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Nissan Murano Z51. Manual - part 1290

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

SEC-207

< ECU DIAGNOSIS INFORMATION >

[WITH INTELLIGENT KEY SYSTEM]

SEC

If No CAN Communication Is Available With BCM

*: Only for models with steering lock unit.

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

Steering lock unit

Steering lock relay OFF

Voltage judgment

IPDM E/R judgment

Operation

Ignition relay contact side

Ignition relay excitation coil

side

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 min-

utes

OFF

Ignition relay OFF stuck

Detects DTC “B2099: IGN RELAY OFF”

SEC-208

< ECU DIAGNOSIS INFORMATION >

[WITH INTELLIGENT KEY SYSTEM]

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

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:0000000005681384

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

: For models without steering lock unit this DTC is not applied.

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 auto stop signal does not
change for 10 seconds.

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

PCS-16

B2099: IGN RELAY OFF

—

PCS-17

B2108: STRG LCK RELAY ON

—

SEC-99

B2109: STRG LCK RELAY OFF

—

SEC-100

B210A: STRG LCK STATE SW

—

SEC-101

B210B: START CONT RLY ON

—

SEC-105

B210C: START CONT RLY OFF

—

SEC-106

B210D: STARTER RELAY ON

—

SEC-107

B210E: STARTER RELAY OFF

—

SEC-108

B210F: INTRLCK/PNP SW ON

—

SEC-110

B2110: INTRLCK/PNP SW OFF

—

SEC-112

ENGINE DOES NOT START WHEN INTELLIGENT KEY IS INSIDE OF VEHICLE

SEC-209

< SYMPTOM DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

SEC

SYMPTOM DIAGNOSIS

ENGINE DOES NOT START WHEN INTELLIGENT KEY IS INSIDE OF VE-
HICLE

Description

INFOID:0000000005515638

Engine does not start when push-button ignition switch is pressed while carrying Intelligent Key.
NOTE:
• Check that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis, and

check each symptom.

• The engine start function, door lock function, power distribution system, and NATS-IVIS/NVIS in the Intelli-

gent Key system are closely related to each other regarding control. The vehicle security function can oper-
ate only when the door lock and power distribution system are operating normally.

Conditions of Vehicle (Operating Conditions)

• “ENGINE START BY I-KEY” in “WORK SUPPORT” is ON when setting on CONSULT-III.
• Intelligent Key is not inserted in key slot.
• One or more of Intelligent Keys with registered Intelligent Key ID is in the vehicle.

Diagnosis Procedure

INFOID:0000000005515639

PERFORM WORK SUPPORT

Perform “INSIDE ANT DIAGNOSIS” on Work Support in “INTELLIGENT KEY”.
Refer to

SEC-25, "INTELLIGENT KEY : CONSULT-III Function (BCM - INTELLIGENT KEY)"

>> GO TO 2.

PERFORM SELF-DIAGNOSTIC RESULT

Perform Self-Diagnostic Result in “BCM”, and check whether or not DTC of inside key antenna is detected.

Is DTC detected?

YES

>> Refer to

DLK-91, "DTC Logic"