Nissan Sentra. Manual — part 673
PCS
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PCS-45
< ECU DIAGNOSIS INFORMATION >
[IPDM E/R (WITHOUT I-KEY)]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
25
(G)
Ground
ECM relay power sup-
ply
Output
Ignition switch OFF
(More than a few seconds after turning igni-
tion switch OFF)
0 – 1 V
• Ignition switch ON
• Ignition switch OFF
(For a few seconds after turning ignition
switch OFF)
6 – 16 V
26
(P)
Ground
ECM relay power sup-
ply
Output
Ignition switch OFF
(More than a few seconds after turning igni-
tion switch OFF)
0 – 1 V
• Ignition switch ON
• Ignition switch OFF
(For a few seconds after turning ignition
switch OFF)
6 – 16 V
27
(L)
Ground
Front combination
lamp LH/RH
Output
Lighting switch OFF
0 – 1 V
Lighting switch 1ST
9 – 16 V
28
(R)
Ground
Rear combination
lamp, license plate
lamp and illuminations
Output
Lighting switch OFF
0 – 1 V
Lighting switch 1ST
9 – 16 V
29
(L)
Ground
Front wiper HI
Output
Ignition
switch
ON
Front wiper switch OFF
0 – 1 V
Front wiper switch HI
9 – 16 V
31
(O)
Ground
ECM relay control
Output
Ignition switch OFF
(More than a few seconds after turning igni-
tion switch OFF)
6 – 16 V
• Ignition switch ON
• Ignition switch OFF
(For a few seconds after turning ignition
switch OFF)
0 – 1 V
32
(Y)
Ground
ECM power supply
Output Ignition switch OFF
6 – 16 V
33
(V)
Ground
Illumination
Output
Lighting switch OFF
0 – 1 V
Lighting switch 1ST
9 – 16 V
35
(W)
Ground
Front wiper LO
Output
Ignition
switch
ON
Front wiper switch OFF
0 – 1 V
Front wiper switch LO
9 – 16 V
37
(SB)
Ground
Cranking request
Output
Ignition switch OFF
0 – 1 V
Ignition
switch
ON
Select lever P or N
Select lever in any position oth-
er than P or N
9 – 16 V
Engine running
39
(BR)
Ground
Front wiper stop posi-
tion
Input
Ignition
switch
ON
Front wiper stop position
0 – 1.5 V
Any position other than front
wiper stop position
9 – 16 V
40
(P)
Ground
CAN-L
Input/
Output
—
—
41
(L)
Ground
CAN-H
Input/
Output
—
—
42
(Y)
Ground
DTRL relay
Output
Lighting switch OFF
0 – 1 V
Lighting switch 1ST
9 – 16 V
Terminal NO.
(Wire color)
Description
Condition
Value
(Approx.)
Signal name
Input/
Output
+
–
PCS-46
< ECU DIAGNOSIS INFORMATION >
[IPDM E/R (WITHOUT I-KEY)]
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
44
(V)
Ground
Starter relay control
Input
Ignition
switch
ON
Select lever P or N
6 – 16 V
Select lever in any position oth-
er than P or N
0 – 1 V
45
(Y)
Ground
Fuel pump relay con-
trol
Output
• Approximately 1 second after turning the
ignition switch ON
• Engine running
0 – 1 V
Approximately 1 second or more after turn-
ing the ignition switch ON
6 – 16 V
47
(G)
Ground
Power generation
command signal
Output
Ignition switch ON
6.3 V
40% is set on “ACTIVE TEST”, “ALTERNA-
TOR DUTY” of “ENGINE”
3.8 V
80% is set on “ACTIVE TEST”, “ALTERNA-
TOR DUTY” of “ENGINE”
1.4 V
48
(L)
Ground
Horn relay control
Output
The horn is deactivated
9 – 16 V
The horn is activated
0 – 1 V
52
(B/Y)
Ground
Ground
—
Ignition switch ON
0 – 1 V
53
(W)
Ground
Front fog lamp (RH)
Output
Lighting
switch
1ST, 2ND
or AUTO
Front fog lamp switch OFF
0 – 1 V
Front fog lamp switch ON
9 – 16 V
54
(V)
Ground
Front fog lamp (LH)
Output
Lighting
switch
1ST, 2ND
or AUTO
Front fog lamp switch OFF
0 – 1 V
Front fog lamp switch ON
9 – 16 V
56
(G)
Ground
Ignition switch
Output
Ignition switch OFF or ACC
0 – 1 V
Ignition switch ON
6 – 16 V
57
(B/Y)
Ground
Ground
—
Ignition switch ON
0 – 1 V
Terminal NO.
(Wire color)
Description
Condition
Value
(Approx.)
Signal name
Input/
Output
+
–
JPMIA0001GB
JPMIA0002GB
JPMIA0003GB
PCS
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PCS-47
< ECU DIAGNOSIS INFORMATION >
[IPDM E/R (WITHOUT I-KEY)]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
Fail-Safe
INFOID:0000000009755838
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
If No CAN Communication Is Available With BCM
IGNITION RELAY MALFUNCTION DETECTION FUNCTION
• IPDM E/R monitors the voltage at the contact circuit of the ignition relay inside and ignition switch status
from BCM via CAN communication.
• IPDM E/R judges the ignition relay error if the voltage differs between the contact circuit and the ignition
switch status from BCM via CAN communication.
• 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.
58
(L)
Ground
Cooling fan relay-3
power supply
Output
Cooling fan OFF
0 – 1 V
Cooling fan LO operated
4 – 8 V
Cooling fan HI operated
9 – 16 V
62
(R)
Ground
Rear window defogger
relay power supply
Output
Ignition
switch
ON
Rear window defogger switch
OFF
0 – 1 V
Rear window defogger switch
ON
9 – 16 V
69
(BR)
Ground
Ignition power supply
No. 2
Output Ignition switch OFF or ACC
0 – 1 V
Ignition switch ON
6 – 16 V
Terminal NO.
(Wire color)
Description
Condition
Value
(Approx.)
Signal name
Input/
Output
+
–
Control part
Fail-safe operation
Cooling fan
• The cooling fan relay turn ON when the ignition switch is turned ON (Cooling fan HI oper-
ation)
• The cooling fan relay turn OFF when the ignition switch is turned OFF
A/C compressor
A/C relay OFF
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 lamp
• License plate lamp
• Illumination
• Tail lamp
• 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 motor
• 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.
• Returns automatically wiper to stop position when ignition switch is turned ON if fail-safe
control is activated while front wiper motor is operated and wiper stop in the other position
than stop position.
Front fog lamp
Front fog lamp relay OFF
Horn
Horn OFF
PCS-48
< ECU DIAGNOSIS INFORMATION >
[IPDM E/R (WITHOUT I-KEY)]
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
FRONT WIPER PROTECTION FUNCTION
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.
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.
DTC Index
INFOID:0000000009755839
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
Voltage judgment
IPDM E/R judgment
Operation
Ignition relay contact
side
Ignition switch status
from BCM
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 minutes
OFF
ON
Ignition relay OFF stuck
Detects DTC “B2099: IGN RELAY OFF”
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
Refer to
No DTC is detected.
further testing
may be required.
—
—
U1000: CAN COMM CIRCUIT
×
B2098: IGN RELAY ON
×
B2099: IGN RELAY OFF
—
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