2010 NISSAN TIIDA Lt-28

BCM (BODY CONTROL MODULE)BCS-7
< SERVICE INFORMATION >
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• When CAN communication operation is detected, it switches to CAN communication status.
• When a state of the following switches changes , it switches to CAN communication state:
- Ignition switch
- Key switch (without Intelligent Key)
- Key switch and ignition knob switch (with Intelligent Key)
- Hazard switch
- Door lock/unlock switch (with power door locks)
- Front door switch (LH, RH)
- Rear door switch (LH, RH)
- Back door lock assembly (Hatchback)
- Trunk key cylinder switch (Sedan)
- Trunk lamp switch and trunk release solenoid (Sedan)
- Combination switch (passing, lighting switch 1st position, front fog lamp)
- Keyfob (lock/unlock signal) (with power door locks)
- Front door key cylinder switch LH
• When control performed only by BCM is required by switch, it shifts to CAN communication inactive mode.
• Status of combination switch reading function is changed.
SYSTEMS CONTROLLED BY BCM DIRECTLY
• Power door lock system (with power door locks). Refer to BL-23, "System Description" .
• Remote keyless entry system. Refer to BL-58, "
System Description" .
• Power window system (with power windows). Refer to GW-19, "
System Description" . NOTE
• Sunroof system (with sunroof). Refer to RF-11, "System Description". NOTE
• Room lamp timer. Refer to LT-94, "System Description" .
• Rear wiper and washer system (Hatchback). Refer to WW-26, "
System Description" .
NOTE:
Power supply only. No system control.
SYSTEMS CONTROLLED BY BCM AND IPDM E/R
• Panic system. Refer to BL-58, "System Description" .
• Vehicle security (theft warning) system. Refer to BL-219, "
System Description" .
• NVIS(NATS) system. Refer to BL-248, "
System Description" .
• Headlamp, tail lamp and battery saver control systems. Refer to LT-75, "
System Description", LT- 6 , "System
Description" or LT-28, "System Description" .
• Front fog lamp (with front fog lamps). Refer to LT-42, "
System Description" .
• Front wiper and washer system. Refer to WW-5, "
System Description" .
• Rear window defogger system. Refer to GW-51, "
System Description" .
SYSTEMS CONTROLLED BY BCM AND COMBINATION METER
• Warning chime. Refer to DI-43, "System Description" .
• Turn signal and hazard warning lamps. Refer to LT-51, "
System Description" .
SYSTEMS CONTROLLED BY BCM AND INTELLIGENT KEY UNIT (WITH INTELLIGENT KEY)
• Intelligent Key system. Refer to BL-88, "System Description" .
MAJOR COMPONENTS AND CONTROL SYSTEM
System Input Output
Remote keyless entry system (with
power door locks) Remote keyless entry receiver
(keyfob)• All door locking actuators
• Turn signal lamp (LH, RH)
• Combination meter (turn signal lamp)
Intelligent Key system (with Intelligent
Key) Intelligent Key unit• All door locking actuators
• Turn signal lamp (LH, RH)
• Combination meter (turn signal lamp)
Power door lock system (with power
door locks) Front power door lock/unlock
switch (LH, RH)
All door locking actuators
Power supply (IGN /RAP) to power
window (with power windows) Ignition retained power supply Power supply to power window and sunroof system
Power supply (BAT) to power window
(with power windows) Battery power supply
Power supply to power window and sunroof system
Revision: January 20102010 Versa

LT-28
< SERVICE INFORMATION >
HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -
HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -
Component Parts and Harness Connector LocationINFOID:0000000005394896
System DescriptionINFOID:0000000005394897
Headlamp operation is controlled by the BCM (body c ontrol module) based on inputs from the combination
switch (lighting switch). When the lighting switch is pl aced in the 2ND position, the BCM receives an input sig-
nal requesting the headlamps (and tail lamps) illuminate. The request is then communicated to the IPDM E/R
(intelligent power distribution module engine room) vi a the CAN communication lines. The CPU (central pro-
cessing unit) located in the IPDM E/R controls ground for the headlamp high and headlamp low relay coils.
These relays direct power to the respective headlamps , which then illuminate. When the headlamp switch is
OFF or in the 1ST position (parking lamps ON), the parking brake is released and the engine is running, the
IPDM E/R de-energizes the headlamp relays and supplies ground to the daytime light relay 1 to actuate the
daytime light function.
OUTLINE
Power is supplied at all times
• to headlamp high relay RH and LH (located in IPDM E/R)
• to headlamp low relay (located in IPDM E/R) and
• to ignition relay (located in IPDM E/R)
• through 15A fuse (No. 52, located in IPDM E/R) and
• through 20A fuse (No. 53, located in IPDM E/R)
• to CPU located in IPDM E/R,
• through 40A fusible link (letter g , located in fuse and fusible link box)
• to BCM terminal 70,
• through 10A fuse [No. 8, located in fuse block (J/B)]
• to BCM terminal 57,
• through 10A fuse [No. 13, located in fuse block (J/B)]
• to combination meter terminal 27,
• through 10A fuse (No. 26, located in fuse and fusible link box)
• to the daytime light relay 1.
With the ignition switch in the ON or START position, power is supplied
• to the ignition relay (located in IPDM E/R),
• through 10A fuse [No. 6, located in fuse block (J/B)]
• to BCM terminal 38,
1. IPDM E/R E43, E46, E47 and E48 2. BCM M18 and M20 (view with glove
box removed)3. Combination switch (lighting switch)
M28
4. Combination meter M24 5. Daytime light relay 1 E37 and day-
time light relay 2 E38 6. Parking brake switch M17
WKIA5555E
Revision: January 20102010 Versa

LT-36
< SERVICE INFORMATION >
HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -
How to Perform Trouble Diagnosis
INFOID:0000000005394903
1. Confirm the symptom or customer complaint.
2. Understand operation, description and function description. Refer to LT-28, "
System Description" .
3. Perform the Preliminary Check. Refer to LT-36, "
Preliminary Check" .
4. Check symptom and repair or replace the cause of the malfunction.
5. Does the daytime light syst em operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
Preliminary CheckINFOID:0000000005394904
CHECK BCM CONFIGURATION
1.CHECK BCM CONFIGURATION
Confirm BCM configuration for "DTRL" is set to "WITH". Refer to BCS-19, "
Configuration" .
OK or NG
OK >> Continue preliminary check. Refer to BCS-16, "BCM Power Supply and Ground Circuit Inspec-
tion" .
NG >> Change BCM configuration for "DTRL" to "WITH". Refer to BCS-19, "
Configuration" .
CHECK POWER SUPPLY AND GROUND CIRCUIT FOR BCM
Refer to BCS-16, "BCM Power Supply and Ground Circuit Inspection" .
CHECK POWER SUPPLY AND GROUND CIRCUIT FOR IPDM E/R
Refer to PG-27, "IPDM E/R Power/Ground Circuit Inspection" .
CONSULT-III Function (BCM)INFOID:0000000005613050
Refer to LT-13, "CONSULT-III Function (BCM)" .
CONSULT-III Function (IPDM E/R)INFOID:0000000005613051
Refer to LT-14, "CONSULT-III Function (IPDM E/R)" .
Daytime Light Control Does Not Operate Properly (High Beam Headlamps Operate
Properly)
INFOID:0000000005394907
1.CHECK DAYTIME LIGHT RELAY 1 FUSE
Inspect daytime light relay fuse 10A fuse (No. 26, located in the fuse and fusible link box).
OK or NG
OK >> GO TO 2.
NG >> Repair harness.
2.CHECK DAYTIME LIGHT RELAY 1 POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Remove daytime light relay 1.
3. Check voltage between daytime light relay 1 harness connector E37 terminals 2, 5 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3.CHECK DAYTIME LIGHT RELAY 1
1. Apply battery voltage to daytime light relay 1 terminal 2 and supply ground to terminal 1. 2, 5 - Ground
: Battery voltage should exist.
WKIA3305E
Revision: January 20102010 Versa