Infiniti QX56 (JA60). Manual — part 723
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PCS-14
< FUNCTION DIAGNOSIS >
[IPDM E/R]
DIAGNOSIS SYSTEM (IPDM E/R)
CONSULT - III Function (IPDM E/R)
INFOID:0000000005146507
APPLICATION ITEM
CONSULT-III performs the following functions via CAN communication with IPDM E/R.
SELF DIAGNOSTIC
DATA MONITOR
Monitor item
Any of the following components do not operate
• Front wipers
• Tail lamps
• License plate lamps
• Parking lamps
• Front fog lamps
• Headlamps (Hi, Lo)
Perform auto active test.
Does the applicable system
operate?
YES
BCM signal input system
NO
• Lamp or front wiper motor
malfunction
• Lamp or front wiper motor
ground circuit
• Harness or connector be-
tween IPDM E/R and appli-
cable system
• IPDM E/R (integrated relay
malfunction)
A/C compressor does not operate
Perform auto active test.
Does the A/C compressor op-
erate?
YES
• BCM signal input circuit
• CAN communication signal
between BCM and ECM
• CAN communication signal
between ECM and IPDM E/
R
NO
• Magnetic clutch malfunction
• Harness or connector be-
tween IPDM E/R and mag-
netic clutch
• IPDM E/R (integrated relay
malfunction)
Cooling fan does not operate
Perform auto active test.
Does the cooling fan operate?
YES
• ECM signal input circuit
• CAN communication signal
between ECM and IPDM E/
R
NO
• Cooling fan motor malfunc-
tion
• Harness or connector be-
tween IPDM E/R and cool-
ing fan
• IPDM E/R (integrated relay
malfunction)
Symptom
Inspection contents
Possible cause
Diagnosis mode
Description
Self Diagnostic Result
Displays the diagnosis results judged by IPDM E/R.
Data Monitor
Displays the real-time input/output data from IPDM E/R input/output data.
Active Test
IPDM E/R can provide a drive signal to electronic components to check their operations.
CAN Diag Support Monitor
The results of transmit/receive diagnosis of CAN communication can be read.
Monitor Item
[Unit]
MAIN SIG-
NALS
Description
MOTOR FAN REQ
[1/2/3/4]
×
Displays the status of the cooling fan speed request signal received from ECM via
CAN communication.
A/C COMP REQ
[OFF/ON]
×
Displays the status of the A/C request signal received from AV control unit via
CAN communication.
![](/vehicles/zatt/vend/genn/fry.png)
PCS
DIAGNOSIS SYSTEM (IPDM E/R)
PCS-15
< FUNCTION DIAGNOSIS >
[IPDM E/R]
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ACTIVE TEST
Test item
TAIL&CLR REQ
[OFF/ON]
×
Displays the status of the position light request signal received from BCM via CAN
communication.
HL LO REQ
[OFF/ON]
×
Displays the status of the low beam request signal received from BCM via CAN
communication.
HL HI REQ
[OFF/ON]
×
Displays the status of the high beam request signal received from BCM via CAN
communication.
FR FOG REQ
[OFF/ON]
×
Displays the status of the front fog lamp request signal received from BCM via
CAN communication.
FR WIP REQ
[STOP/1LOW/LOW/HI]
×
Displays the status of the front wiper request signal received from BCM via CAN
communication.
WIP AUTO STOP
[STOP P/ACT P]
×
Displays the status of the front wiper auto stop signal judged by IPDM E/R.
WIP PROT
[OFF/Block]
×
Displays the status of the front wiper fail-safe operation judged by IPDM E/R.
ST RLY REQ
[OFF/ON]
Displays the status of the starter request signal received from ECM via CAN com-
munication.
IGN RLY
[OFF/ON]
×
Displays the status of the ignition relay judged by IPDM E/R.
RR DEF REQ
[OFF/ON]
×
Displays the status of the rear defogger request signal received from AV control
unit via CAN communication.
OIL P SW
[OPEN/CLOSE]
Displays the status of the oil pressure switch judged by IPDM E/R.
DTRL REQ
[OFF]
Displays the status of the daytime light request signal received from BCM via CAN
communication.
HOOD SW
[OPEN/CLOSE]
Displays the status of the hood switch judged by IPDM E/R.
THFT HRN REQ
[OFF/ON]
Displays the status of the theft warning horn request signal received from BCM
via CAN communication.
HORN CHIRP
[OFF/ON]
Displays the status of the horn reminder signal received from BCM via CAN com-
munication.
Monitor Item
[Unit]
MAIN SIG-
NALS
Description
Test item
Operation
Description
REAR DEFOGGER
OFF
OFF
ON
Operates rear window defogger relay.
FRONT WIPER
OFF
OFF
LO
Operates the front wiper relay.
HI
Operates the front wiper relay and front wiper high relay.
MOTOR FAN
1
OFF
2
OFF
3
Operates the cooling fan relay.
4
Operates the cooling fan relay.
![](/vehicles/zatt/vend/genn/eele.png)
PCS-16
< FUNCTION DIAGNOSIS >
[IPDM E/R]
DIAGNOSIS SYSTEM (IPDM E/R)
EXTERNAL LAMPS
OFF
OFF
TAIL
Operates the tail lamp relay.
LO
Operates the headlamp low relay.
HI
Operates the headlamp low relay and the headlamp high LH/RH relays at 1 sec-
ond intervals.
FOG
Operates the front fog lamp relay
HORN
ON
Operates horn relay for 20 ms.
Test item
Operation
Description
![](/vehicles/zatt/vend/genn/caver.png)
PCS
U1000 CAN COMM CIRCUIT
PCS-17
< COMPONENT DIAGNOSIS >
[IPDM E/R]
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COMPONENT DIAGNOSIS
U1000 CAN COMM CIRCUIT
Description
INFOID:0000000005146508
.
DTC Logic
INFOID:0000000005146509
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
Diagnosis Procedure
INFOID:0000000005146510
1.
PERFORM SELF DIAGNOSTIC
1. Turn ignition switch ON and wait for 2 seconds or more.
2. Check “SELF-DIAG RESULTS” of IPDM E/R.
Is “CAN COMM CIRCUIT” displayed?
YES
>> Refer to
LAN-5, "CAN Communication Control Circuit"
.
NO
>> Refer to
GI-38, "Intermittent Incident"
.
DTC
CONSULT-III display
description
DTC Detection Condition
Possible cause
U1000
CAN COMM CIRCUIT
When IPDM E/R cannot communicate CAN
communication signal continuously for 2
seconds or more
In CAN communication system, any item (or items)
of the following listed below is malfunctioning.
• Receiving (TCM)
• Receiving (ECM)
• Receiving (BCM)
• Receiving (Combination meter)
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