Infiniti EX35. Manual - part 1185

PWC-4

< BASIC INSPECTION >

DIAGNOSIS AND REPAIR WORKFLOW

BASIC INSPECTION

DIAGNOSIS AND REPAIR WORKFLOW

WorkFlow

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DETAILED FLOW

1.

OBTAIN INFORMATION ABOUT SYMPTOM

Interview the customer to obtain the malfunction information (conditions and environment when the malfunc-
tion occurred) as much as possible when the customer brings the vehicle in.

>> GO TO 2.

2.

REPRODUCE THE MALFUNCTION INFORMATION

Check the malfunction on the vehicle that the customer describes.
Inspect the relation of the symptoms and the condition when the symptoms occur.

>> GO TO 3.

3.

IDENTIFY THE MALFUNCTIONING SYSTEM WITH “SYMPTOM DIAGNOSIS”

Use “Symptom diagnosis” from the symptom inspection result in step 2 and then identify where to start per-
forming the diagnosis based on possible causes and symptoms.

>> GO TO 4.

4.

IDENTIFY THE MALFUNCTIONING PARTS WITH “COMPONENT DIAGNOSIS”

Perform the diagnosis with “Component diagnosis” of the applicable system.

>> GO TO 5.

5.

REPAIR OR REPLACE THE MALFUNCTIONING PARTS

Repair or replace the specified malfunctioning parts.

>> GO TO 6.

6.

FINAL CHECK

Check that malfunctions are not reproduced when obtaining the malfunction information from the customer,
referring to the symptom inspection result in step 2.

Are the malfunctions corrected?

YES

>> INSPECTION END

NO

>> GO TO 3.

INSPECTION AND ADJUSTMENT

PWC-5

< BASIC INSPECTION >

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INSPECTION AND ADJUSTMENT

ADDITIONAL SERVICE WHEN REMOVING BATTERY NEGATIVE TERMINAL

ADDITIONAL SERVICE WHEN REMOVING BATTERY NEGATIVE TERMINAL : De-
scription

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When the negative terminal of battery is disconnected, the initialization is necessary.
If any of the following operations are performed, the initialization is necessary as well as when the negative
terminal of battery is disconnected.
• Power supply to the power window main switch or power window motor is cut off by the removal 

of battery terminal or the battery fuse is blown.

• Disconnection and connection of power window main switch harness connector.
• Removal and installation of motor from regulator assembly.
• Operation of regulator assembly as an independent unit.
• Removal and installation of glass.
• Removal and installation of door glass run.
The following specified operations can not be performed under the non-initialized condition.
• Auto-up operation
• Anti-pinch function

ADDITIONAL SERVICE WHEN REMOVING BATTERY NEGATIVE TERMINAL : Spe-
cial Repair Requirement

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INITIALIZATION PROCEDURE

1.

Disconnect battery negative terminal or power window main switch connector. Reconnect it after a minute
or more. 

2.

Turn ignition switch ON.

3.

Operate power window switch to fully open the window. (This operation is unnecessary if the window is
already fully open)

4.

Continue pulling the power window switch UP (AUTO-UP operation). Even after glass stops at fully closed
position, keep pulling the switch for 2 seconds or more. 

5.

Initializing procedure is completely.

6.

Inspect anti-pinch function.

CHECK ANTI-PINCH FUNCTION

1.

Fully open the door window.

2.

Place a piece of wood near fully closed position.

3.

Close door glass completely with AUTO-UP.

• Check that glass lowers for approximately 150 mm (5.9 in) or 2 seconds without pinching piece of wood and

stops.

• Check that glass does not rise when operating the power window main switch while lowering.

CAUTION:

• Perform initial setting when auto-up operation or anti-pinch function does not operate normally.
• Check that AUTO-UP operates before inspection when system initialization is performed.
• Do not check with hands and other body parts because they may be pinched. Do not get pinched.
• It may switch to fail-safe mode if open/close operation is performed continuously without full close.

Perform initial setting in that situation. Refer to 

PWC-86, "Fail Safe"

• Finish initial setting. Otherwise, next operation cannot be done.
1.

Auto-up operation

2.

Anti-pinch function

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Description

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When the control unit is replace, the initialization is necessary.
If any of the following operations are performed, the initialization is necessary as well as when the control unit
is disconnected.
• Power supply to the power window main switch or power window motor is cut off by the removal 

of battery terminal or the battery fuse is blown.

PWC-6

< BASIC INSPECTION >

INSPECTION AND ADJUSTMENT

• Disconnection and connection of power window main switch harness connector.
• Removal and installation of motor from regulator assembly.
• Disconnection and connection of battery negative terminal.
• Removal and installation of glass.
• Removal and installation of door glass run.
The following specified operations can not be performed under the non-initialized condition.
• Auto-up operation
• Anti-pinch function

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Re-
quirement

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INITIALIZATION PROCEDURE

1.

Disconnect battery negative terminal or power window main switch connector. Reconnect it after a minute
or more. 

2.

Turn ignition switch ON.

3.

Operate power window switch to fully open the window. (This operation is unnecessary if the window is
already fully open)

4.

Continue pulling the power window switch UP (AUTO-UP operation). Even after glass stops at fully closed
position, keep pulling the switch for 2 seconds or more. 

5.

Initializing procedure is completely.

6.

Inspect anti-pinch function.

CHECK ANTI-PINCH FUNCTION

1.

Fully open the door window.

2.

Place a piece of wood near fully closed position.

3.

Close door glass completely with AUTO-UP.

• Check that glass lowers for approximately 150 mm (5.9 in) or 2 seconds without pinching piece of wood and

stops.

• Check that glass does not rise when operating the power window main switch while lowering.

CAUTION:

• Perform initial setting when auto-up operation or anti-pinch function does not operate normally.
• Check that AUTO-UP operates before inspection when system initialization is performed.
• Do not check with hands and other body parts because they may be pinched. Do not get pinched.
• It may switch to fail-safe mode if open/close operation is performed continuously without full close.

Perform initial setting in that situation. Refer to 

PWC-86, "Fail Safe"

• Finish initial setting. Otherwise, next operation cannot be done.
1.

Auto-up operation

2.

Anti-pinch function

POWER WINDOW SYSTEM

PWC-7

< FUNCTION DIAGNOSIS >

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FUNCTION DIAGNOSIS

POWER WINDOW SYSTEM

System Diagram

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System Description

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POWER WINDOW OPERATION

• Power window system is operable during the retained power operation timer after turning ignition switch

OFF.

• Power window main switch can open/close all windows.
• Front & rear power window switch can open/close the corresponding windows.

POWER WINDOW AUTO-OPERATION (FRONT SIDE)

• AUTO UP/DOWN operation can be performed when power window main switch turns to AUTO.
• Encoder continues detecting the movement of power window motor and output to power window switch as

the encoder pulse signal while power window motor is operating.

• Power window switch reads the changes of encoder signal and stops AUTO operation when door glass is at

fully opened/closed position.

• Auto function is inoperable in case encoder is malfunctioning.

RETAINED POWER OPERATION

Retained power operation is an additional power supply function that enables power window system to oper-
ate for 45 seconds even when ignition switch is turned OFF.

RETAINED POWER FUNCTION CANCEL CONDITIONS

• Front door CLOSE (door switch OFF) 

→

 OPEN (door switch ON).

• When ignition switch is ON again.
• When timer time passes. (45 seconds)

POWER WINDOW LOCK

Ground circuit inside power window main switch shuts off when power window lock switch is ON. This inhibits
power window switch operation except with the power window main switch.

JMKIA1829GB