Nissan Murano. Manual - part 733

 

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Nissan Murano. Manual - part 733

 

 

EXL-344

< ECU DIAGNOSIS INFORMATION >

[HALOGEN TYPE]

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

If No CAN Communication Is Available With BCM

IGNITION RELAY MALFUNCTION DETECTION FUNCTION

• IPDM E/R monitors the voltage at the contact circuit and excitation coil circuit of the ignition relay inside it. 
• IPDM E/R judges the ignition relay error if the voltage differs between the contact circuit and the excitation

coil circuit.

• 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 CONTROL

IPDM E/R detects front wiper stop position by a front wiper auto stop 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 five times.

Control part

Fail-safe operation

Cooling fan

• Turns ON the cooling fan relay-2 and the cooling fan relay-3 when ignition switch is 

turned ON (Cooling fan operates at HI)

• Turns OFF the cooling fan relay-1, the cooling fan relay-2 and the cooling fan relay-3 

when the ignition switch is turned OFF (Cooling fan does not operate)

A/C compressor

A/C relay OFF

Alternator

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

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
• Side  maker  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

• 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/AUTO mode and the 
front wiper motor is operating.

Front fog lamps

Front fog lamp relay OFF

Horn

Horn OFF

Ignition relay

The status just before activation of fail-safe is maintained.

Starter motor

Starter control relay OFF

Voltage judgment

IPDM E/R judgment

Operation

Ignition relay contact side

Ignition relay excitation coil 

side

ON

ON

Ignition relay ON normal

OFF

OFF

Ignition relay OFF normal

ON

OFF

Ignition relay ON stuck

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

utes

OFF

ON

Ignition relay OFF stuck

Detects DTC “B2099: IGN RELAY OFF”

Ignition switch

Front wiper switch

Front wiper stop position signal

ON

OFF

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

ON

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

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

EXL-345

< ECU DIAGNOSIS INFORMATION >

[HALOGEN TYPE]

C

D

E

F

G

H

I

J

K

M

A

B

EXL

N

O

P

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.

STARTER MOTOR PROTECTION FUNCTION

IPDM E/R turns OFF the starter control relay to protect the starter motor when the starter control relay remains
active for 90 seconds.

DTC Index

INFOID:0000000010092662

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.

- The number is fixed to 39 until the self-diagnosis results are erased if it is over 39.

×

: Applicable

CONSULT display

Fail-safe

Refer to

No DTC is detected.
further testing
may be required.

U1000: CAN COMM CIRCUIT

×

PCS-15

B2098: IGN RELAY ON CIRC

×

PCS-16

B2099: IGN RELAY OFF CIRC

PCS-18

B210B: STR CONT RLY ON CIRC

SEC-79

B210C: STR CONT RLY OFF CIRC

SEC-80

B210D: STARTER RLY ON CIRC

SEC-81

B210E: STARTER RLY OFF CIRC

SEC-83

B210F: INTRLCK/PNP SW ON

SEC-85

B2110: INTRLCK/PNP SW OFF

SEC-87

EXL-346

< SYMPTOM DIAGNOSIS >

[HALOGEN TYPE]

EXTERIOR LIGHTING SYSTEM SYMPTOMS

SYMPTOM DIAGNOSIS

EXTERIOR LIGHTING SYSTEM SYMPTOMS

Symptom Table

INFOID:0000000009723073

CAUTION:

Perform the self-diagnosis with CONSULT before the symptom diagnosis. Perform the trouble diagno-
sis if any DTC is detected.

Symptom

Possible cause

Inspection item

Headlamp (HI) is not 
turned ON.

One side

• Fuse
• Halogen bulb (HI)
• Harness between IPDM E/R 

and the headlamp high

• IPDM E/R

Headlamp (HI) circuit
Refer to 

EXL-223

.

Both sides

Symptom diagnosis
 “BOTH SIDE HEADLAMPS (HI) ARE NOT TURNED ON”
Refer to 

EXL-349

.

Headlamp (HI) is not 
turned OFF.

When ignition switch is 
turned ON.

When ignition switch is 
turned OFF.

IPDM E/R

High beam indicator lamp is not turned ON.
[The headlamp (HI) is turned ON.]

Combination meter

• Combination meter 

Data monitor “HI-BEAM IND”

• BCM (HEAD LAMP)

Active test “HEADLAMP”

Headlamp (LO) is not 
turned ON.

One side

• Fuse
• Halogen bulb (LO)
• Harness between IPDM E/R 

and the headlamp low

• IPDM E/R

Headlamp (LO) circuit
Refer to 

EXL-225

.

Both sides

Symptom diagnosis
“BOTH SIDE HEADLAMPS (LO) ARE NOT TURNED ON”
Refer to 

EXL-350

.

Headlamp (LO) is not 
turned OFF.

When ignition switch is 
turned ON.

When ignition switch is 
turned OFF.

IPDM E/R

Headlamp is not turned ON/OFF with the lighting 
switch AUTO.

• Combination switch
• Harness between the combina-

tion switch and BCM

• BCM

Combination switch
Refer to 

BCS-94

.

• Optical sensor
• Harness between the optical 

sensor and BCM

• BCM

Optical sensor
Refer to 

EXL-236

.

Front fog lamp is not 
turned ON.

One side

• Front fog lamp bulb
• Harness between IPDM E/R 

and the front fog lamp

• Front fog lamp
• IPDM E/R

Front fog lamp circuit
Refer to 

EXL-227

.

Both sides

Symptom diagnosis
“BOTH SIDE FRONT FOG LAMPS ARE NOT TURNED ON”
Refer to 

EXL-352

.

Front fog lamp is not turned ON.

Parking lamp is not turned ON.

• Parking lamp bulb
• Harness between IPDM E/R 

and the front combination lamp

• Front combination lamp
• IPDM E/R

Parking lamp circuit
Refer to 

EXL-229

.

EXTERIOR LIGHTING SYSTEM SYMPTOMS

EXL-347

< SYMPTOM DIAGNOSIS >

[HALOGEN TYPE]

C

D

E

F

G

H

I

J

K

M

A

B

EXL

N

O

P

Front side marker lamp is not turned ON.

• Front side marker lamp bulb
• Harness between IPDM E/R 

and the front side marker lamp

• IPDM E/R

Front side marker lamp circuit
Refer to 

EXL-231

.

Parking lamp and front side marker lamp are not 
turned ON.

• Fuse
• Harness between IPDM E/R 

and the front combination lamp

• IPDM E/R

Parking lamp circuit
Refer to 

EXL-229

.

Tail lamp is not turned ON.

• Harness between IPDM E/R 

and the rear combination lamp

• Rear combination lamp

Tail lamp circuit
Refer to 

EXL-241

.

License plate lamp is not turned ON.

• License plate lamp bulb
• Harness between IPDM E/R 

and the license plate lamp

• License plate lamp

License plate lamp circuit
Refer to 

EXL-243

.

Tail lamp and the license plate lamp are not turned 
ON.

• Fuse
• Harness between IPDM E/R 

and the rear combination lamp

• IPDM E/R

License plate lamp circuit
Refer to 

EXL-243

.

• Parking lamp, tail lamp, side marker lamp and li-

cense plate lamp are not turned ON.

• Parking lamp, tail lamp, side marker lamp and li-

cense plate lamp are not turned OFF.

(Each illumination is turned ON/OFF.)

Symptom diagnosis
“PARKING, LICENSE PLATE AND TAIL LAMPS ARE NOT TURNED 
ON”
Refer to 

EXL-351

.

Tail lamp indicator is not turned ON.
(Parking, tail lamps are turned ON.)

Combination meter

• Combination meter

Data monitor “LIGHT IND”

• BCM (HEAD LAMP)

Active test “TAIL LAMP”

Turn signal lamp does not 
blink.

Indicator lamp is nor-
mal.
(Applicable side per-
forms the high flasher 
activation.)

• Harness between BCM and 

each turn signal lamp

• Turn signal lamp bulb

Turn signal circuit
Refer to 

EXL-233

.

Indicator lamp is includ-
ed.

• Combination switch
• Harness between the combina-

tion switch and BCM

• BCM

Combination switch
Refer to 

BCS-47

.

Turn signal indicator lamp 
does not blink.
(Turn signal indicator 
lamp is normal.)

One side

Combination meter

Both sides
(Always)

• Turn indicator signal
- BCM
• Combination meter

• Combination meter 

Data monitor “TURN IND”

• BCM (FLASHER)

Active test “FLASHER”

Both sides
(Only when activating 
hazard warning lamp 
with the ignition switch 
OFF)

• Combination meter power sup-

ply and the ground circuit

• Combination meter

Combination meter
Power supply and the ground circuit
Refer to 

MWI-44

.

• Hazard warning lamp does not activate.
• Hazard warning lamp continues activating.
(Turn signal is normal.)

• Hazard switch
• Harness between the hazard 

switch and BCM

• BCM

Hazard switch
Refer to 

EXL-239

.

Symptom

Possible cause

Inspection item

 

 

 

 

 

 

 

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