Nissan Maxima. Manual — part 572
EXL-30
< SYSTEM DESCRIPTION >
[XENON TYPE]
DIAGNOSIS SYSTEM (IPDM E/R)
DIAGNOSIS SYSTEM (IPDM E/R)
Diagnosis Description
INFOID:0000000010069553
AUTO ACTIVE TEST
Description
In auto active test mode, the IPDM E/R sends a drive signal to the following systems to check their operation.
• Oil pressure warning lamp
• Front wiper (LO, HI)
• Parking lamps
• Side marker lamps
• License plate lamps
• Tail lamps
• Front fog lamps (if equipped)
• Headlamps (LO, HI)
• A/C compressor (magnet clutch)
• Cooling fans
Operation Procedure
1. Close the hood and lift the wiper arms from the windshield. (Prevent windshield damage due to wiper
operation)
NOTE:
When auto active test is performed with hood opened, sprinkle water on windshield beforehand.
2. Turn ignition switch OFF.
3. Turn the ignition switch ON, and within 20 seconds, press the front door switch LH 10 times. Then turn the
ignition switch OFF.
CAUTION:
Close front door RH.
4. Turn the ignition switch ON within 10 seconds. After that the horn sounds once and the auto active test
starts.
5. The oil pressure warning lamp starts blinking when the auto active test starts.
6. After a series of the following operations is repeated 3 times, auto active test is completed.
NOTE:
When auto active test mode has to be cancelled halfway through test, turn ignition switch OFF.
CAUTION:
• If auto active test mode cannot be actuated, check door switch system. Refer to
.
• Do not start the engine.
Inspection in Auto Active Test Mode
When auto active test mode is actuated, the following 6 steps are repeated 3 times.
*: Outputs duty ratio of 50% for 5 seconds
→ duty ratio of 100% for 5 seconds on the cooling fan control module.
Operation
sequence
Inspection Location
Operation
1
Oil pressure warning lamp
Blinks continuously during operation of auto active test
2
Front wiper
LO for 5 seconds
→ HI for 5 seconds
3
• Parking lamps
• Side marker lamps
• License plate lamps
• Tail lamps
• Front fog lamps (if equipped)
10 seconds
4
Headlamps
LO
⇔ HI 5 times
5
A/C compressor (magnet clutch)
ON
⇔ OFF 5 times
6
*
Cooling fans
MID for 5 seconds
→ HI for 5 seconds
DIAGNOSIS SYSTEM (IPDM E/R)
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< 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
AWMIA1321GB
Symptom
Inspection contents
Possible cause
Any of the following components do not operate
• Parking lamps
• Side marker lamps
• License plate lamps
• Tail lamps
• Front fog lamps (if equipped)
• Headlamp (HI, LO)
• Front wiper
Perform auto active test.
Does the applicable system
operate?
YES
BCM signal input circuit
NO
• Lamp or motor
• Lamp or motor ground cir-
cuit
• Harness or connector be-
tween IPDM E/R and appli-
cable system
• IPDM E/R
A/C compressor does not operate
Perform auto active test.
Does the magnet clutch oper-
ate?
YES
• Combination meter signal
input circuit
• CAN communication signal
between combination meter
and ECM
• CAN communication signal
between ECM and IPDM E/
R
NO
• Magnet clutch
• Harness or connector be-
tween IPDM E/R and mag-
net clutch
• IPDM E/R
EXL-32
< SYSTEM DESCRIPTION >
[XENON TYPE]
DIAGNOSIS SYSTEM (IPDM E/R)
CONSULT Function (IPDM E/R)
INFOID:0000000010069554
APPLICATION ITEM
CONSULT performs the following functions via CAN communication with IPDM E/R.
ECU IDENTIFICATION
The IPDM E/R part number is displayed.
SELF DIAGNOSTIC RESULT
DATA MONITOR
Oil pressure warning lamp does not operate
Perform auto active test.
Does the oil pressure warning
lamp blink?
YES
• Harness or connector be-
tween IPDM E/R and oil
pressure switch
• Oil pressure switch
• IPDM E/R
NO
• CAN communication signal
between IPDM E/R and
BCM
• CAN communication signal
between BCM and combi-
nation meter
• Combination meter
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
• Harness or connector be-
tween cooling fan and cool-
ing fan relays
• Cooling fan relays
• Harness or connector be-
tween IPDM E/R and cool-
ing fan relays
• IPDM E/R
Symptom
Inspection contents
Possible cause
Direct Diagnostic Mode
Description
ECU Identification
The IPDM E/R part number is displayed.
Self Diagnostic Result
The IPDM E/R self diagnostic results are displayed.
Data Monitor
The IPDM E/R input/output data is displayed in real time.
Active Test
The IPDM E/R activates outputs to test components.
CAN Diag Support Mntr
The result of transmit/receive diagnosis of CAN communication is diplayed.
Monitor Item [Unit]
Main
Signals
Description
MOTOR FAN REQ [1/2/3/4]
×
Indicates cooling fan speed signal received from ECM on CAN communication
line
AC COMP REQ [On/Off]
×
Indicates A/C compressor request signal received from ECM on CAN commu-
nication line
TAIL&CLR REQ [On/Off]
×
Indicates position light request signal received from BCM on CAN communica-
tion line
HL LO REQ [On/Off]
×
Indicates low beam request signal received from BCM on CAN communication
line
DIAGNOSIS SYSTEM (IPDM E/R)
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ACTIVE TEST
CAN DIAG SUPPORT MNTR
LAN-12, "CAN Diagnostic Support Monitor"
.
HL HI REQ [On/Off]
×
Indicates high beam request signal received from BCM on CAN communication
line
FR FOG REQ [On/Off]
×
Indicates front fog light request signal received from BCM on CAN communica-
tion line
FR WIP REQ [Stop/1LOW/Low/Hi]
×
Indicates front wiper request signal received from BCM on CAN communication
line
WIP AUTO STOP [STOP P/ACT P]
×
Indicates condition of front wiper auto stop signal
WIP PROT [Off/BLOCK]
×
Indicates condition of front wiper fail-safe operation
IGN RLY1 -REQ [On/Off]
Indicates ignition switch ON signal received from BCM on CAN communication
line
IGN RLY [On/Off]
×
Indicates condition of ignition relay-1
PUSH SW [On/Off]
Indicates condition of push-button ignition switch
INTER/NP SW [On/Off]
Indicates condition of CVT shift position
ST RLY CONT [On/Off]
Indicates starter relay status signal received from BCM on CAN communication
line
IHBT RLY -REQ [On/Off]
Indicates starter control relay signal received from BCM on CAN communication
line
ST/INHI RLY [Off/ ST /INHI]
Indicates condition of starter relay and starter control relay
DETENT SW [On/Off]
Indicates condition of CVT shift selector (park position switch)
DTRL REQ [Off]
Indicates daytime light request signal received from BCM on CAN communica-
tion line
OIL P SW [Open/Close]
Indicates condition of oil pressure switch
THFT HRN REQ [On/Off]
Indicates theft warning horn request signal received from BCM on CAN commu-
nication line
HORN CHIRP [On/Off]
Indicates horn reminder signal received from BCM on CAN communication line
Monitor Item [Unit]
Main
Signals
Description
Test item
Description
HORN
This test is able to check horn operation [On].
FRONT WIPER
This test is able to check wiper motor operation [Hi/Lo/Off].
MOTOR FAN
This test is able to check cooling fan operation [4/3/2/1].
EXTERNAL LAMPS
This test is able to check external lamp operation [Fog/Hi/Lo/Tail/Off].
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