Nissan Pathfinder (2008 year). Manual — part 506
PCS-16
< COMPONENT DIAGNOSIS >
[IPDM E/R]
POWER SUPPLY AND GROUND CIRCUIT
POWER SUPPLY AND GROUND CIRCUIT
Diagnosis Procedure
INFOID:0000000001712747
1.
CHECK FUSES AND FUSIBLE LINK
Check that the following IPDM E/R fuses or fusible link are not blown.
Is the fuse blown?
YES
>> Replace the blown fuse or fusible link after repairing the affected circuit.
NO
>> GO TO 2
2.
CHECK BATTERY POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect IPDM E/R.
3.
Check voltage between IPDM E/R harness connectors and
ground.
Is the measurement value normal?
YES
>> GO TO 3
NO
>> Repair or replace harness.
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Check continuity between IPDM E/R harness connectors and
ground.
Does continuity exist?
YES
>> Inspection End.
NO
>> Repair or replace harness.
Terminal No.
Signal name
Fuses and fusible link No.
1
Battery
A, D
2
Battery
C
Terminals
Ignition switch position
(+)
(
−
)
OFF
ON
START
Connector
Terminal
E118 (A)
1
Ground
Battery
voltage
Battery
voltage
Battery
voltage
2
Battery
voltage
Battery
voltage
Battery
voltage
SKIA1987E
IPDM E/R
Ground
Continuity
Connector
Terminal
E122 (A)
38
Yes
E124 (B)
59
AWMIA0024ZZ
PCS
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PCS-17
< ECU DIAGNOSIS >
[IPDM E/R]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
ECU DIAGNOSIS
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE
ROOM)
Reference Value
INFOID:0000000001712748
VALUES ON THE DIAGNOSIS TOOL
Monitor Item
Condition
Value/Status
MOTOR FAN REQ
Engine idle speed
Changes depending on engine
coolant temperature, air conditioner
operation status, vehicle speed,
etc.
0 - 100 %
A/C COMP REQ
A/C switch OFF
OFF
A/C switch ON
ON
TAIL&CLR REQ
Lighting switch OFF
OFF
Lighting switch 1ST, 2ND, HI or AUTO (Light is illuminated)
ON
HL LO REQ
Lighting switch OFF
OFF
Lighting switch 2ND HI or AUTO (Light is illuminated)
ON
HL HI REQ
Lighting switch OFF
OFF
Lighting switch HI
ON
FR FOG REQ
Lighting switch 2ND or AUTO (Light
is illuminated)
Front fog lamp switch OFF
OFF
• Front fog lamp switch ON
• Daytime light activated (Canada
only)
ON
H L WASHER REQ
NOTE:
This item is displayed, but cannot be monitored.
OFF
FR WIP REQ
Ignition switch ON
Front wiper switch OFF
STOP
Front wiper switch INT
1LOW
Front wiper switch LO
LOW
Front wiper switch HI
HI
WIP AUTO STOP
Ignition switch ON
Front wiper stop position
STOP P
Any position other than front wiper
stop position
ACT P
WIP PROT
Ignition switch ON
Front wiper operates normally
OFF
Front wiper stops at fail-safe opera-
tion
BLOCK
ST RLY REQ
Ignition switch OFF or ACC
OFF
Ignition switch START
ON
IGN RLY
Ignition switch OFF or ACC
OFF
Ignition switch ON
ON
RR DEF REQ
Rear defogger switch OFF
OFF
Rear defogger switch ON
ON
OIL P SW
Ignition switch OFF, ACC or engine running
OPEN
Ignition switch ON
CLOSE
DTRL REQ
NOTE:
This item is displayed, but cannot be monitored.
OFF
HOOD SW
NOTE:
This item is displayed, but cannot be monitored.
OFF
PCS-18
< ECU DIAGNOSIS >
[IPDM E/R]
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
THFT HRN REQ
Not operated
OFF
• Panic alarm is activated
• Horn is activated with VEHICLE SECURITY (THEFT WARNING) SYS-
TEM
ON
HORN CHIRP
Not operated
OFF
Door locking with keyfob or Intelligent Key (if equipped) (horn chirp mode)
ON
Monitor Item
Condition
Value/Status
PCS
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PCS-19
< ECU DIAGNOSIS >
[IPDM E/R]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
Terminal Layout
INFOID:0000000001712749
TERMINAL LAYOUT
Physical Values
INFOID:0000000001712750
PHYSICAL VALUES
WKIA5852E
PCS-20
< ECU DIAGNOSIS >
[IPDM E/R]
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Terminal
Wire
color
Signal name
Signal
input/
output
Measuring condition
Reference value
(Approx.)
Igni-
tion
switch
Operation or condition
1
W
Battery power supply
Input
OFF
—
Battery voltage
2
R
Battery power supply
Input
OFF
—
Battery voltage
3
G
ECM relay
Output
—
Ignition switch ON or START
Battery voltage
Ignition switch OFF or ACC
0V
4
P
ECM relay
Output
—
Ignition switch ON or START
Battery voltage
Ignition switch OFF or ACC
0V
6
V
Throttle control motor
relay
Output
—
Ignition switch ON or START
Battery voltage
Ignition switch OFF or ACC
0V
7
BR
ECM relay control
Input
—
Ignition switch ON or START
0V
Ignition switch OFF or ACC
Battery voltage
8
W/R
Fuse 54
Output
—
Ignition switch ON or START
Battery voltage
Ignition switch OFF or ACC
0V
10
R/B
Fuse 45
Output
ON
Daytime light system active
0V
Daytime light system inactive
Battery voltage
11
Y
A/C compressor
Output
ON or
START
A/C switch ON or defrost A/C
switch
Battery voltage
A/C switch OFF or defrost A/C
switch
0V
12
W/G
Ignition switch sup-
plied power
Input
—
OFF or ACC
0V
ON or START
Battery voltage
13
R
Fuel pump relay
Output
—
Ignition switch ON or START
Battery voltage
Ignition switch OFF or ACC
0V
14
W/G
Fuse 49
Output
—
Ignition switch ON or START
Battery voltage
Ignition switch OFF or ACC
0V
15
W/R
Fuse 50 (VDC)
Output
—
Ignition switch ON or START
Battery voltage
Ignition switch OFF or ACC
0V
15
W/R
Fuse 50 (ABS)
Output
—
Ignition switch ON or START
Battery voltage
Ignition switch OFF or ACC
0V
16
W/G
Fuse 51
Output
—
Ignition switch ON or START
Battery voltage
Ignition switch OFF or ACC
0V
17
W/G
Fuse 55
Output
—
Ignition switch ON or START
Battery voltage
Ignition switch OFF or ACC
0V
19
W
Starter motor
Output
START
—
Battery voltage
20
BR
Cooling fan motor
(low)
Output
ON or
START
—
Battery voltage
21
GR
Ignition switch sup-
plied power
Input
—
OFF or ACC
0V
START
Battery voltage
22
G
Battery power supply
Output
OFF
—
Battery voltage
23
LG
Door mirror defogger
output signal
Output
—
When rear defogger switch is
ON
Battery voltage
When raker defogger switch is
OFF
0V
PCS
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PCS-21
< ECU DIAGNOSIS >
[IPDM E/R]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
24
P
Cooling fan motor
(high)
Output
—
Conditions correct for cooling
fan operation
Battery voltage
Conditions not correct for
cooling fan operation
0V
27
W
Fuse 38
Output
—
Ignition switch ON or START
Battery voltage
Ignition switch OFF or ACC
0V
28
R
LH front parking and
front side marker lamp
Output
OFF
Lighting
switch 1st po-
sition
OFF
0V
ON
Battery voltage
29
G
Trailer tow relay
Output
ON
Lighting
switch 1st po-
sition
OFF
0V
ON
Battery voltage
30
R/B
Fuse 53
Output
—
Ignition switch ON or START
Battery voltage
Ignition switch OFF or ACC
0V
32
GR
Wiper low speed sig-
nal
Output
ON or
START
Wiper switch
OFF
Battery voltage
LO or INT
0V
35
L
Wiper high speed sig-
nal
Output
ON or
START
Wiper switch
OFF, LO, INT
Battery voltage
HI
0V
37
Y
Power generation
command signal
Output
—
Ignition switch ON
6.3 V
40% is set on "Active test,"
"ALTERNATOR DUTY" of
"ENGINE"
3.8 V
40% is set on "Active test,"
"ALTERNATOR DUTY" of
"ENGINE"
1.4 V
38
B
Ground
Input
—
—
0V
39
L
CAN-H
—
ON
—
—
40
P
CAN-L
—
ON
—
—
42
GR
Oil pressure switch
Input
—
Engine running
Battery voltage
Engine stopped
0V
Terminal
Wire
color
Signal name
Signal
input/
output
Measuring condition
Reference value
(Approx.)
Igni-
tion
switch
Operation or condition
JPMIA0001GB
JPMIA0002GB
JPMIA0003GB
PCS-22
< ECU DIAGNOSIS >
[IPDM E/R]
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
43
G
Wiper auto stop signal
Input
ON or
START
Wiper switch
OFF, LO, INT
Battery voltage
44
R
Daytime light relay
control
Input
ON
Daytime light system active
0V
Daytime light system inactive
Battery voltage
45
LG
Horn relay control
Input
ON
When door locks are operated
using keyfob or Intelligent Key
(if equipped) (OFF
→
ON)*
Battery voltage
→
0V
46
V
Fuel pump relay con-
trol
Input
—
Ignition switch ON or START
0V
Ignition switch OFF or ACC
Battery voltage
47
O
Throttle control motor
relay control
Input
—
Ignition switch ON or START
0V
Ignition switch OFF or ACC
Battery voltage
48
R
Starter relay (inhibit
switch)
Input
ON or
START
Selector lever in "P" or "N"
0V
Selector lever any other posi-
tion
Battery voltage
49
GR
Front RH parking and
front side marker lamp
Output
OFF
Lighting
switch 1st po-
sition
OFF
0V
ON
Battery voltage
50
W
Front fog lamp (LH)
Output
ON or
START
Lighting
switch must
be in the 2nd
position
(LOW beam
is ON) and
the front fog
lamp switch
OFF
0V
ON
Battery voltage
51
V
Front fog lamp (RH)
Output
ON or
START
Lighting
switch must
be in the 2nd
position
(LOW beam
is ON) and
the front fog
lamp switch
OFF
0V
ON
Battery voltage
52
P
LH low beam head-
lamp
Output
—
Lighting switch in 2nd position
Battery voltage
54
R
RH low beam head-
lamp
Output
—
Lighting switch in 2nd position
Battery voltage
55
G
LH high beam head-
lamp
Output
—
Lighting switch in 2nd position
and placed in HIGH or PASS
position
Battery voltage
56
L
RH high beam head-
lamp
Output
—
Lighting switch in 2nd position
and placed in HIGH or PASS
position
Battery voltage
57
GR
Parking, license, and
tail lamp
Output
ON
Lighting
switch 1st po-
sition
OFF
0V
ON
Battery voltage
59
B
Ground
Input
—
—
0V
60
GR
Rear window defog-
ger relay
Output
ON or
START
Rear defogger switch ON
Battery voltage
Rear defogger switch OFF
0V
61
R/B
Fuse 32
Output
OFF
—
Battery voltage
Terminal
Wire
color
Signal name
Signal
input/
output
Measuring condition
Reference value
(Approx.)
Igni-
tion
switch
Operation or condition
PCS
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PCS-23
< ECU DIAGNOSIS >
[IPDM E/R]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
*: When horn reminder is ON
Wiring Diagram
INFOID:0000000001712751
ALMWA0075GB
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