUNK LID OPENER SWITCH

Check continuity between trunk lid opener switch terminals 2 and 3.

OK or NG

OK

>> Replace auto trunk control unit.

NG

>> Replace trunk lid opener switch.

6 (Y/R) – 3 (Y/R)

: Continuity should exist.

PIIA2962E

2 (B) – Ground

: Continuity should exist.

PIIA2963E

Terminals Condition

Continuity

2

3

Trunk lid opener switch pressed (ON)

Yes

Other than above (OFF)

No

PIIA2964E