NISSAN LATIO 2007 Service Repair Manual

BL-52
POWER DOOR LOCK SYSTEM
Revision: June 20062007 Versa
2. CHECK PASSENGER SELECT UNLOCK RELAY INPUT
1. Disconnect passenger select unlock relay.
2. Check continuity between BCM connector (A) M20 terminal 65
and passenger select unlock relay connector (B) M2 terminal 3.
3. Check continuity between BCM connector (A) M20 terminal 65
and body ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness between BCM and relay.
3. CHECK PASSENGER SELECT UNLOCK RELAY OUTPUT
1. Disconnect inoperative rear door lock actuator.
2. Check continuity between passenger select unlock relay con-
nector (A) M2 terminal 4 and rear door lock actuator LH connec-
tor (B) D205 or rear door lock actuator RH connector (C) D305
terminal 3.
3. Check continuity between passenger select unlock relay con-
nector (A) M2 terminal 4 and ground.
OK or NG
OK >> Replace passenger select unlock relay.
NG >> Repair or replace harness between relay and actuator.65 - 3 : Continuity should exist.
65 - Ground : Continuity should not exist.
WIIA1165E
4 - 3 : Continuity should exist.
4 - Ground : Continuity should not exist.
WIIA1166E

POWER DOOR LOCK SYSTEM
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4. CHECK REAR DOOR LOCK ACTUATOR ASSEMBLY
1. Reconnect BCM.
2. Check voltage between rear door lock actuator connector LH (A)
D205 or rear door lock actuator connector RH (B) D305 termi-
nals 2 and 3.
3. Check voltage between rear door lock actuator connector LH (A)
D205 or rear door lock actuator connector RH (B) D305 termi-
nals 2 and 3.
OK or NG
OK >> Replace rear door lock actuator. Refer to BL-172, "Removal and Installation" .
NG >> Repair or replace harness between actuator and splice.
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
A: D205 (LH)
B: D305 (RH)32Main power window and
door lock/unlock switch is
turned to LOCK0 → Battery voltage
WIIA1167E
ConnectorTerminals
ConditionVoltage (V)
(Approx.)
(+) (-)
A: D205 (LH)
B: D305 (RH)23Main power window and
door lock/unlock switch is
turned to UNLOCK0 → Battery voltage
WIIA1216E

BL-54
REMOTE KEYLESS ENTRY SYSTEM
Revision: June 20062007 Versa
REMOTE KEYLESS ENTRY SYSTEMPFP:28596
Component Parts and Harness Connector LocationEIS00919
LIIA2594E
1. BCM M18, M19, M20
(view with glove box removed)2. Remote keyless entry receiver M23 3. Horn relay H-1
(front of battery)
4. IPDM E/R E46, E48 5. Front door switch LH B8, RH B108 6. Rear door switch LH B6, RH B116
7. Back door lock assembly (back door
switch) D405 (with back door open)8. Key switch and key lock solenoid
M279. Horn (low) E18, E20
10. Horn (high) E21, E22

REMOTE KEYLESS ENTRY SYSTEM
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System DescriptionEIS0091A
INPUTS
Power is supplied at all times

through 40A fusible link (letter g , located in the fuse and fusible link box)

to BCM terminal 70

through 10A fuse [No. 8, located in the fuse block (J/B)]

to BCM terminal 57.
When the key switch is ON (key is inserted in ignition key cylinder), power is supplied

through 10A fuse [No. 14, located in the fuse block (J/B)]

through key switch terminals 2 and 1

to BCM terminal 37.
When the ignition switch is ACC or ON, power is supplied

through 10A fuse [No. 20, located in the fuse block (J/B)]

to BCM terminal 11.
Ground is supplied

to BCM terminal 67

through body grounds M57 and M61.
When the front door switch LH is ON (door is OPEN), ground is supplied

to BCM terminal 47

through front door switch LH terminal 2

through front door switch LH case ground.
When the front door switch RH is ON (door is OPEN), ground is supplied

to BCM terminal 12

through front door switch RH terminal 2

through front door switch RH case ground.
When the rear door switch LH is ON (door is OPEN), ground is supplied

to BCM terminal 48

through rear door switch LH terminal 1

through rear door switch LH case ground.
When the rear door switch RH is ON (door is OPEN), ground is supplied

to BCM meter terminal 13

through rear door switch RH terminal 1

through rear door switch RH case ground.
When the back door lock assembly (back door switch) is ON (back door is OPEN), ground is supplied

to BCM terminal 43

through back door lock assembly (back door switch) terminals 3 and 4

through body grounds B117, B132 and D402.
Keyfob signal is inputted to BCM from remote keyless entry receiver.
The remote keyless entry system controls operation of the

power door lock

hazard reminder

auto door lock

panic alarm

room lamp

BL-56
REMOTE KEYLESS ENTRY SYSTEM
Revision: June 20062007 Versa
OPERATED PROCEDURE
Power Door Lock Operation
BCM receives a LOCK signal from keyfob. BCM locks all doors with input of LOCK signal from keyfob.
BCM receives a UNLOCK signal from keyfob. BCM unlocks all doors with input of UNLOCK signal from key-
fob.
Hazard and Horn Reminder
When the doors are locked or unlocked by keyfob, power is supplied to sound horns and flash hazard warning
lamps as follows

LOCK operation: 3 or 4 mode (lamps flash twice)

UNLOCK operation: 2 or 4 mode (lamps flash once)

Horns sound once with LOCK function when this feature is set ON.
The hazard reminder has modes 1, 2, 3 or 4. The horn reminder can be turned ON/OFF with any LOCK mode.
Operating function of hazard reminder
Hazard and horn reminders do not operate if any door switch is ON (any door is OPEN).
How to change hazard and horn reminder modes
With CONSULT-II
Hazard reminder can be changed using “HAZARD LAMP SET” mode in “WORK SUPPORT”.
Horn reminder can be changed using “HORN CHIRP SET” mode in “WORK SUPPORT”.
Refer to BL-61, "
Work Support" .
Without CONSULT-II
Refer to Owner's Manual for instructions.
Auto Door Lock Operation
Auto lock function signal is sent for operation when any of the following signals are not sent within 1 minute
after the unlock signal is sent from the keyfob:

when door switch is turned ON for open.

when the key switch is turned ON.

when the lock signal is sent from the keyfob.
Auto door lock mode can be changed using “AUTO LOCK SET” mode in “WORK SUPPORT”.
Refer to BL-61, "
Work Support" .
Panic Alarm Operation
When key switch is OFF (when ignition key is not inserted in key cylinder), BCM turns on and off horn intermit-
tently with input of PANIC ALARM signal from keyfob.
BCM outputs to IPDM E/R for panic alarm signal (horn signal) as DATA LINE (CAN H line and CAN L line).
The alarm automatically turns off after 25 seconds or when BCM receives any signal from keyfob.
Panic alarm operation mode can be changed using “PANIC ALARM SET” mode in “WORK SUPPORT”.
Refer to BL-61, "
Work Support" .
Interior Lamp Operation
When the following conditions come:

condition of interior lamp switch is in the DOOR position;

door switch OFF (when all the doors are closed);
Remote keyless entry system turns on interior lamp (for 30 seconds) with input of UNLOCK signal from key-
fob. For detailed description, refer to LT- 9 1 , "
INTERIOR ROOM LAMP" .
CAN Communication System DescriptionEIS0091B
Refer to LAN-4, "SYSTEM DESCRIPTION" .
Mode 1 Mode 2 Mode 3 Mode 4
Keyfob operation Lock Unlock Lock Unlock Lock Unlock Lock Unlock
Hazard warning lamp
flash— — — Twice Once — Once Twice
Horns sound (ON/OFF) ON: once — ON: once — ON: once — ON: once —

REMOTE KEYLESS ENTRY SYSTEM
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SchematicEIS0091C
WIWA1961E

BL-58
REMOTE KEYLESS ENTRY SYSTEM
Revision: June 20062007 Versa
Wiring Diagram — KEYLES —EIS0091D
LIWA0547E

REMOTE KEYLESS ENTRY SYSTEM
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LIWA0548E

BL-60
REMOTE KEYLESS ENTRY SYSTEM
Revision: June 20062007 Versa
LIWA0549E

REMOTE KEYLESS ENTRY SYSTEM
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Terminals and Reference Values for BCMEIS0091E
Refer to BCS-12, "Terminals and Reference Values for BCM" .
How to Perform Trouble DiagnosesEIS00A3F
1. Confirm the symptom or customer complaint.
2. Understand operation, description and function description. Refer to BL-55, "
System Description" .
3. Perform the Preliminary Check. Refer to LT- 1 2 , "
Preliminary Check" .
4. Check symptom and repair or replace the component.
5. Does the remote keyless entry system operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
Preliminary CheckEIS00A3G
CHECK BCM CONFIGURATION
1. CHECK BCM CONFIGURATION
Confirm BCM configuration for "KEYLESS ENTRY" is set to "WITH". Refer to BCS-19, "
READ CONFIGURA-
TION PROCEDURE" .
OK or NG
OK >> Refer to BL-64, "Work Flow" .
NG >> Change BCM configuration for "KEYLESS ENTRY" to "WITH". Refer to BCS-21, "
WRITE CON-
FIGURATION PROCEDURE" .
CONSULT-II Function (BCM)EIS0091F
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II START PROCEDURE
Refer to GI-38, "CONSULT-II Start Procedure" .
CONSULT-II APPLICATION ITEMS
Work Support
BCM
diagnostic test itemDiagnostic mode Description
Inspection by partWORK SUPPORTSupports inspections and adjustments. Commands are transmitted to the
BCM for setting the status suitable for required operation, input/output sig-
nals are received from the BCM and received date is displayed.
DATA MONITOR Displays BCM input/output data in real time.
ACTIVE TESTOperation of electrical loads can be checked by sending drive signal to
them.
SELF-DIAG RESULTS Displays BCM self-diagnosis results.
CAN DIAG SUPPORT MNTRThe result of transmit/receive diagnosis of CAN communication can be
read.
ECU PART NUMBER BCM part number can be read.
CONFIGURATION Performs BCM configuration read/write functions.
Test Item Description
REMO CONT ID REGIST Keyfob ID code can be registered.
REMO CONT ID ERASER Keyfob ID code can be erased.
REMO CONT ID CONFIR It can be checked whether keyfob ID code is registered or not in this mode.
PANIC ALRM SETPanic alarm operation mode can be changed in this mode. The operation mode will be
changed when “CURRENT SETTING” on CONSULT-II screen is touched.
HAZARD LAMP SETHazard reminder mode can be changed in this mode. The hazard reminder mode will be
changed when “CURRENT SETTING” on CONSULT-II screen is touched.