Infiniti G37 Coupe. Manual - part 1103

SE-80

< COMPONENT DIAGNOSIS >

TILT&TELESCOPIC MOTOR

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-38, "Intermittent Incident"

.

NO

>> Replace automatic drive positioner control unit. Refer to 

SE-166, "Removal and Installation"

.

 Automatic drive positioner control unit 

Ground

Tilt and telescopic switch 

condition

Voltage (V)

(Approx.)

Connector

Terminal

M52

35

Upward

Battery voltage

Other than above

0

36

Forward

Battery voltage

Other than above

0

42

Downward

Battery voltage

Other than above

0

44

Backward

Battery voltage

Other than above

0

SLIDING RELAY

SE-81

< COMPONENT DIAGNOSIS >

C

D

E

F

G

H

I

K

L

M

A

B

SE

N

O

P

SLIDING RELAY

FORWARD

FORWARD : Diagnosis Procedure

INFOID:0000000001827806

1.

CHECK DRIVER SEAT CONTROL UNIT/PASSENGER SEAT CONTROL UNIT INPUT SIGNAL

1.

Turn ignition switch ON.

2.

Check continuity between driver seat control unit/passenger seat control unit harness connector and
ground.

Is the inspection result normal?

YES

>> Sliding relay (forward) is OK.

NO

>> GO TO 2.

2.

CHECK SLIDING RELAY (FORWARD) POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Disconnect sliding relay (forward).

3.

Check voltage between sliding relay (forward) harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 3.

3.

CHECK SLIDING RELAY (FORWARD) POWER SUPPLY CIRCUIT

1.

Disconnect power seat switch connector.

2.

Check continuity between power seat switch harness connector and sliding relay (forward) harness con-
nector.

3.

Check continuity between power seat switch harness connector and ground.

Driver seat control unit/

Passenger seat control unit

Ground

Condition

Voltage (V)

(Approx.)

Connector

Terminal

Driver seat control 

unit: B503

(driver side)

26

Ground

Sliding switch

(driver side)

Operate (forward)

Battery voltage

Release

0

Passenger seat 

control unit: B553

(passenger side)

Sliding switch

(passenger side)

Operate (forward)

Battery voltage

Release

0

Sliding relay (forward)

Ground

Condition

Voltage (V)

(Approx.)

Connector

Terminal

B515

(driver side)

22

Ground

Sliding switch

(driver side)

Operate (forward)

Battery

Release

0

B559

(passenger side)

Sliding switch

(passenger side)

Operate (forward)

Battery

Release

0

Power seat switch

Sliding relay (forward)

Continuity

Connector

Terminal

Connector

Terminal

B511

(driver side)

22

B515

(driver side)

22

Existed

B554

(passenger side)

B559

(passenger side)

Existed

SE-82

< COMPONENT DIAGNOSIS >

SLIDING RELAY

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-38, "Intermittent Incident"

.

NO

>> Repair or replace harness.

4.

CHECK SLIDING RELAY (FORWARD)

Refer to 

SE-83, "FORWARD : Component Inspection (Sliding Relay)"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace sliding relay.

5.

CHECK SLIDING RELAY (FORWARD) CIRCUIT 1

1.

Disconnect driver seat control unit/passenger seat control unit connector.

2.

Check continuity between sliding relay (forward) harness connector and driver seat control unit/passenger
seat control unit harness connector.

3.

Check continuity between sliding relay (forward) harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace harness or connector.

6.

CHECK SLIDING RELAY (FORWARD) CIRCUIT 2

1.

Check continuity between sliding relay (forward) harness connector and driver seat control unit/passenger
seat control unit harness connector.

Power seat switch

Ground

Continuity

Connector

Terminal

B511

(driver side)

22

Ground

Not existed

B554

(passenger side)

Not existed

Sliding relay (forward)

Driver seat control unit/

Passenger seat control unit

Continuity

Connector

Terminal

Connector

Terminal

B515

(driver side)

48

Driver seat control unit: 

B504

(driver side)

48

Existed

B559

(passenger side)

Passenger seat control 

unit: B553

(passenger side)

Existed

Sliding relay (forward)

Ground

Continuity

Connector

Terminal

B515

(driver side)

48

Ground

Not existed

B559

(passenger side)

Not existed

SLIDING RELAY

SE-83

< COMPONENT DIAGNOSIS >

C

D

E

F

G

H

I

K

L

M

A

B

SE

N

O

P

2.

Check continuity between sliding relay (forward) harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Repair or replace harness.

7.

CHECK SLIDING RELAY (FORWARD) GROUND CIRCUIT

Check continuity between sliding relay (forward) harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair or replace harness or connector.

8.

CHECK DRIVER SEAT CONTROL UNIT/PASSENGER SEAT CONTROL UNIT OUTPUT

1.

Connect driver seat control unit/passenger seat control unit connector.

2.

Check voltage between driver seat control unit/passenger seat control unit harness connector and
ground.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-38, "Intermittent Incident"

.

NO

>> Replace driver seat control unit/passenger seat control unit.

FORWARD : Component Inspection (Sliding Relay)

INFOID:0000000001827807

1.

CHECK SLIDING RELAY

Sliding relay (forward)

Driver seat control unit/

Passenger seat control unit

Continuity

Connector

Terminal

Connector

Terminal

B515

(driver side)

26

Driver seat control unit: 

B504

(driver side)

26

Existed

B559

(passenger side)

Passenger seat control 

unit: B553

(passenger side)

Existed

Sliding relay (forward)

Ground

Continuity

Connector

Terminal

B515

(driver side)

26

Ground

Not existed

B559

(passenger side)

Not existed

Sliding relay (forward)

Ground

Continuity

Connector

Terminal

B515

(driver side)

32

Ground

Existed

B559

(passenger side)

Existed

Driver seat control unit/

Passenger seat control unit

Ground

Voltage (V)

(Approx.)

Connector

Terminal

Driver seat control unit: B503

(driver side)

26

Ground

Battery voltage

Passenger seat control unit: 

B552

(passenger side)

Battery voltage