2008 NISSAN TEANA relay

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
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< ECU DIAGNOSIS >
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(R/B)Ground ECM relay power supply OutputIgnition switch OFF
(More than a few seconds after turning
ignition switch OFF)0 V
 Ignition switch ON
 Ignition switch OFF
(For a few seconds after turning igni-
tion switch OFF)Battery voltage
51
(LG)Ground Ignition relay power supply OutputIgnition switch OFF 0 V
Ignition switch ON Battery voltage
52
(Y/G)Ground Ignition relay power supply OutputIgnition switch OFF 0 V
Ignition switch ON Battery voltage
53
(R/W)Ground ECM relay power supply OutputIgnition switch OFF
(More than a few seconds after turning
ignition switch OFF)0 V
 Ignition switch ON
 Ignition switch OFF
(For a few seconds after turning igni-
tion switch OFF)Battery voltage
54
(G/W)GroundThrottle control motor re-
lay power supplyOutputIgnition switch OFF
(More than a few seconds after turning
ignition switch OFF)0 V
 Ignition switch ON
 Ignition switch OFF
(For a few seconds after turning igni-
tion switch OFF)Battery voltage
55
(W/L)Ground ECM power supply Output Ignition switch OFF Battery voltage
56
(R/Y)Ground Ignition relay power supply OutputIgnition switch OFF 0 V
Ignition switch ON Battery voltage
57
(O)Ground Ignition relay power supply OutputIgnition switch OFF 0 V
Ignition switch ON Battery voltage
58
(Y)Ground Ignition relay power supply OutputIgnition switch OFF 0 V
Ignition switch ON Battery voltage
69
(W/B)Ground ECM relay control OutputIgnition switch OFF
(More than a few seconds after turning
ignition switch OFF)Battery voltage
 Ignition switch ON
 Ignition switch OFF
(For a few seconds after turning igni-
tion switch OFF)0 - 1.5 V
70
(O)GroundThrottle control motor re-
lay controlOutputIgnition switch ON → OFF0 -1.0 V
↓
Battery voltage
↓
0 V
Ignition switch ON 0 - 1.0 V
72
(R/B)Ground Starter relay control InputIgnition
switch ONSelector lever in any posi-
tion other than P or N0 V
Selector lever P or N Battery voltage
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(Y)Ground Ignition relay power supply OutputIgnition switch OFF 0 V
Ignition switch ON Battery voltage Te r m i n a l N o .
(Wire color)Description
ConditionVa l u e
(Approx.)
Signal nameInput/
Output +−

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< ECU DIAGNOSIS >
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
75
(P/L)Ground Oil pressure switch InputIgnition
switch ONEngine stopped 0 V
Engine running Battery voltage
76
(SB)GroundPower generation com-
mand signalOutputIgnition switch ON
6.3 V
40% is set on “ACTIVE TEST”, “AL-
TERNATOR DUTY” of “ENGINE”
3.8 V
80% is set on “ACTIVE TEST”, “AL-
TERNATOR DUTY” of “ENGINE”
1.4 V
77
(GR)Ground Fuel pump relay control Output Approximately 1 second after turning
the ignition switch ON
 Engine running0 - 1.5 V
Approximately 1 second or more after
turning the ignition switch ONBattery voltage
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(B/W)Ground Starter motor Output At engine cranking Battery voltage
83
(Y)Ground Headlamp LO (RH) OutputIgnition
switch ONLighting switch OFF 0 V
Lighting switch 2ND Battery voltage
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(SB)Ground Headlamp LO (LH) OutputIgnition
switch ONLighting switch OFF 0 V
Lighting switch 2ND Battery voltage
86
(L)Ground Front fog lamp (RH) OutputLighting
switch
2ND Front fog lamp switch
ON
 Daytime running light
activated (Only for Can-
ada)Battery voltage
Front fog lamp switch OFF 0 V
87
(R)Ground Front fog lamp (LH) OutputLighting
switch
2ND Front fog lamp switch
ON
 Daytime running light
activated (Only for Can-
ada)Battery voltage
Front fog lamp switch OFF 0 V Te r m i n a l N o .
(Wire color)Description
ConditionVa l u e
(Approx.)
Signal nameInput/
Output +−
JPMIA0001GB
JPMIA0002GB
JPMIA0003GB

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< ECU DIAGNOSIS >
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:0000000003941305
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

FRONT WIPER AND WASHER SYSTEM SYMPTOMS
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< SYMPTOM DIAGNOSIS >
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Front wiper does not
stop.HI only Combination switch
BCMCombination switch
Refer to BCS-76, "
Symptom
Ta b l e".
Front wiper request signal
BCM
 IPDM E/RIPDM E/R DATA MONITOR
“FR WIP REQ”
IPDM E/R —
LO only Combination switch
BCMCombination switch
Refer to BCS-76, "
Symptom
Ta b l e".
Front wiper request signal
BCM
 IPDM E/RIPDM E/R DATA MONITOR
“FR WIP REQ”
IPDM E/R —
INT only Combination switch
BCMCombination switch
Refer to BCS-76, "
Symptom
Ta b l e".
Front wiper request signal
BCM
 IPDM E/RIPDM E/R DATA MONITOR
“FR WIP REQ”
Front wiper does not
operate normally.Intermittent adjustment
cannot be performed. Combination switch
 Harness between combination switch and BCM
BCMCombination switch
Refer to BCS-76, "
Symptom
Ta b l e".
BCM —
Intermittent control
linked with vehicle
speed cannot be per-
formed.Check the vehicle speed detection wiper setting.
Refer to WW-13, "
WIPER : CONSULT-III Function (BCM - WIPER)".
NOTE:
Factory setting of the front wiper intermittent operation is the operation without ve-
hicle speed.
Wiper is not linked to
the washer operation. Combination switch
 Harness between combination switch and BCM
BCMCombination switch
Refer to BCS-76, "
Symptom
Ta b l e".
BCM —
Does not return to stop
position [Repeatedly
operates for 10 sec-
onds and then stops
for 20 seconds. After
that, it stops the opera-
tion. (Fail-safe)] IPDM E/R
 Harness between IPDM E/R and front wiper
motor
 Front wiper motorFront wiper auto stop signal
circuit
Refer to WW-27, "
Compo-
nent Function Check".
Headlamp washer
does not operate.Headlamp washer
does not operate with
the front washer when
headlamps are turned
ON. Combination switch
 Harness between combination switch and BCM
BCM
 Headlamp washer pumpCombination switch
Refer to BCS-76, "
Symptom
Ta b l e".
 Fusible link
 Harness between fusible link and headlamp
washer relay
 Headlamp washer relay
 Harness between headlamp washer relay and
IPDM E/R
 IPDM E/R
 Harness between headlamp washer relay and
headlamp washer pump
 Harness between headlamp washer pump and
ground
 Headlamp washer pumpHeadlamp washer circuit
Refer to WW-32, "
Compo-
nent Function Check".
BCM — Symptom Probable malfunction location Inspection item

FRONT WIPER DOES NOT OPERATE
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< SYMPTOM DIAGNOSIS >
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FRONT WIPER DOES NOT OPERATE
DescriptionINFOID:0000000003761613
The front wiper does not operate under any operating conditions.
Diagnosis ProcedureINFOID:0000000003761614
1.CHECK WIPER RELAY OPERATION
IPDM E/R AUTO ACTIVE TEST
1. Start IPDM E/R auto active test. Refer to PCS-11, "
Diagnosis Description".
2. Check that the front wiper operates at the LO/HI operation.
CONSULT-III ACTIVE TEST
1. Select“FRONT WIPER” of IPDM E/R active test item.
2. With operating the test item, check front wiper operation.
Is front wiper operation normally?
YES >> GO TO 5.
NO >> GO TO 2.
2.CHECK FRONT WIPER MOTOR FUSE
1. Turn the ignition switch OFF.
2. Check that the front wiper motor 30A (#60) fuse is not fusing.
Is the fuse fusing?
YES >> Replace the fuse after repairing the applicable circuit.
NO >> GO TO 3.
3.CHECK FRONT WIPER MOTOR (GND) OPEN CIRCUIT
1. Disconnect front wiper motor connector.
2. Check continuity between front wiper motor harness connector and ground.
Does continuity exist?
YES >> GO TO 4.
NO >> Repair the harness or connector.
4.CHECK FRONT WIPER MOTOR OUTPUT VOLTAGE
CONSULT-III ACTIVE TEST
1. Disconnect front wiper motor connector.
2. Turn the ignition switch ON.
3. Select “FRONT WIPER” of IPDM E/R active test item.
4. With operating the test item, check voltage between IPDM E/R harness connector and ground. Lo : Front wiper LO operation
Hi : Front wiper HI operation
Off : Stop the front wiper.
Front wiper motor
GroundContinuity
Connector Terminal
E12 2 Existed