Nissan Cube. Manual — part 690
MWI-84
< ECU DIAGNOSIS INFORMATION >
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 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 CONTROL
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 five times.
Control part
Fail-safe operation
Cooling fan
• The cooling fan relay-1, the cooling fan relay-2 and the cooling fan relay-3 turn ON
when the ignition switch is turned ON (Cooling fan HI operation)
• The cooling fan relay-1, the cooling fan relay-2 and the cooling fan relay-3 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%
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
• Side marker 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
• 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
motor is operating.
Front fog lamps
Front fog lamp relay OFF
Rear window defogger relay
Rear window defogger relay OFF
Horn
Horn OFF
Voltage judgment
IPDM E/R judgment
Operation
Ignition relay contact side
Ignition switch status from
BCM
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 stop position signal does
not change for 10 seconds.
MWI
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
MWI-85
< ECU DIAGNOSIS INFORMATION >
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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.
WITHOUT INTELLIGENT KEY : DTC Index
INFOID:0000000010247962
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
—
MWI-86
< SYMPTOM DIAGNOSIS >
THE FUEL GAUGE INDICATOR DOES NOT OPERATE
SYMPTOM DIAGNOSIS
THE FUEL GAUGE INDICATOR DOES NOT OPERATE
Description
INFOID:0000000009945735
Fuel gauge will not indicate from a certain position.
Diagnosis Procedure
INFOID:0000000009945736
1.
CHECK FLOAT INTERFERENCE
Check that the float arm interferes with or binds to other components in the fuel tank.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace malfunctioning part.
2.
CHECK FUEL LEVEL SENSOR SIGNAL CIRCUIT
Check the fuel level sensor signal circuit. Refer to
MWI-42, "Component Function Check"
Is the inspection result normal?
YES
>> Refer to
GI-40, "Intermittent Incident"
.
NO
>> Repair or replace malfunctioning parts.
MWI
THE OIL PRESSURE WARNING LAMP DOES NOT TURN ON
MWI-87
< SYMPTOM DIAGNOSIS >
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THE OIL PRESSURE WARNING LAMP DOES NOT TURN ON
Description
INFOID:0000000009945737
The oil pressure warning lamp stays off when the ignition switch is turned ON.
Diagnosis Procedure
INFOID:0000000009945738
1.
CHECK OIL PRESSURE WARNING LAMP
Perform auto active test. Refer to
PCS-10, "Diagnosis Description"
(Without I-KEY).
Is oil pressure warning lamp blinking?
YES
>> GO TO 2.
NO
>> GO TO 4.
2.
CHECK OIL PRESSURE SWITCH SIGNAL CIRCUIT
Check the oil pressure switch signal circuit. Refer to
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK OIL PRESSURE SWITCH
Perform a unit check for the oil pressure switch. Refer to
MWI-45, "Component Inspection"
.
Is the inspection result normal?
YES
>> Replace IPDM E/R.
NO
>> Replace oil pressure switch.
4.
CHECK COMBINATION METER INPUT SIGNAL
Connect CONSULT and perform an input signal check for the combination meter. Refer to
Is the inspection result normal?
YES
>> Replace combination meter.
NO
>> Replace IPDM E/R. Refer to
PCS-34, "Removal and Installation"
(With I-KEY) or
(Without I-KEY).
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