Nissan Qashqai (2007-2010). Manual — part 1236
SEC-144
< ECU DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Fail Safe
INFOID:0000000001102193
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
JCKWA0315GB
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
SEC-145
< ECU DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
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*1: HR engine models
*2: MR engine and K9K engine models
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.
NOTE:
The tail lamp relay is turned OFF when the ignition switch is turned ON.
Front wiper control
IPDM E/R detects the front wiper stop position with the front wiper auto stop signal.
When the front wiper auto stop signal is in the conditions listed below, IPDM E/R repeats a front wiper 10 sec-
onds operation and 20 seconds stop five times.
NOTE:
Control part
Fail-safe in operation
Cooling fan
• The cooling fan relay-2*
1
or the cooling fan relay-3*
2
turns ON when the ignition switch
is turned ON
• Turns off the fan motor low relay when the ignition switch is turned OFF
A/C compressor
A/C relay OFF
Control part
Fail-safe in operation
Headlamp
• The headlamp low relay turns ON when the ignition switch is turned ON
• The headlamp low relay turns OFF when the ignition switch is turned OFF
• Headlamp high relay OFF
• Parking lamps
• License plate lamps
• Tail lamps
• Illuminations
• The tail lamp relay turns ON when the ignition switch is turned ON
• The tail lamp relay turns OFF 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 front 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
Starter motor
Inhibit relay OFF
Rear window defogger
Rear window defogger relay OFF
Headlamp washer
Headlamp washer relay OFF
PTC heater
PTC heater relay OFF
DTC
Ignition switch
Ignition relay
Tail lamp relay
—
ON
ON
—
—
OFF
OFF
—
B2098: IGN RLY ON
OFF
ON
ON (10 minutes)
B2099: IGN RLY OFF
ON
OFF
—
Ignition switch
Front wiper switch
Front wiper auto stop signal
ON
OFF
The front wiper auto stop signal (stop posi-
tion) cannot be input for 10 seconds.
ON
The front wiper auto stop signal does not
change for 10 seconds.
SEC-146
< ECU DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
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:0000000001102194
NOTE:
The details of time display are as follows.
• CRNT: The malfunctions that are detected now.
• PAST: The number is indicated when it is normal at present and a malfunction was detected in the past.
CONSULT display
Fail-safe
Timing
NOTE
Reference page
No DTC is detected.
further testing
may be required.
—
—
—
—
U1000: CAN COMM CIRCUIT
×
CRNT
PAST
B2098: IGN RELAY ON
×
CRNT
PAST
B2099: IGN RELAY OFF
—
CRNT
PAST
B2100: EEPROM
—
CRNT
PAST
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION SYMPTOMS
SEC-147
< SYMPTOM DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
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SYMPTOM DIAGNOSIS
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION SYMPTOMS
Symptom Table
INFOID:0000000000944697
NOTE:
• Before performing the diagnosis in the following table, check “
”.
• Check that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis, and
check each symptom.
• If the following symptoms are detected, check systems shown in the “Diagnosis/service procedure” column
in this order.
CONDITIONS OF VEHICLE (OPERATING CONDITIONS)
• Engine start function is ON when setting on CONSULT-III.
• Mechanical key is not inserted in key cylinder.
• One or more of Intelligent Keys with registered Intelligent Key ID is in the vehicle.
Symptom
Diagnosis/service procedure
Reference
page
Ignition switch does not turn on with Intelligent Key.
[KEY warning lamp (green) illuminates.]
1.
Check steering lock unit.
2.
Replace Intelligent Key unit.
Ignition switch does not turn on with Intelligent Key.
[KEY warning lamp does not illuminate.]
1.
Check Intelligent Key unit power supply and ground cir-
cuit.
2.
Check ignition knob switch.
3.
Check key switch.
4.
Replace Intelligent Key unit.
Ignition switch does not turn on with Intelligent Key.
[KEY warning lamp (red) illuminates.]
1.
Check inside key antenna.
2.
Replace Intelligent Key unit.
Ignition switch does not turn on with mechanical key
Check key switch.
Engine can not start
1.
CHeck key switch.
2.
CHeck stop lamp switch.
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