Infiniti G35 (V35) Sedan. Manual — part 1211
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
SEC-199
< ECU DIAGNOSIS >
[INTELLIGENT KEY SYSTEM]
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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 turns OFF when the ignition switch is turned ON.
FRONT WIPER CONTROL
IPDM E/R detects front wiper stop position by a front wiper auto stop signal.
When a front wiper auto stop signal is in the conditions listed below, IPDM E/R stops power supply to wiper
after repeating a front wiper 10 second activation and 20 second stop five times.
NOTE:
Control part
Fail-safe operation
Cooling fan
• Outputs the pulse duty signal (PWM signal) 100% when the ignition switch is turned
ON
• Outputs the pulse duty signal (PWM signal) 0% 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
• 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 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
DTC
Ignition switch
Ignition relay
Tail lamp relay
—
ON
ON
—
—
OFF
OFF
—
B2098: IGN RELAY ON
OFF
ON
ON (10 minutes)
B2099: IGN RELAY OFF
ON
OFF
—
Ignition switch
Front wiper switch
Auto stop signal
ON
OFF
Front wiper stop position signal cannot be
input 10 seconds.
ON
The signal does not change for 10 seconds.
SEC-200
< ECU DIAGNOSIS >
[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.
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:0000000000961496
*1: Only for the models with AFS
*2: Only for the models without AFS (The display is fixed to CRNT until the self-diagnosis results are erased when the malfunctions were
found in the past.)
NOTE:
The details of TIME display are as follows.
• CRNT: The malfunctions that are detected now
• 1 - 39: The number is indicated when it is normal at present and a malfunction was detected in the past. It
increases like 0
→
1
→
2 · · · 38
→
39 after returning to the normal condition whenever IGN OFF
→
ON. It is
fixed to 39 until the self-diagnosis results are erased if it is over 39. It returns to 0 when a malfunction is
detected again in the process.
CONSULT display
Fail-safe
TIME
NOTE
Refer to
No DTC is detected.
further testing
may be required.
—
—
—
—
U1000: CAN COMM CIRCUIT
×
CRNT
1 –39
*1
CRNT
*2
B2098: IGN RELAY ON
×
CRNT
1 – 39
B2099: IGN RELAY OFF
—
CRNT
1 – 39
B2108: STRG LCK RELAY ON
—
CRNT
1 – 39
B2109: STRG LCK RELAY OFF
—
CRNT
1 – 39
B210A: STRG LCK STATE SW
—
CRNT
1 – 39
B210B: START CONT RLY ON
—
CRNT
1 – 39
B210C: START CONT RLY OFF
—
CRNT
1 – 39
B210D: STARTER RELAY ON
—
CRNT
1 – 39
B210E: STARTER RELAY OFF
—
CRNT
1 – 39
B210F: INTRLCK/PNP SW ON
—
CRNT
1 – 39
B2110: INTRLCK/PNP SW OFF
—
CRNT
1 – 39
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION SYMPTOMS
SEC-201
< SYMPTOM DIAGNOSIS >
[INTELLIGENT KEY SYSTEM]
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SYMPTOM DIAGNOSIS
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION SYMPTOMS
Symptom Table
INFOID:0000000000961497
Engine can not be started with all Intelligent Keys.
CAUTION:
• Follow Trouble Diagnosis Flowchart referring to “
”. Determine malfunctioning
condition before performing this diagnosis.
• Check that vehicle is under the condition shown in “Conditions of vehicle” before starting diagno-
sis.
• 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.
• Use Intelligent Key with registered Intelligent Key ID.
• One or more of Intelligent Keys with registered Intelligent Key ID is in the passenger compartment.
Diagnosis/service procedure
Reference page
1. Check power supply and ground circuit
BCM
IPDM E/R
2. Check push button ignition switch
3. Check Intermittent Incident
SEC-202
< SYMPTOM DIAGNOSIS >
[INTELLIGENT KEY SYSTEM]
VEHICLE SECURITY SYSTEM SYMPTOMS
VEHICLE SECURITY SYSTEM SYMPTOMS
Symptom Table
INFOID:0000000000961498
*: Check the system is in the armed phase.
Procedure
Diagnostic procedure
Refer to page
Symptom
1
Vehicle security sys-
tem cannot be set by
····
Door switch
Check door switch
Hood switch
Check hood switch
Trunk
Check trunk room lamp switch
Door outside key
Check key cylinder switch
Intelligent Key
Check Intelligent Key.
—
Check Intermittent Incident
Security indicator does not turn ON.
Check vehicle security indicator
Check Intermittent Incident
2
* Vehicle security
system does not
sound alarm when ····
Any door is opened.
Check door switch
Check Intermittent Incident
3
Vehicle security
alarm does not acti-
vate.
Horn alarm
Check horn
Check Intermittent Incident
Head lamp alarm
Check head lamp alarm
Check Intermittent Incident
4
Vehicle security sys-
tem cannot be can-
celed by ····
Door outside key
Check key cylinder switch
Check Intermittent Incident
Intelligent Key
Check Intelligent Key
Check Intermittent Incident
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