Infiniti G35 (V35) Sedan. Manual — part 991
PCS-18
< COMPONENT DIAGNOSIS >
[IPDM E/R]
POWER SUPPLY AND GROUND CIRCUIT
POWER SUPPLY AND GROUND CIRCUIT
Diagnosis Procedure
INFOID:0000000000964193
1.
CHECK FUSES AND FUSIBLE LINK
Check that the following IPDM E/R fuses or fusible links are not blown.
Is the fuse fusing?
YES
>> Replace the blown fuse or fusible link after repairing the affected circuit if a fuse or fusible link is
blown.
NO
>> GO TO 2.
2.
CHECK POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect IPDM E/R connector.
3.
Check voltage between IPDM E/R harness connector and ground.
Is the measurement value normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK GROUND CIRCUIT
Check continuity between IPDM E/R harness connectors and ground.
Does continuity exist?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
Terminal No.
Signal name
Fuses and fusible link No.
1
Battery power supply
C
—
50
51
Terminals
Voltage
(Approx.)
(+)
(
−
)
IPDM E/R
Connector
Terminal
Ground
E4
1
Battery voltage
2
IPDM E/R
Ground
Continuity
Connector
Terminal
E5
12
Existed
E6
41
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
ECU DIAGNOSIS
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE
ROOM)
Reference Value
INFOID:0000000000964194
VALUES ON THE DIAGNOSIS TOOL
Monitor Item
Condition
Value/Status
RADFAN REQ
Engine idle speed
Changes depending on engine
coolant temperature, air conditioner
operation status, vehicle speed,
etc.
0 - 100 %
AC COMP REQ
Engine running
A/C switch OFF
Off
A/C switch ON
(Compressor is operating)
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 running light activated
(Only for Canada)
On
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
IGN RLY1 -REQ
Ignition switch OFF or ACC
Off
Ignition switch ON
On
IGN RLY
Ignition switch OFF or ACC
Off
Ignition switch ON
On
PUSH SW
Release the push-button ignition switch
Off
Press the push-button ignition switch
On
INTER/NP SW
Ignition switch ON
A/T selector lever in any position
other than P or N (A/T models)
Off
Release clutch pedal (M/T models)
Ignition switch ON
A/T selector lever in P or N position
(A/T models)
On
Depress clutch pedal (M/T models)
PCS-20
< ECU DIAGNOSIS >
[IPDM E/R]
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
ST RLY REQ
Ignition switch ON
Off
At engine cranking
On
ST RLY CONT
Ignition switch ON
Off
At engine cranking
On
IHBT RLY -REQ
Ignition switch ON
Off
At engine cranking
On
ST/INHI RLY
Ignition switch ON
Off
At engine cranking
ST
→
INHI
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 OFF
UNKWN
DETENT SW
Ignition switch ON
• Press the selector button with A/
T selector lever in P position
• A/T selector lever in any position
other than P
Off
Release the A/T selector button with A/T selector lever in P position
NOTE:
The lever is fixed ON for M/T
On
S/L RLY -REQ
None 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-
ed
• Depress the clutch pedal when the steering lock is activated
On
S/L STATE
Steering lock is activated
LOCK
Steering lock is deactivated
UNLK
[DTC B210A] is detected
UNKWN
DTRL REQ
NOTE:
The item is indicated, but not monitored.
Off
OIL P SW
Ignition switch OFF, ACC or engine running
Open
Ignition switch ON
Close
HOOD SW
Close the hood
Off
Open the hood
On
HL WASHER REQ
NOTE:
The item is indicated, but not monitored.
Off
THFT HRN REQ
Not operation
Off
• Panic alarm is activated
• Horn is activated with VEHICLE SECURITY (THEFT WARNING) SYS-
TEM
On
HORN CHIRP
Not operating
Off
Door locking with Intelligent Key (horn chirp mode)
On
CRNRNG LMP REQ
NOTE:
The item is indicated, but not monitored.
Off
Monitor Item
Condition
Value/Status
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
TERMINAL LAYOUT
PHYSICAL VALUES
JSMIA0001ZZ
Terminal No.
(Wire color)
Description
Condition
Value
(Approx.)
Signal name
Input/
Output
+
−
1
(W)
Ground
Battery power supply
Input
Ignition switch OFF
Battery voltage
2
(L)
Ground
Battery power supply
Input
Ignition switch OFF
Battery voltage
4
(V)
Ground
Front wiper LO
Output
Ignition
switch ON
Front wiper switch OFF
0 V
Front wiper switch LO
Battery voltage
5
(L)
Ground
Front wiper HI
Output
Ignition
switch ON
Front wiper switch OFF
0 V
Front wiper switch HI
Battery voltage
7
(R)
Ground
Tail, license plate lamps &
interior lamps
Output
Ignition
switch ON
Lighting switch OFF
0 V
Lighting switch 1ST
Battery voltage
11
(BR)
Ground
Steering lock unit power
supply
Output
Ignition
switch
OFF
A few seconds after open-
ing the driver door
Battery voltage
Ignition
switch
LOCK
Press the push-button ig-
nition switch
Battery voltage
Ignition switch ACC or ON
0 V
12
(B/W)
Ground
Ground
—
Ignition switch ON
0 V
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