Content .. 488 489 490 491 ..

Nissan March K13. Manual - part 490

PCS-42

< ECU DIAGNOSIS INFORMATION >

[IPDM E/R (WITHOUT I-KEY)]

IPDM E/R

(B)

Ground

—

Ignition switch ON

0 V

(P)

Ground

CAN-L

Input/

Output

—

(L)

Ground

CAN-H

Input/

Output

—

(P)

—–

Front fog lamp relay con-
trol

—

(SB)

Ground

Horn relay control

Output

The horn is deactivated

Battery voltage

The horn is activated

0 V

(V)

Ground

Front wiper stop position

Input

Ignition
switch
ON

Front wiper stop position

0 V

Any position other than
front wiper stop position

Battery voltage

(W)

Ground

Ignition relay power sup-
ply

Output

Ignition switch ON

0 V

At engine cranking

Battery voltage

(R)

Ground

Starter motor

Output

Ignition switch ON

0 V

At engine cranking

Battery voltage

(P)

Ground

Cooling fan relay power
supply

Output

Cooling fan OFF

0 V

Cooling fan operated

Battery voltage

(G)

Ground

Battery power supply

Output

Ignition switch OFF

0 V

Ignition switch ON

Battery voltage

(BR)

Ground

Fuel pump

Output

• Approximately 1 second after

turning the ignition switch ON

• Engine running

0 - 1.5 V

Approximately 1 second or more af-
ter turning the ignition switch ON

Battery voltage

(L)

Ground

Ignition relay power sup-
ply

Output

Ignition switch OFF

0 V

Ignition switch ON

Battery voltage

(G)

Ground

ECM relay power supply

Output

Ignition switch OFF
(More than a few seconds after turn-
ing ignition switch OFF)

0 V

• Ignition switch ON
• Ignition switch OFF

(For a few seconds after turning
ignition switch OFF)

Battery voltage

(L)

Ground

Headlamp LO (LH)

Output

Ignition
switch
ON

Lighting switch OFF

0 V

Lighting switch 2ND

Battery voltage

(P)

Ground

Headlamp LO (RH)

Output

Ignition
switch
ON

Lighting switch OFF

0 V

Lighting switch 2ND

Battery voltage

(LG)

Ground

Oil pressure switch

Input

Ignition
switch
ON

Engine stopped

0 V

Engine running

Battery voltage

(GR)

Ground

Fuel pump relay control

Output

• Approximately 1 second after

turning the ignition switch ON

• Engine running

0 - 1.0 V

Approximately 1 second or more af-
ter turning the ignition switch ON

Battery voltage

Terminal NO.

(Wire color)

Description

Condition

Value

(Approx.)

Signal name

Input/

Output

–

PCS

IPDM E/R

PCS-43

< ECU DIAGNOSIS INFORMATION >

[IPDM E/R (WITHOUT I-KEY)]

(R/W)

Ground

ECM power supply

Output

Ignition switch OFF
(More than a few seconds after turn-
ing ignition switch OFF)

0 V

• Ignition switch ON
• Ignition switch OFF

(For a few seconds after turning
ignition switch OFF)

Battery voltage

(O)

Ground

Alternator control

Output

Ignition switch OFF or ACC

0 V

Ignition switch ON

6 V

(P)

Ground

ECM relay control

Output

Ignition switch OFF
(More than a few seconds after turn-
ing ignition switch OFF)

0 - 1.0 V

• Ignition switch ON
• Ignition switch OFF

(For a few seconds after turning
ignition switch OFF)

Battery voltage

(LG)

Ground

Front wiper LO

Output

Ignition
switch
ON

Front wiper switch OFF

0 V

Front wiper switch LO

Battery voltage

(GR)

Ground

Front wiper HI

Output

Ignition
switch
ON

Front wiper switch OFF

0 V

Front wiper switch HI

Battery voltage

(B)

Ground

—

Ignition switch ON

0 V

(BR)

Ground

ABS actuator and electric
unit (control unit) power
supply

Output

Ignition switch OFF

Battery voltage

(R)

Ground

TCM power supply

Output

Ignition switch OFF

Battery voltage

(P)

Ground

Illuminations

Output

Ignition
switch
ON

Lighting switch OFF

0 V

Lighting switch 1ST

Battery voltage

(R)

Ground

Tail lamp

Output

Ignition
switch
ON

Lighting switch OFF

0 V

Lighting switch 1ST

Battery voltage

(G)

Ground

Headlamp HI (LH)

Output

Ignition
switch
ON

Lighting switch OFF

0 V

• Lighting switch HI
• Lighting switch PASS

Battery voltage

(Y)

Ground

Headlamp HI (RH)

Output

Ignition
switch
ON

Lighting switch OFF

0 V

• Lighting switch HI
• Lighting switch PASS

Battery voltage

(V)

Ground

A/C relay power supply

Output

Engine
running

A/C switch OFF

0 V

A/C switch ON
(A/C compressor is op-
erating)

Battery voltage

(L/W)

Ground

Throttle control motor re-
lay power supply

Output

Ignition switch OFF
(More than a few seconds after turn-
ing ignition switch OFF)

0 V

• Ignition switch ON
• Ignition switch OFF

(For a few seconds after turning
ignition switch OFF)

Battery voltage

Terminal NO.

(Wire color)

Description

Condition

Value

(Approx.)

Signal name

Input/

Output

–

PCS-44

< ECU DIAGNOSIS INFORMATION >

[IPDM E/R (WITHOUT I-KEY)]

IPDM E/R

: L-Jetronic engine models

: D-Jetronic engine models

Fail-Safe

INFOID:0000000005914150

CAN COMMUNICATION CONTROL

When CAN communication with ECM and BCM is impossible, IPDM E/R performs fail-safe control. After CAN
communication recovers normally, it also returns to normal control.

If No CAN Communication Is Available With ECM

If No CAN Communication Is Available With BCM

(G/W)

Ground

Throttle control motor re-
lay control

Output

Ignition switch ON

→

OFF

0 – 1.0 V

↓

Battery voltage

↓

0 V

Ignition switch ON

0 – 1.0 V

(Y)

Ground

Ignition relay power sup-
ply

Output

Ignition switch OFF

0 V

Ignition switch ON

Battery voltage

(BR)

Ground

ECM power supply

Output

Ignition switch OFF

Battery voltage

(SB)

Ground

ECM power supply

Output

Ignition switch OFF
(More than a few seconds after turn-
ing ignition switch OFF)

0 V

• Ignition switch ON
• Ignition switch OFF

(For a few seconds after turning
ignition switch OFF)

Battery voltage

(L)*

(R)*

Ground

ECM relay power
supply

Output

Ignition switch OFF
(More than a few seconds after turn-
ing ignition switch OFF)

0 V

• Ignition switch ON
• Ignition switch OFF

(For a few seconds after turning
ignition switch OFF)

Battery voltage

(BR)

Ground

Transmission range
switch

Input

Select lever in any position other
than P or N (Ignition switch ON)

0 V

Select lever P or N (Ignition switch
ON)

Battery voltage

Terminal NO.

(Wire color)

Description

Condition

Value

(Approx.)

Signal name

Input/

Output

–

Control part

Fail-safe operation

Cooling fan

• The cooling fan relay turn ON when the ignition switch is turned ON (Cooling fan HI

operation)

• The cooling fan relay turn OFF when the ignition switch is turned OFF

A/C compressor

A/C relay OFF

Alternator

Outputs the power generation command signal (PWM signal) 0%

PCS

IPDM E/R

PCS-45

< ECU DIAGNOSIS INFORMATION >

[IPDM E/R (WITHOUT I-KEY)]

IGNITION RELAY MALFUNCTION DETECTION FUNCTION

• IPDM E/R monitors the voltage at the contact circuit of the ignition relay inside and ignition switch status

from BCM via CAN communication.

• IPDM E/R judges the ignition relay error if the voltage differs between the contact circuit and the ignition

switch status from BCM via CAN communication.

• If the ignition relay cannot turn OFF due to contact seizure, it activates the tail lamp relay for 10 minutes to

alert the user to the ignition relay malfunction when the ignition switch is turned OFF.

FRONT WIPER PROTECTION FUNCTION

IPDM E/R detects front wiper stop position by a front wiper stop position signal.
When a front wiper stop position signal is in the conditions listed below, IPDM E/R stops power supply to wiper
after repeating a front wiper 10 seconds activation and 20 seconds stop.

NOTE:
This operation status can be confirmed on the IPDM E/R “Data Monitor” that displays “BLOCK” for the item
“WIP PROT” while the wiper is stopped.

DTC Index

INFOID:0000000005914151

NOTE:
• The details of time display are as follows.
- CRNT: A malfunction is detected now.
- PAST: A malfunction was detected in the past.
• IGN counter is displayed on FFD (Freeze Frame data).
- The number is 0 when is detected now.
- The number increases like 1

→

2 ··· 38

→

39 after returning to the normal condition whenever IGN OFF

→

ON.

Control part

Fail-safe operation

Headlamp

• Turns ON the headlamp low relay when the ignition switch is turned ON
• Turns OFF the headlamp low relay when the ignition switch is turned OFF
• Headlamp high relay OFF

• Parking lamps
• License plate lamps
• Illuminations
• Tail lamps

• Turns ON the tail lamp relay when the ignition switch is turned ON
• Turns OFF the tail lamp relay when the ignition switch is turned OFF

Front wiper motor

• The status just before activation of fail-safe control is maintained until the ignition

switch is turned OFF while the front wiper is operating at LO or HI speed.

• The wiper is operated at LO speed until the ignition switch is turned OFF if the fail-safe

control is activated while the front wiper is set in the INT mode and the front wiper mo-
tor is operating.

• Returns automatically wiper to stop position when ignition switch is turned ON if fail-

safe control is activated while front wiper motor is operated and wiper stop in the other
position than stop position.

Horn

Horn OFF

Voltage judgment

IPDM E/R judgment

Operation

Ignition relay contact

side

Ignition switch status

from BCM

Ignition relay ON normal

—

OFF

Ignition relay OFF normal

—

OFF

Ignition relay ON stuck

• Detects DTC “B2098: IGN RELAY ON”
• Turns ON the tail lamp relay for 10 minutes

OFF

Ignition relay OFF stuck

Detects DTC “B2099: IGN RELAY OFF”

Ignition switch

Front wiper switch

Front wiper stop position signal

OFF

The front wiper stop position signal (stop position) cannot be input for 10 seconds.

The front wiper stop position signal does not change for 10 seconds.

Content .. 488 489 490 491 ..