Nissan Teana J32. Manual - part 926

POWER WINDOW MAIN SWITCH

PWC-71

< ECU DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

PWC

N

O

P

JCKWM1230GB

PWC-72

< ECU DIAGNOSIS >

POWER WINDOW MAIN SWITCH

Fail-safe

INFOID:0000000003826036

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 error beyond regulation value is detected between
the fully closed position and the actual position of the glass.

JCKWM1231GB

POWER WINDOW MAIN SWITCH

PWC-73

< ECU DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

PWC

N

O

P

When the system is switched to fail-safe control, the system becomes un initialized condition and the following
functions do not operate.
• Auto-up operation
• Anti-pinch function

Perform initial operation to recover when switched to fail-safe mode. However, it switches back to fail-safe
control when malfunction is found in power window switch or front power window motor.

Error

Error condition

Pulse sensor malfunction

When only one side of pulse signal is being detected for more than the specified value.

Both pulse sensors mal-
function

When both pulse signals have not been detected for more than the specified value during glass open/
close operation.

Pulse direction malfunction

When the pulse signal that is detected during glass open/close operation detects the opposite condition 
of power window motor operating direction.

Glass recognition position 
malfunction 1

When it detects the error between glass fully closed position in power window switch memory and actual 
fully closed position during glass open/close operation is more than the specified value.

Glass recognition position 
malfunction 2

When it detects pulse count more than the value of glass full stroke during glass open/close operation.

Malfunction of not yet up-
dated closed position of 
glass

When glass open/close operation is continuously performed without fully closing more than the specified 
value (approximately 10 strokes).

PWC-74

< SYMPTOM DIAGNOSIS >

POWER WINDOWS DO NOT OPERATE WITH ANY POWER WINDOW SWITCH-

ES

SYMPTOM DIAGNOSIS

POWER WINDOWS DO NOT OPERATE WITH ANY POWER WINDOW
SWITCHES

Diagnosis Procedure

INFOID:0000000003826037

1.

CHECK BCM POWER SUPPLY AND GROUND CIRCUIT

Check BCM power supply and ground circuit.
Refer to 

PWC-12, "BCM : Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace the malfunctioning parts.

2.

CHECK POWER WINDOW MAIN SWITCH POWER SUPPLY AND GROUND CIRCUIT

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

PWC-12, "POWER WINDOW MAIN SWITCH : Diagnosis Procedure"

.

Is the inspection result normal?

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-35, "Intermittent Incident"

.

NO

>> GO TO 1.