ignition NISSAN TEANA 2008 Service Manual

MWI-102
< ECU DIAGNOSIS >
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE
ROOM)
Reference ValueINFOID:0000000003900501
VALUES ON THE DIAGNOSIS TOOL
Monitor Item Condition Value/Status
MOTOR FAN REQ Engine idle speedChanges depending on engine
coolant temperature, air conditioner
operation status, vehicle speed,
etc.1/2/3/4
AC COMP REQ Engine runningA/C switch OFF Off
A/C switch ON
(Compressor is operating)On
TAIL&CLR REQLighting switch OFF Off
Lighting switch 1ST, 2ND, HI or AUTO (Light is illuminated) On
HL LO REQLighting switch OFF Off
Lighting switch 2ND HI or AUTO (Light is illuminated) On
HL HI REQLighting switch OFF Off
Lighting switch HI On
FR FOG REQLighting switch 2ND or
AUTO (Light is illuminated)Front fog lamp switch OFF Off
Front fog lamp switch ON On
FR WIP REQ Ignition switch ONFront wiper switch OFF Stop
Front wiper switch INT 1LOW
Front wiper switch LO Low
Front wiper switch HI Hi
WIP AUTO STOP Ignition switch ONFront wiper stop position STOP P
Any position other than front wiper
stop positionACT P
WIP PROT Ignition switch ONFront wiper operates normally Off
Front wiper stops at fail-safe opera-
tionBLOCK
IGN RLY1 -REQIgnition switch OFF or ACC Off
Ignition switch ON On
IGN RLYIgnition switch OFF or ACC Off
Ignition switch ON On
PUSH SWRelease the push-button ignition switch Off
Press the push-button ignition switch On
INTER/NP SW Ignition switch ONSelector lever in any position other
than P or NOff
Selector lever in P or N position On
ST RLY CONTIgnition switch ON Off
At engine cranking On
IHBT RLY -REQIgnition switch ON Off
At engine cranking On

MWI
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
MWI-103
< ECU DIAGNOSIS >
C
D
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F
G
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MB A
O
P
ST/INHI RLYIgnition switch ON Off
At engine cranking INHI → ST
The status of starter relay or starter control relay cannot be recognized by
the battery voltage malfunction, etc. when the starter relay is ON and the
starter control relay is OFFUNKWN
DETENT SWIgnition switch ON Press the selector button with se-
lector lever in P position
 Selector lever in any position oth-
er than POff
Release the selector button with selector lever in P position On
S/L RLY -REQNone of the conditions below are present Off
 Open the driver door after the ignition switch is turned OFF (for a few
seconds)
 Press the push-button ignition switch when the steering lock is activat-
edOn
S/L STATESteering lock is activated LOCK
Steering lock is deactivated UNLOCK
[DTC: B210A] is detected UNKWN
DTRL REQNOTE:
The item is indicated, but not monitored.Off
OIL P SWIgnition switch OFF, ACC or engine running Open
Ignition switch ON Close
HOOD SWClose the hood Off
Open the hood On
HL WASHER REQNot operating Off
Headlamp washer operating On
THFT HRN REQNot operating Off
Horn is activated with vehicle security (theft warning) system On
HORN CHIRPNot operating Off
 Door locking with Intelligent Key (horn chirp mode)
 Door locking with key fob (horn chirp mode)On
CRNRNG LMP REQNOTE:
The item is indicated, but not monitored.Off Monitor Item Condition Value/Status

MWI-104
< ECU DIAGNOSIS >
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
TERMINAL LAYOUT
PHYSICAL VALUES
JPMIA0863ZZ
Te r m i n a l N o .
(Wire color)Description
ConditionVa l u e
(Approx.)
Signal nameInput/
Output +−
1
(R)Ground Battery power supply Input Ignition switch OFF Battery voltage
2
(L)Ground Battery power supply Input Ignition switch OFF Battery voltage
4
(LG)Ground Front wiper LO OutputIgnition
switch ONFront wiper switch OFF 0 V
Front wiper switch LO Battery voltage
5
(Y)Ground Front wiper HI OutputIgnition
switch ONFront wiper switch OFF 0 V
Front wiper switch HI Battery voltage
7
(GR)GroundTail, license plate lamps &
illuminationsOutputIgnition
switch ONLighting switch OFF 0 V
Lighting switch 1ST Battery voltage
10
(BR)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

MWI
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
MWI-105
< ECU DIAGNOSIS >
C
D
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F
G
H
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K
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MB A
O
P
11
(P)GroundSteering lock unit power
supplyOutputIgnition
switch
OFFA few seconds after open-
ing the driver doorBattery voltage
Ignition
switch
LOCKPress the push-button ig-
nition switchBattery voltage
Ignition switch ACC or ON 0 V
12
(B/W)Ground Ground — Ignition switch ON 0 V
13
(SB)Ground Fuel pump power supply OutputApproximately 1 second or more after
turning the ignition switch ON0 V
 Approximately 1 second after turning
the ignition switch ON
 Engine runningBattery voltage
15
(W)Ground Ignition relay power supply OutputIgnition switch OFF 0 V
Ignition switch ON Battery voltage
16
(R)Ground Front wiper auto stop InputIgnition
switch ONFront wiper stop position 0 V
Any position other than
front wiper stop positionBattery voltage
17
(V)GroundHeadlamp washer relay
controlInputIgnition
switch ONHeadlamp washer deacti-
vatedBattery voltage
Headlamp washer activat-
ed0 V
19
(Y)Ground Ignition relay power supply OutputIgnition switch OFF 0 V
Ignition switch ON Battery voltage
20
(B)Ground Ambient sensor ground Output Ignition switch ON 0 V
21
(O)Ground Ambient sensor InputIgnition switch ON
NOTE:
Changes depending to ambient tem-
perature
22
(SB)GroundRefrigerant pressure sen-
sor groundOutputEngine
running Warm-up condition
 Idle speed0 V
23
(GR)GroundRefrigerant pressure sen-
sorOutputEngine
running Warm-up condition
 Both A/C switch and
blower fan motor switch
ON
(Compressor operates)1.0 - 4.0 V
24
(G)
GroundRefrigerant pressure sen-
sor power supplyInputIgnition switch OFF 0 V
Ignition switch ON 5.0 V
25
(GR)Ground Ignition relay power supply OutputIgnition switch OFF 0 V
Ignition switch ON Battery voltage
27
(W)Ground Ignition relay monitor InputIgnition switch OFF or ACC Battery voltage
Ignition switch ON 0 V Te r m i n a l N o .
(Wire color)Description
ConditionVa l u e
(Approx.)
Signal nameInput/
Output +−
JSNIA0014GB

MWI-106
< ECU DIAGNOSIS >
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
28
(SB)GroundPush-button ignition
switchInputPress the push-button ignition switch 0 V
Release the push-button ignition switch Battery voltage
30
(BR)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
32
(V)GroundSteering lock unit condi-
tion-1InputSteering lock is activated 0 V
Steering lock is deactivated Battery voltage
33
(G)GroundSteering lock unit condi-
tion-2InputSteering lock is activated Battery voltage
Steering lock is deactivated 0 V
34
(O)Ground Cooling fan relay-3 control InputCooling fan stopped Battery voltage
Cooling fan at HI operation 0 V
35
(P)GroundCooling fan relay-1 power
supplyInputCooling fan stopped Battery voltage
Cooling fan at LO operation 6.0 V
36
(G)Ground Battery power supply Input Ignition switch OFF Battery voltage
38
(GR)GroundCooling fan relay-1 power
supplyOutputCooling fan not operating 0 V
Cooling fan at LO operation 6.0 V
39
(P)—CAN-LInput/
Output——
40
(L)—CAN-HInput/
Output——
41
(B)Ground Ground — Ignition switch ON 0 V
42
(SB)Ground Cooling fan relay-2 control InputCooling fan stopped Battery voltage
 Cooling fan MID operating
 Cooling fan HI operating0 V
43
(Y)GroundControl device
(Detention switch)InputIgnition
switch ONPress the selector button
(selector lever P)Battery voltage
 Selector lever in any po-
sition other than P
 Release the selector
button (selector lever P)0 V
44
(G)Ground Horn relay control InputThe horn is deactivated Battery voltage
The horn is activated 0 V
45
(O)Ground Horn switch InputThe horn is deactivated Battery voltage
The horn is activated 0 V
46
(BR)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
48
(Y/R)Ground A/C relay power supply OutputEngine
runningA/C switch OFF 0 V
A/C switch ON
(A/C compressor is oper-
ating)Battery voltage Te r m i n a l N o .
(Wire color)Description
ConditionVa l u e
(Approx.)
Signal nameInput/
Output +−

MWI
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
MWI-107
< ECU DIAGNOSIS >
C
D
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F
G
H
I
J
K
L
MB A
O
P
49
(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
74
(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 +−

MWI-108
< 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
80
(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
84
(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

MWI
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
MWI-109
< ECU DIAGNOSIS >
C
D
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F
G
H
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K
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MB A
O
P
88
(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

MWI-114
< 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”

MWI
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
MWI-115
< ECU DIAGNOSIS >
C
D
E
F
G
H
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K
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MB A
O
P
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:0000000003900504
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