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< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (BCM)
DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT Function (BCM - COMMON ITEM)INFOID:0000000009944151
CAUTION:
After disconnecting the CONSULT vehicle interface (VI) from the data link connector, the ignition must
be cycled OFF → ON (for at least 5 seconds) → OFF. If this step is not performed, the BCM may not go
to ”sleep mode”, potentially causing a di scharged battery and a no-start condition.
APPLICATION ITEM
CONSULT performs the following functions via CAN communication with BCM.
SYSTEM APPLICATION
BCM can perform the following functions.
Direct Diagnostic Mode Description
Ecu Identification The BCM part number is displayed.
Self Diagnostic Result The BCM self diagnostic results are displayed.
Data Monitor The BCM input/output data is displayed in real time.
Active Test The BCM activates outputs to test components.
Work support The settings for BCM functions can be changed.
Configuration • The vehicle specification can be read and saved.
• The vehicle specification can be written when replacing BCM.
CAN Diag Support Mntr The result of transmit/receive diagnosis of CAN communication is displayed.
System Sub System Direct Diagnostic Mode
Ecu Identification
Self Diagnostic Result
Data Monitor
Active Test
Work support
Configuration
CAN Diag Su pport Mntr
Door lock DOOR LOCK ××××
Rear window defogger REAR DEFOGGER ×××
Warning chime BUZZER ××
Interior room lamp timer INT LAMP ×××
Remote keyless entry system MULTI REMOTE ENT ×××
Exterior lamp HEADLAMP ×××
Wiper and washer WIPER ×××
Turn signal and hazard warning lamps FLASHER ××
Air conditioner AIR CONDITIONER ×
Intelligent Key system INTELLIGENT KEY ××××
Combination switch COMB SW ×
BCM BCM × × ×××
Immobilizer IMMU ×××
Interior room lamp battery saver BATTERY SAVER ××
Trunk open TRUNK ×
Vehicle security system THEFT ALM ×××
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< SYSTEM DESCRIPTION >
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WIPER
WIPER : CONSULT Func tion (BCM - WIPER)INFOID:0000000009944152
CAUTION:
After disconnecting the CONSULT vehicle interface (VI) from the data link connector, the ignition must
be cycled OFF → ON (for at least 5 seconds) → OFF. If this step is not performed, the BCM may not go
to ”sleep mode”, potentiall y causing a discharged battery and a no-start condition.
DATA MONITOR
ACTIVE TEST
WORK SUPPORT
* : Initial setting RAP system RETAINED PWR
×
Signal buffer system SIGNAL BUFFER ×
TPMS AIR PRESSURE MONITOR ××××
System Sub System
Direct Diagnostic Mode
Ecu Identification
Self Diagnostic Result
Data Monitor
Active Test
Work support
Configuration
CAN Diag Support Mntr
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 [Hi/Lo/INT/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.
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< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (IPDM E/R)
DIAGNOSIS SYSTEM (IPDM E/R)
Diagnosis DescriptionINFOID:0000000009944155
AUTO ACTIVE TEST
Description
In auto active test mode, the IPDM E/R sends a drive signal to the follo wing systems to check their operation.
• Front wiper (LO, HI)
• Front fog lamps
• Parking lamps
• Side marker lamps
• Tail lamps
• License plate lamps
• Daytime running lamps
• Headlamps (LO, HI)
• A/C compressor
• Cooling fans (LO, HI)
Operation Procedure
CAUTION:
Do not start the engine.
NOTE:
When auto active test is performed with hood opened, sprinkle water on windshield before hand.
NOTE:
• If auto active test mode cannot be actuat ed, check door switch system. Refer to DLK-100,
"Component Function Check".
• When auto active test mode has to be cancelled halfway through test, turn ignition switch OFF.
1. Close the hood and lift the wiper arms from the windshield. (Prevent windshield damage due to wiper
operation)
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.
4. Turn the ignition switch ON within 10 seconds. Af ter that the horn sounds once, and the auto active test
starts.
5. After a series of the following operations is repeated 3 times, auto active test is completed.
Inspection in Auto Active Test Mode
When auto active test mode is actuated, the following operation sequence is 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 se-
quence Inspection Location Operation
1 Front wiper LO for 3 seconds → HI for 3 seconds
2 •Front fog lamps
• Parking lamps
• Side marker lamps
•Tail lamps
• License plate lamps 10 seconds
3 Daytime running lamps 10 seconds
4 Headlamps LO ⇔ HI 5 times
5 A/C compressor ON ⇔ OFF 5 times
6
*Cooling fans LO for 5 seconds → HI for 5 seconds
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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
CONSULT Function (IPDM E/R)INFOID:0000000009944156
CAUTION:
After disconnecting the CONSULT vehicle interface (VI) from the data link connector, the ignition must
be cycled OFF → ON (for at least 5 seconds) → OFF. If this step is not performed, the BCM may not go
to ”sleep mode”, potentiall y causing a discharged battery and a no-start condition.
AWMIA1280GB
Symptom Inspection contents Possible cause
Any of the following components do not operate
• Front fog lamps
•Parking lamps
• Side marker lamps
• License plate lamps
•Tail lamps
• Daytime running lamps
• 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
Cooling fans do not operate Perform auto active test.
Do the cooling fans operate? YES
• ECM signal input circuit
• CAN communication signal between ECM and IPDM E/
R
NO • Cooling fans
• Harness or connectors be-
tween cooling fans and
cooling fan control module
• Cooling fan control module
• Harness or connectors be- tween cooling fan relay and
cooling fan control module
• Cooling fan relay
• Harness or connectors be- tween IPDM E/R and cool-
ing fan relay
• IPDM E/R
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< SYMPTOM DIAGNOSIS >
WIPER AND WASHER SYSTEM SYMPTOMS
Front wiper does not
stop HI only
• Combination switch (wiper and washer switch)
•BCM Combination switch (wiper
and washer switch)
Refer to BCS-8, "COMBINA-
TION SWITCH READING
SYSTEM : System Descrip-
tion".
Front wiper request signal
•BCM
•IPDM E/R IPDM E/R
Data monitor “FR WIP REQ”
IPDM E/R —
LO only • Combination switch (wiper and washer switch)
•BCM Combination switch (wiper
and washer switch)
Refer to BCS-8, "COMBINA-
TION SWITCH READING
SYSTEM : System Descrip-
tion".
Front wiper request signal
•BCM
•IPDM E/R IPDM E/R
Data monitor “FR WIP REQ”
IPDM E/R —
INT only • Combination switch (wiper and washer switch)
•BCM Combination switch (wiper
and washer switch)
refer to BCS-8, "COMBINA-
TION SWITCH READING
SYSTEM : System Descrip-
tion".
Front wiper request signal
•BCM
•IPDM E/R IPDM E/R
Data monitor “FR WIP REQ”
Front wiper does not
operate normally Intermittent adjustment
cannot be performed • Combination switch (wiper and washer switch)
• Harness between combination switch (wiper and washer switch) and BCM
•BCM Combination switch (wiper
and washer switch)
Refer to BCS-8, "COMBINA-
TION SWITCH READING
SYSTEM : System Diagram".
BCM —
Intermittent control
linked with vehicle
speed cannot be per-
formed Check the vehicle speed detection wiper setting.
Refer to BCS-20, "WIPER : CONSULT Function (BCM - WIPER)"
.
Wiper is not linked to
the washer operation • Combination switch (wiper and washer switch)
• Harness between combination switch (wiper and washer switch) and BCM
•BCM Combination switch (wiper
and washer switch)
Refer to BCS-8, "COMBINA-
TION SWITCH READING
SYSTEM : System Diagram".
BCM —
Does not return to stop
position (Repeatedly
operates for 10 sec-
onds and then stops for
20 seconds. After that,
it stops the operation. •IPDM E/R
• Harness between IPDM E/R and front wiper motor
• Front wiper motor Front wiper auto stop signal
circuit
Refer to WW-38, "Compo-
nent Function Check".
Symptom Probable malfunction location Inspection item
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< SYMPTOM DIAGNOSIS >
NORMAL OPERATING CONDITION
NORMAL OPERATING CONDITION
DescriptionINFOID:0000000009464627
FRONT WIPER MOTOR PROTECTION FUNCTION
• IPDM E/R may stop the front wiper to protect the front wiper motor if any obstruction (operation resistance)
such as a large amount of snow is detected during the front wiper operation.
• At that time turn OFF the front wiper and remove t he foreign object. Then wait for approximately 20 seconds
or more and reactivate the front wiper. The wiper will operate normally.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM