Nissan Murano. Manual — part 1270
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
SEC-177
< ECU DIAGNOSIS INFORMATION >
[WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
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A
B
SEC
N
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Fail-safe
INFOID:0000000010038000
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
JRMWE5847GB
SEC-178
< ECU DIAGNOSIS INFORMATION >
[WITH INTELLIGENT KEY SYSTEM]
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)
SEC-179
< ECU DIAGNOSIS INFORMATION >
[WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
L
M
A
B
SEC
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:0000000010038001
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
×
B2098: IGN RELAY ON CIRC
×
B2099: IGN RELAY OFF CIRC
—
B210B: STR CONT RLY ON CIRC
—
B210C: STR CONT RLY OFF CIRC
—
B210D: STARTER RLY ON CIRC
—
B210E: STARTER RLY OFF CIRC
—
B210F: INTRLCK/PNP SW ON
—
B2110: INTRLCK/PNP SW OFF
—
SEC-180
< SYMPTOM DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
ENGINE DOES NOT START WHEN INTELLIGENT KEY IS INSIDE OF VEHICLE
SYMPTOM DIAGNOSIS
ENGINE DOES NOT START WHEN INTELLIGENT KEY IS INSIDE OF VE-
HICLE
Description
INFOID:0000000009722839
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.
• 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:0000000009722840
1.
PERFORM WORK SUPPORT
Perform “INSIDE ANT DIAGNOSIS” on Work Support in “INTELLIGENT KEY”.
Refer to
SEC-24, "INTELLIGENT KEY : CONSULT Function (BCM - INTELLIGENT KEY)"
>> GO TO 2.
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
(luggage room).
NO
>> GO TO 3.
3.
CHECK PUSH-BUTTON IGNITION SWITCH
Check push-button ignition switch.
Refer to
PCS-67, "Component Function Check"
Is the operation normal?
YES
>> GO TO 4.
NO
>> Repair or replace malfunctioning parts.
4.
CONFIRM THE OPERATION
Confirm the operation again.
Is the inspection normal?
YES
>> Check intermittent incident. Refer to
GI-44, "Intermittent Incident"
.
NO
>> GO TO 1.
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