engine cooling system INFINITI FX35 2008 Repair Manual

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PG-21
< SERVICE INFORMATION >
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NOTE:
Turns ON-OFF the solenoid to switch Hi/Lo. In this case, the bulb does not illuminate.
Concept of Auto Active Test
 IPDM E/R actuates auto active test mode when it re ceives door switch signal from BCM via CAN communi-
cation line. Therefore, when auto active test mode is activated successfully, CAN communication between
IPDM E/R and BCM is normal.
 If any of systems controlled by IPDM E/R cannot be operated, possible cause can be easily diagnosed using
auto active test.
Diagnosis chart in auto active test mode
Symptom Inspection contents Possible cause
Any of front wipers, tail
and parking lamps, front
fog lamps, and head
lamps (Hi, Lo) do not op-
erate. Perform auto active
test. Does system in
question operate?YES  BCM signal input system malfunction
NO  Lamp/wiper motor malfunction
 Lamp/wiper motor ground circuit malfunction
 Harness/connector malfunction between IPDM E/R and system in question
 IPDM E/R (integrated relay) malfunction
Rear window defogger
does not operate. Perform auto active
test. Does rear win-
dow defogger oper-
ate?YES  BCM signal input circuit malfunction
NO  Rear window defogger relay malfunction
 Harness/connector malfunction between IPDM E/R and rear window de-
fogger relay.
 Open circuit of rear window defogger
IPDM E/R malfunction
A/C compressor does
not operate. Perform auto active
test. Does magnetic
clutch operate?YES
 BCM signal input circuit malfunction
 CAN communication signal between BCM and ECM.
 CAN communication signal between ECM and IPDM E/R
NO  Magnetic clutch malfunction
 Harness/connector malfunction between IPDM E/R and magnetic clutch
 IPDM E/R (integrated relay) malfunction
Cooling fan does not op-
erate. Perform auto active
test. Does cooling
fan operate?YES
 ECM signal input circuit
 CAN communication signal between ECM and IPDM E/R
NO  Cooling fan motor malfunction
 Harness/connector malfunction between IPDM E/R and cooling fan motor
 IPDM E/R (integrated relay) malfunction
Oil pressure warning
lamp does not operate. Perform auto active
test. Does oil pres-
sure warning lamp
blink?YES
 Harness/connector malfunction between IPDM E/R and oil pressure switch
 Oil pressure switch malfunction
IPDM E/R malfunction
NO  CAN communication signal between BCM and unified meter and A/C amp.
 Combination meter
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HARNESSPG-61
< SERVICE INFORMATION >
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Code Section Wiring Diagram Name
A/C ATC Air Conditioner
AF1B1 EC Air Fuel Ratio Sensor 1 Bank 1
AF1B2 EC Air Fuel Ratio Sensor 1 Bank 2
AF1HB1 EC Air Fuel Ratio Sensor 1 Heater Bank 1
AF1HB2 EC Air Fuel Ratio Sensor 1 Heater Bank 2
APPS1 EC Accelerator Pedal Position Sensor
APPS2 EC Accelerator Pedal Position Sensor
APPS3 EC Accelerator Pedal Position Sensor
ASC/BS EC Automatic Speed Control Device (ASCD) Brake Switch
ASC/SW EC Automatic Speed Control Device (ASCD) Steering Switch
ASCBOF EC Automatic Speed Control Device (ASCD) Brake Switch
ASCIND EC Automatic Speed Contro l Device (ASCD) Indicator
AT/IND DI A/T Indicator Lamp
AUDIO AV Audio
AUT/DP SE Automatic Drive Positioner
AUTO/L LT Automatic Light System
AWD TF AWD Control System
B/CLOS BL Back Door Closure System
BACK/L LT Back-Up Lamp
BRK/SW EC Brake Switch
CAN AT CAN Communication Line
CAN EC CAN Communication Line
CAN LAN CAN System
CHARGE SC Charging System
CHIME DI Warning Chime
CLOCK DI Clock
COMBSW LT Combination Switch
COMM AV Audio Visual Communication Line
COMPAS DI Compass
COOL/F EC Cooling Fan Control
D/LOCK BL Power Door Lock
DEF GW Rear Window Defogger
DTRL LT Headlamp - With Daytime Light System
ECM/PW EC ECM Power Supply for Back-Up
ECTS EC Engine Coolant Temperature Sensor
ETC1 EC Electric Throttle Control Function
ETC2 EC Electric Throttle Control Motor Relay
ETC3 EC Electric Throttle Control Motor
F/FOG LT Front Fog Lamp
F/PUMP EC Fuel Pump
FTS AT A/T Fluid Temperature Sensor Circuit
FTTS EC Fuel Tank Temperature Sensor
FUELB1 EC Fuel Injection System Function (Bank 1)
FUELB2 EC Fuel Injection System Function (Bank 2)
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