Infiniti FX35, FX50 (S51). Manual - part 1543

FRONT POWER WINDOW SWITCH

PWC-233

< ECU DIAGNOSIS INFORMATION >

[FRONT WINDOW ANTI-PINCH]

C

D

E

F

G

H

I

J

L

M

A

B

PWC

N

O

P

Fail-safe

INFOID:0000000005248317

FAIL-SAFE CONTROL

Switches to fail-safe control when malfunction is detected in encoder signal that detects up/down speed and
direction of door glass. Switches to fail-safe control when a signal that is out of the specified value is detected
between the fully closed position and the actual position of the glass.

JCKWA3069GB

PWC-234

< ECU DIAGNOSIS INFORMATION >

[FRONT WINDOW ANTI-PINCH]

FRONT POWER WINDOW SWITCH

If fail-safe control, the system changes to a non-initialized condition and the following function do not operate.
• Auto-up operation
• Anti-pinch function
• Retained power function

When fail-safe control is activated, perform initialization procedure to recover. If a malfunction is detected in
power window switch or more, fail-safe control is activated again.

Malfunction

Malfunction condition

Pulse sensor malfunction

When one pulse signal that is the specified value or more is detected continuously for the specified 
time or more, while door glass is being operated UP or DOWN.

Both pulse sensors mal-
function

When both pulse signals are not detected continuously for the specified time or more, while door 
glass is being operated UP or DOWN.

Pulse direction malfunc-
tion

When a pulse signal indicating that window is moving in the opposite direction against the power win-
dow motor is detected for the specified value or more, while door glass is being operated UP or 
DOWN.

Glass recognition position 
malfunction 1

When the actual door glass position that is out of specified value is detected compared to the door 
glass fully closed position memorized in module, while door glass is being operated UP or DOWN.

Glass recognition position 
malfunction 2

When pulse count that is out of the door glass full stroke value or more is detected, while door glass 
is being operated UP or DOWN.

Fully closed position up-
date malfunction

When door glass is continuously operated UP or DOWN for the specified value or more without fully 
closing door glass (approximately 10 time or more).

NONE OF THE POWER WINDOWS CAN BE OPERATED USING ANY SWITCH

PWC-235

< SYMPTOM DIAGNOSIS >

[FRONT WINDOW ANTI-PINCH]

C

D

E

F

G

H

I

J

L

M

A

B

PWC

N

O

P

SYMPTOM DIAGNOSIS

NONE OF THE POWER WINDOWS CAN BE OPERATED USING ANY
SWITCH

Diagnosis Procedure

INFOID:0000000005248318

1.

CHECK BCM POWER SUPPLY AND GROUND CIRCUIT

Check BCM power supply and ground circuit.
Refer to 

PWC-16, "BCM : Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace the malfunctioning parts.

2.

CONFIRM THE OPERATION

Confirm the operation again.

Is the result normal?

YES

>> Check intermittent incident. Refer to 

GI-36, "Intermittent Incident"

.

NO

>> GO TO 1.

PWC-236

< SYMPTOM DIAGNOSIS >

[FRONT WINDOW ANTI-PINCH]

DRIVER SIDE POWER WINDOW ALONE DOES NOT OPERATE

DRIVER SIDE POWER WINDOW ALONE DOES NOT OPERATE

Diagnosis Procedure

INFOID:0000000005248319

1.

CHECK POWER WINDOW MAIN SWITCH POWER SUPPLY AND GROUND CIRCUIT

Check power window switch power supply and ground circuit.
Refer to 

PWC-148, "POWER WINDOW MAIN SWITCH : Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace the malfunctioning parts.

2.

CHECK DRIVER SIDE POWER WINDOW MOTOR

Check driver side power window motor. 
Refer to 

PWC-154, "DRIVER SIDE : Component Function Check"

.

Is the measurement value within the specification?

YES

>> GO TO 3.

NO

>> Repair or replace the malfunctioning parts.

3.

CONFIRM THE OPERATION

Confirm the operation again.

Is the result normal?

YES

>> Check intermittent incident. Refer to 

GI-36, "Intermittent Incident"

.

NO

>> GO TO 1.