Nissan Titan A60. Manual - part 494
DIAGNOSIS SYSTEM (IPDM E/R)
EXL-31
< SYSTEM DESCRIPTION >
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Concept of auto active test
• IPDM E/R starts the auto active test with the door switch signals transmitted by BCM via CAN communica-
tion. Therefore, the CAN communication line between IPDM E/R and BCM is considered normal if the auto
active test starts successfully.
• The auto active test facilitates troubleshooting if any systems controlled by IPDM E/R cannot be operated.
Diagnosis chart in auto active test mode
3
Tail, license, parking lamps and front fog lamps (if
equipped)
10 seconds
4
Headlamps
LO for 10 seconds
→ HI on-off for 5 seconds
5
A/C compressor (magnetic clutch)
ON
⇔ OFF 5 times
Operation
sequence
Inspection Location
Operation
*: If equipped
AWMIA1108GB
Symptom
Inspection contents
Possible cause
Oil pressure low/coolant temperature high warning
indicator does not operate
Perform auto active test.
Does the oil pressure low/
coolant temperature high
warning indicator operate?
YES
• IPDM E/R signal input circuit
• ECM signal input circuit
• CAN communication signal be-
tween ECM and combination meter
NO
CAN communication signal between
IPDM E/R, BCM and combination
meter
Oil pressure gauge does not operate
Perform auto active test.
Does the oil pressure gauge
operate?
YES
IPDM E/R signal input circuit
NO
CAN communication signal between
IPDM E/R, BCM and combination
meter
Rear window defogger does not operate
Perform auto active test.
Does the rear window defog-
ger operate?
YES
BCM signal input circuit
NO
CAN communication signal between
BCM and IPDM E/R