Nissan Leaf. Manual - part 982

PCS

DIAGNOSIS SYSTEM (IPDM E/R)

PCS-11

< SYSTEM DESCRIPTION >

[IPDM E/R]

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DIAGNOSIS SYSTEM (IPDM E/R)

Diagnosis Description

INFOID:0000000010120287

AUTO ACTIVE TEST

Description

In auto active test mode, the IPDM E/R sends a drive signal to the following systems to check their operation.

• Rear window defogger

• Front wiper motor

• Parking lamp

• License plate lamp

• Tail lamp

• Front fog lamp

• Side marker lamp

• Headlamp (LO, HI)

Operation Procedure

NOTE:

Never perform auto active test in the following conditions.

• CONSULT is connected.

• Passenger door is open.
1. Turn the power switch OFF.
2. Turn the power switch ON, and within 20 seconds, press the driver door switch 10 times. Then turn the

power switch OFF.

3. Turn the power switch ON within 10 seconds. After that the horn sounds once and the auto active test

starts.

NOTE:

Never depress brake pedal while operating power switch so that auto active test is not activated.

4. After a series of the following operations is repeated 3 times, auto active test is completed.
NOTE:

• When auto active test mode has to be cancelled halfway through test, turn the power switch OFF.

• When auto active test is not activated, door switch may be the cause. Check door switch. Refer to 

DLK-102,

"Component Function Check"

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Inspection in Auto Active Test Mode

When auto active test mode is actuated, the following operation sequence is repeated 3 times.

Operation 
sequence

Inspection location

Operation

1

Rear window defogger

10 seconds

2

Front wiper motor

LO for 5 seconds 

→ HI for 5 seconds

3

• Parking lamp
• License plate lamp
• Tail  lamp
• Front fog lamp
• Side marker lamp

10 seconds

4

Headlamp

LO for 10 seconds 

→HI ON ⇔ OFF 5 times

PCS-12

< SYSTEM DESCRIPTION >

[IPDM E/R]

DIAGNOSIS SYSTEM (IPDM E/R)

Concept of auto active test

• IPDM E/R starts the auto active test with the door switch signals transmitted by BCM via CAN communica-

tion. Therefore, the CAN communication line between IPDM E/R and BCM is considered normal if the auto

active test starts successfully.

• The auto active test facilitates troubleshooting if any systems controlled by IPDM E/R cannot be operated.

Diagnosis chart in auto active test mode

CONSULT Function (IPDM E/R)

INFOID:0000000010120288

APPLICATION ITEM

CONSULT performs the following functions via CAN communication with IPDM E/R.

SELF DIAGNOSTIC RESULT

Refer to 

PCS-18, "DTC Index"

.

DATA MONITOR

JMMIA0657GB

Symptom

Inspection contents

Possible cause

Rear window defogger does not operate

Perform auto active test.
Does the rear window defogger 
operate?

YES

BCM signal input circuit

NO

• Rear window defogger
• Rear window defogger ground circuit
• Harness or connector between IPDM E/R 

and rear window defogger

• IPDM E/R

Any of the following components do not 
operate

• Parking  lamp
• License plate lamp
• Tail  lamp
• Front fog lamp
• Headlamp (HI, LO)
• Side marker lamp
• Front wiper motor

Perform auto active test.
Does the applicable system op-
erate?

YES

BCM signal input circuit

NO

• Lamp or motor
• Lamp or motor ground circuit
• Harness or connector between IPDM E/R 

and applicable system

• IPDM E/R

Direct Diagnostic Mode

Description

Ecu Identification

The IPDM E/R part number is displayed.

Self Diagnostic Result

The IPDM E/R self diagnostic results are displayed.

Data Monitor

The IPDM E/R input/output data is displayed in real time.

Active Test

The IPDM E/R activates outputs to test components.

CAN Diag Support Mntr

The result of transmit/receive diagnosis of CAN communication is displayed.

PCS

DIAGNOSIS SYSTEM (IPDM E/R)

PCS-13

< SYSTEM DESCRIPTION >

[IPDM E/R]

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ACTIVE TEST

CAN DIAG SUPPORT MNTR

Refer to 

LAN-14, "CAN Diagnostic Support Monitor"

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Monitor Item [Unit]

Main

Signals

Description

TAIL&CLR REQ [On/Off]

×

Indicates position light request signal received from BCM on CAN communica-
tion line

HL LO REQ [On/Off]

×

Indicates low beam request signal received from BCM on CAN communication 
line

HL HI REQ [On/Off]

×

Indicates high beam request signal received from BCM on CAN communication 
line

FR FOG REQ [On/Off]

×

Indicates front fog light request signal received from BCM on CAN communica-
tion line

FR WIP REQ [Stop/1LOW/Low/Hi]

×

Indicates front wiper request signal received from BCM on CAN communication 
line

WIP AUTO STOP [STOP P/ACT P]

×

Indicates condition of front wiper auto stop signal

WIP PROT [Off/BLOCK]

×

Indicates condition of front wiper fail-safe operation

IGN RLY1 -REQ [On/Off]

Indicates power switch ON signal received from BCM on CAN communication 
line

IGN RLY [On/Off]

×

Indicates condition of ignition relay-1

PUSH SW [On/Off]

Indicates condition of power switch

DETENT SW [On/Off]

Indicates condition of shift position (park position switch)

DTRL REQ [Off]

Indicates daytime light request signal received from BCM on CAN communica-
tion line

HOOD SW [On/Off]

Indicates condition of hood switch

THFT HRN REQ [On/Off]

Indicates theft warning horn request signal received from BCM on CAN commu-
nication line

HORN CHIRP [On/Off]

Indicates horn reminder signal received from BCM on CAN communication line

Test item

Description

HORN

This test is able to check horn operation [On].

REAR DEFOGGER

This test is able to check rear window defogger operation [On/Off].

FRONT WIPER

This test is able to check wiper motor operation [Hi/Lo/Off].

EXTERNAL LAMPS

This test is able to check external lamp operation [Fog/Hi/Lo/TAIL/Off].

PCS-14

< ECU DIAGNOSIS INFORMATION >

[IPDM E/R]

IPDM E/R

ECU DIAGNOSIS INFORMATION

IPDM E/R

Reference Value

INFOID:0000000010120289

VALUES ON THE DIAGNOSIS TOOL

Monitor Item

Condition

Value/Status

TAIL&CLR REQ

Lighting switch OFF

Off

Lighting switch 1ST, 2ND, HI or AUTO (Light is illuminated)

On

HL LO REQ

Lighting switch OFF

Off

Lighting switch 2ND HI or AUTO (Light is illuminated)

On

HL HI REQ

Lighting switch OFF

Off

Lighting switch HI

On

FR FOG REQ

Lighting switch 2ND or
AUTO (Light is illuminated)

Front fog lamp switch OFF

Off

• Front fog lamp switch ON
• Daytime running light activated 

(Only for Canada models)

On

FR WIP REQ

Power switch ON

Front wiper switch OFF

STOP

Front wiper switch INT

1LOW

Front wiper switch LO

Low

Front wiper switch HI

Hi

WIP AUTO STOP

Power switch ON

Front wiper stop position

STOP P

Any position other than front wiper 
stop position

ACT P

WIP PROT

Power switch ON

Front wiper operates normally

Off

Front wiper stops at fail-safe opera-
tion

BLOCK

IGN RLY1 -REQ

Power switch OFF or ACC

Off

Power switch ON

On

IGN RLY

Power switch OFF or ACC

Off

Power switch ON

On

PUSH SW

Release the power switch

Off

Press the power switch

On

DETENT SW

Power switch ON

Shift position in any position other 
than P

Off

Shift position in P position

On

DTRL REQ

DTRL OFF

Off

DTRL ON

On

HOOD SW

Hood closed

Off

Hood open

On

THFT HRN REQ

Not operated

Off

• Panic alarm is activated
• Theft warning alarm is activated

On

HORN CHIRP

Not operated

Off

Door locking with Intelligent Key (horn chirp mode)

On