Nissan Maxima. Manual — part 1222
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< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (BCM)
WIPER : CONSULT Function (BCM - WIPER)
INFOID:0000000010053911
DATA MONITOR
ACTIVE TEST
WORK SUPPORT
* : Initial setting
Monitor Item [Unit]
Description
PUSH SW [On/Off]
Indicates condition of push button ignition switch
VEH SPEED 1 [km/h]
Indicates vehicle speed signal received from ABS on CAN communication line
FR WIPER HI [On/Off]
Indicates condition of wiper operation of combination switch
FR WIPER LOW [On/Off]
FR WASHER SW [On/Off]
FR WIPER INT [On/Off]
FR WIPER STOP [On/Off]
Indicates front wiper auto stop signal received from IPDM E/R on CAN communication line
INT VOLUME [1
− 7]
Indicates condition of intermittent wiper operation of combination switch
Test Item
Description
FR WIPER
This test is able to check front wiper operation [INT/Lo/Hi/Off].
Support Item
Setting
Description
WIPER SPEED SETTING
On
Front wiper intermittent time linked with vehicle speed and wiper dial position
Off*
Front wiper intermittent time linked with wiper dial position
DIAGNOSIS SYSTEM (IPDM E/R)
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< SYSTEM DESCRIPTION >
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DIAGNOSIS SYSTEM (IPDM E/R)
Diagnosis Description
INFOID:0000000010053912
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
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< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (IPDM E/R)
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
DIAGNOSIS SYSTEM (IPDM E/R)
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< SYSTEM DESCRIPTION >
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CONSULT Function (IPDM E/R)
INFOID:0000000010053913
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
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