2008 NISSAN TEANA engine

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
EXL-149
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(P)GroundWasher pump power sup-
plyOutput Ignition switch ON Battery voltage
89
(W)Ground Headlamp HI (RH) OutputIgnition
switch ON Lighting switch HI
 Lighting switch PASSBattery voltage
Lighting switch OFF 0 V
90
(O)Ground Headlamp HI (LH) OutputIgnition
switch ON Lighting switch HI
 Lighting switch PASSBattery voltage
Lighting switch OFF 0 V
91
(O)Ground Parking lamp (RH) OutputIgnition
switch ONLighting switch 1ST Battery voltage
Lighting switch OFF 0 V
92
(L)Ground Parking lamp (LH) OutputIgnition
switch ONLighting switch 1ST Battery voltage
Lighting switch OFF 0 V
93
(BR)GroundHeadlamp aiming motor
(RH)OutputIgnition
switch ONLighting switch 1ST Battery voltage
Lighting switch OFF 0 V
94
(Y)GroundHeadlamp aiming motor
(LH)OutputIgnition
switch ONLighting switch 1ST Battery voltage
Lighting switch OFF 0 V
99
(W)Ground Ambient sensor ground Input Ignition switch ON 0 V
100
(SB)Ground Ambient sensor OutputIgnition switch ON
NOTE:
Changes depending to ambient tem-
perature
101
(GR)GroundRefrigerant pressure sen-
sor groundInputEngine
running Warm-up condition
 Idle speed0 V
102
(R)GroundRefrigerant pressure sen-
sorInputEngine
running Warm-up condition
 Both A/C switch and
blower fan motor switch
ON
(Compressor operates)1.0 - 4.0 V
103
(P)GroundRefrigerant pressure sen-
sor power supplyOutputIgnition switch OFF 0 V
Ignition switch ON 5.0 V
104
(LG)
Ground Hood switch OutputClose the hood Battery voltage
Open the hood 0 V Te r m i n a l N o .
(Wire color)Description
ConditionVa l u e
(Approx.)
Signal nameInput/
Output +−
JSNIA0014GB

EXL-150
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IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Wiring Diagram - IPDM E/R -
INFOID:0000000003894274
JCMWM1682GB

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
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JCMWM1683GB

EXL-152
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IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
JCMWM1684GB

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
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Fail-safeINFOID:0000000003894275
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
JCMWM1685GB

EXL-154
< ECU DIAGNOSIS >[XENON TYPE]
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 auto stop 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
 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
Headlamp washer relay Headlamp washer relay OFF
Voltage judgment
IPDM E/R judgment Operation
Ignition relay contact sideIgnition 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”

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
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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.
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 IndexINFOID:0000000003894276
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 auto stop signal
ONOFFThe front wiper auto stop signal (stop posi-
tion) cannot be input for 10 seconds.
ONThe front wiper auto stop signal does not
change for 10 seconds.
CONSULT display Fail-safe Refer to
No DTC is detected.
further testing
may be required.——
U1000: CAN COMM CIRCUIT×PCS-16
B2098: IGN RELAY ON×PCS-17
B2099: IGN RELAY OFF —PCS-18
B2108: STRG LCK RELAY ON —SEC-96
B2109: STRG LCK RELAY OFF —SEC-97
B210A: STRG LCK STATE SW —SEC-98
B210B: START CONT RLY ON —SEC-102
B210C: START CONT RLY OFF —SEC-103
B210D: STARTER RELAY ON —SEC-104
B210E: STARTER RELAY OFF —SEC-105
B210F: INTRLCK/PNP SW ON —SEC-107
B2110: INTRLCK/PNP SW OFF —SEC-109

EXL-162
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AUTO LEVELIZER CONTROL UNIT
DTC Inspection Priority Chart
INFOID:0000000003805625
If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.
B2082: SENSOR OUT OF
RANGEAfter engine start
[Less than 5 seconds after ig-
nition switch ON and vehicle
speed less than 4 km/h (2.5
MPH)]Fix with the light axis facing
downward
When sensor signal returns to
normal range
While driving
[5 seconds or more after igni-
tion switch ON or vehicle
speed 4 km/h (2.5 MPH) or
more]Maintain the light axis at the
time of DTC detection
B2083: SEN SIG NOT PLAU-
SIBLE Maintain the aiming motor drive signal output at the time of
DTC detection
 Maintain the light axis at the time of DTC detectionIgnition switch OFF
B2084: VOLTAGE UNDER
LIMITAfter engine start
[Less than 5 seconds after ig-
nition switch ON and vehicle
speed less than 4 km/h (2.5
MPH)]Fix with the light axis facing
downward
Ignition switch OFF
While driving
[5 seconds or more after igni-
tion switch ON or vehicle
speed 4 km/h (2.5 MPH) or
more]Maintain the light axis at the
time of DTC detection
B2085: LOWBEAM SIG
OPEN LINEAfter engine start
[Less than 5 seconds after ig-
nition switch ON and vehicle
speed less than 4 km/h (2.5
MPH)]Fix with the light axis facing
downward
Ignition switch OFF
While driving
[5 seconds or more after igni-
tion switch ON or vehicle
speed 4 km/h (2.5 MPH) or
more]Maintain the light axis at the
time of DTC detection
B2086: FRQ. OVER LIMITAfter engine start
[Less than 5 seconds after ig-
nition switch ON and vehicle
speed less than 4 km/h (2.5
MPH)]Fix with the light axis facing
downward
Ignition switch OFF
While driving
[5 seconds or more after igni-
tion switch ON or vehicle
speed 4 km/h (2.5 MPH) or
more]Maintain the light axis at the
time of DTC detection
B2087: SHORT TO GROUND Maintain the light axis at the time of DTC detection Ignition switch OFF
B2088: SHORT TO BATTERY Maintain the light axis at the time of DTC detection Ignition switch OFF
B208A: PARA NOT PROG Fix aiming motor drive signal output to approximately 0 VWrite configuration is complet-
ed DTC Fail-safe Cancellation
Priority DTC
1 B2080: ECU TROUBLE
 B208A: PARA NOT PROG