PG-22
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Revision: 2006 July 2007 FX35/FX45
INSPECTION IN AUTO ACTIVE TEST MODE
When auto active test mode is actuated, the following eight steps are repeated three times.
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 receives door switch signal from BCM via CAN commu-
nication 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
PKIB6583E
Symptom Inspection contents Possible cause
Any of front wipers, tail
and parking lamps, front
fog lamps, and head
lamps (Hi, Lo) do not
operate. 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 ques-
tion
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
defogger 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
operate. 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
