Infiniti FX35, FX50 (S51). Manual — part 1050
EXL-196
< ECU DIAGNOSIS INFORMATION >
[XENON TYPE]
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Fail-safe
INFOID:0000000005619806
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
JCMWA4987GB
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
EXL-197
< ECU DIAGNOSIS INFORMATION >
[XENON TYPE]
C
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EXL
N
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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.
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
• 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 marker 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
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”
EXL-198
< ECU DIAGNOSIS INFORMATION >
[XENON TYPE]
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:0000000005619807
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
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.
CONSULT display
Fail-safe
Reference
No DTC is detected.
further testing
may be required.
—
—
U1000: CAN COMM CIRCUIT
×
B2098: IGN RELAY ON
×
B2099: IGN RELAY OFF
—
B2108: STRG LCK RELAY ON
—
B2109: STRG LCK RELAY OFF
—
B210A: STRG LCK STATE SW
—
B210B: START CONT RLY ON
—
B210C: START CONT RLY OFF
—
B210D: STARTER RELAY ON
—
B210E: STARTER RELAY OFF
—
B210F: INTRLCK/PNP SW ON
—
B2110: INTRLCK/PNP SW OFF
—
AFS CONTROL UNIT
EXL-199
< ECU DIAGNOSIS INFORMATION >
[XENON TYPE]
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EXL
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AFS CONTROL UNIT
Reference Value
INFOID:0000000005244778
VALUES ON THE DIAGNOSIS TOOL
CONSULT-III MONITOR ITEM
TERMINAL LAYOUT
PHYSICAL VALUES
Monitor Item
Condition
Value/Status
STR ANGLE SIG
Steering
Straight-forward
Approx. 0
°
Steering
Approx. -900
°
- +900
°
VHCL SPD
Driving at 40 km/h (25 MPH)
40 km/h
SLCT LVR POSI
Selector lever operation
P - 1
HEAD LAMP
Light switch
2ND
On
Other than 2ND
Off
AFS SW
NOTE:
The item is indicated, but not monitored.
HI SEN OTP RR
Vehicle rear height
Unloaded vehicle condition
Approx. 2.5 V
Low (Leveling operation
downward edge)
Approx. 1.6 V
(With 20-inch wheel)
Approx. 1.8 V
(With 21-inch wheel)
LEV ACTR VLTG
Headlamp leveling
Unloaded vehicle condition
Approx. 70.0%
Low (Leveling operation
downward edge)
Approx. 40.8%
(With 20-inch wheel)
Approx. 41.8%
(With 21-inch wheel)
SWVL SEN RH
Right headlamp swivel activation
Standard position
Approx. 0
°
Activation
Positive degree (+
°
)
SWVL SEN LH
Left headlamp swivel activation
Standard position
Approx. 0
°
Activation
Positive degree (+
°
)
SWVL ANGLE RH
Right headlamp swivel activation
Standard position
Approx. 0
°
Activation
Positive degree (+
°
)
SWVL ANGLE LH
Left headlamp swivel activation
Standard position
Approx. 0
°
Activation
Positive degree (+
°
)
JPLIA0176ZZ
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