Engine Control NISSAN ALMERA N16 2003 Electronic Repair Manual

DIAGNOSTIC PROCEDURE 2 (KEY SWITCH INSERT
SIGNAL CHECK)
=NJEL0455S04
1 CHECK KEY SWITCH INPUT SIGNAL
Check voltage between time control unit terminal 22 and ground.
SEL433X
OK or NG
OK Key switch is OK.
NG GO TO 2.
2 CHECK KEY SWITCH (INSERT)
Check continuity between terminals 1 and 2.
YEL799C
OK or NG
OKCheck the following.
10A fuse [No. 12, located in fuse block (J/B)]
Harness for open or short between key switch and fuse
Harness for open or short between time control unit and key switch
NG Replace key switch.
WARNING CHIME
Trouble Diagnoses/YD Engine Models without Common Rail and K9K Engine Models (Cont’d)
EL-154

DIAGNOSTIC PROCEDURE 3 (DOOR UNLOCK SENSOR
CHECK)
NJEL0455S05
1 CHECK DOOR UNLOCK SENSOR INPUT SIGNAL
Check voltage between time control unit terminal 35 and ground.
SEL431X
OK or NG
OK Door unlock sensor is OK.
NG GO TO 2.
2 CHECK DOOR UNLOCK SENSOR
1. Disconnect door unlock sensor connector.
2. Check continuity between door unlock sensor terminals 2 and 5 (RHD models) or 2 and 4 (LHD models).
YEL800C
OK or NG
OKCheck the following.
Door unlock sensor ground circuit
Harness for open or short between time control unit and door unlock sensor
NG Replace door unlock sensor.
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WARNING CHIME
Trouble Diagnoses/YD Engine Models without Common Rail and K9K Engine Models (Cont’d)
EL-155

DIAGNOSTIC PROCEDURE 4=NJEL0455S06
1 CHECK IGNITION ON SIGNAL
Check voltage between time control unit terminal 1 and ground.
YEL821D
OK or NG
OK GO TO 2.
NGCheck the following.
10A fuse [No. 10, located in fuse block (J/B)]
Harness for open or short between time control unit and fuse
2 CHECK DOOR SWITCH INPUT SIGNAL
Check voltage between time control unit terminal 6 and ground.
SEL430X
OK or NG
OK System is OK.
NG Check voltage between time control unit terminal 6 and body ground with disconnecting
front door switch (driver side).
If approx. 5V is supplied, GO TO 3.
If approx. 5V is not supplied, replace time control unit.
WARNING CHIME
Trouble Diagnoses/YD Engine Models without Common Rail and K9K Engine Models (Cont’d)
EL-156

3 CHECK DRIVER SIDE DOOR SWITCH
Check continuity between terminals 2 and 3.
SEL325WA
OK or NG
OKCheck the following.
Driver side door switch ground circuit and condition
Harness for open or short between time control unit and driver side door switch
NG Replace driver side door switch.
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WARNING CHIME
Trouble Diagnoses/YD Engine Models without Common Rail and K9K Engine Models (Cont’d)
EL-157

System Description/QG and YD Engine Models
with Common Rail
=NJEL0552The rear window defogger system is controlled by the smart entrance control unit. The rear window defogger
operates only for approximately 15 minutes.
Power is supplied at all times
through 20A fuse [No. 7, located in the fuse block (J/B)]
to rear window defogger relay terminal 5 (B7 relay models) or 3 (B6 relay models)
through 10A fuse [No. 13, located in the fuse block (J/B)]
to rear window defogger relay terminal 6 (B6 relay models).
through 10A fuse [No. 12, located in the fuse block (J/B)]
to smart entrance control unit terminal 56.
With the ignition switch in the ON or START position, power is supplied
through 10A fuse [No. 10, located in the fuse block (J/B)]
to the rear window defogger relay terminal 1 and
to smart entrance control unit terminal 29.
Ground is supplied to terminal 5 (with manual A/C) or 1 (with auto A/C) of therear window defogger switch
through body grounds F118 (QG engine models), M28 and M67.
When the rear defogger switch is turned ON, ground is supplied
through terminal 3 (with manual A/C) or 9 (with auto A/C) of the rear defogger switch
to smart entrance control unit terminal 22.
Terminal 31 of smart entrance control unit then supplies ground to the rearwindow defogger relay terminal 2.
With power and ground supplied, the rear window defogger relay is energized.
Power is supplied
through terminals 5 and 7 of the rear window defogger relay (B6 relay models)or
through terminal 3 of the rear window defogger relay (B7 relay models)
to the rear window defogger and door mirror defogger.
The rear window defogger has an independent ground.
With power and ground supplied, the rear window defogger filaments heat and defog the rear window.
When the system is activated, the rear window defogger indicator illuminates in the rear window defogger
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REAR WINDOW DEFOGGER
System Description/QG and YD Engine Models with Common Rail
EL-173

System Description/YD Engine Models without
Common Rail and K9K Engine Models
=NJEL0463The rear window defogger system is controlled by the time control unit. Therear window defogger operates
only for approximately 15 minutes.
Power is supplied at all times
through 20A fuse [No. 7, located in the fuse block (J/B)]
to rear window defogger relay terminal 5 (B7 relay models) or 3 (B6 relay models)
through 10A fuse [No. 13, located in the fuse block (J/B)]
to rear window defogger relay terminal 6 (B6 relay models).
through 15A fuse [No. 5, located in the fuse block (J/B)]
to time control unit terminal 9.
With the ignition switch in the ON or START position, power is supplied
through 10A fuse [No. 10, located in the fuse block (J/B)]
to the rear window defogger relay terminal 1 and
to time control unit terminal 1.
Ground is supplied to terminal 5 of the rear window defogger switch throughbody grounds M28 and M67.
When the rear defogger switch is turned ON, ground is supplied
through terminal 3 of the rear defogger switch
to time control unit terminal 3.
Terminal 13 of time control unit then supplies ground to the rear window defogger relay terminal 2.
With power and ground supplied, the rear window defogger relay is energized.
Power is supplied
through terminals 5 and 7 of the rear window defogger relay (B6 relay models)or
through terminal 3 of the rear window defogger relay (B7 relay models)
to the rear window defogger and door mirror defogger.
The rear window defogger has an independent ground.
With power and ground supplied, the rear window defogger filaments heat and defog the rear window.
When the system is activated, the rear window defogger indicator illuminates in the rear window defogger
switch.
REAR WINDOW DEFOGGER
System Description/YD Engine Models without Common Rail and K9K Engine Models
EL-174

Trouble Diagnoses/QG and YD Engine Models
with Common Rail
NJEL0553TERMINALS AND REFERENCE VALUE FOR SMART
ENTRANCE CONTROL UNIT
NJEL0553S01
TERMINALWIRE
COLORITEM CONDITION DATA (DC)
22 L/YMultifunction switch (Rear window
defogger switch) signalMultifunction switch (Rear window defogger
switch) ON0V
Multifunction switch (Rear window defogger
switch) OFFBattery voltage
29 Y/G IGN power supply — Battery voltage
31 WRear window defogger relay control sig-
nalMultifunction switch (Rear window defogger
switch) ONBattery voltage
Multifunction switch (Rear window defogger
switch) OFF0V
53 B Ground — 0V
56 R/B BAT power supply — Battery voltage
TERMINALS AND REFERENCE VALUE FOR
MULTIFUNCTION SWITCH (REAR WINDOW DEFOGGER
SWITCH)
NJEL0553S02
TERMINALWIRE
COLORITEM CONDITION DATA (DC)
1 B Ground — 0V
9 L/Y Rear window defogger switch signal Rear window defogger switch ON Battery voltage
10 L/R Rear window defogger indicator signal Rear window defogger switch ON Battery voltage
PRELIMINARY CHECKNJEL0553S03First perform the “SELF-DIAG RESULTS” in “SMART ENTRANCE”
with CONSULT-II, when perform the each trouble diagnosis.
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REAR WINDOW DEFOGGER
Trouble Diagnoses/QG and YD Engine Models with Common Rail
EL-179

POWER SUPPLY AND GROUND CIRCUIT INSPECTION=NJEL0553S04
1 CHECK FUSE INSPECTION
Check the following.
MTBL1443
OK or NG
OK GO TO 2.
NG Replace fuse.
2 CHECK POWER SUPPLY AND IGNITION INPUT SIGNAL
Check voltage between smart entrance control unit connector M194, M195 terminals 29 and 56 and ground.
MIIA0083E
MTBL1444
OK or NG
OK GO TO 3.
NGCheck the following.
Harness for open or short between smart entrance control unit and fuse
REAR WINDOW DEFOGGER
Trouble Diagnoses/QG and YD Engine Models with Common Rail (Cont’d)
EL-180

3 CHECK CONTROL UNIT GROUND CIRCUIT
Check continuity between smart entrance control unit connector M195 terminal 53 and ground.
MIIA0084E
MTBL1445
OK or NG
OK GO TO 4.
NG Repair or replace harness.
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REAR WINDOW DEFOGGER
Trouble Diagnoses/QG and YD Engine Models with Common Rail (Cont’d)
EL-181

4 CHECK REAR WINDOW DEFOGGER OUTPUT SIGNAL
1. Turn ignition switch to ON position.
2. Check voltage between smart entrance control unit harness connector M194 terminal 31 and ground.
MIIA0085E
MTBL1446
OK or NG
OKCheck the following.
Harness for open or short between 10A fuse [No. 10, located in the fuse block(J/B)]
and rear window defogger relay.
Harness for open or short between rear window defogger relay and smart entrance
control unit.
Rear window defogger relay. Refer to EL-189, “REAR WINDOW DEFOGGER RELAY”.
Rear window defogger filament. Refer to EL-190, “FILAMENT CHECK” and EL-191,
“FILAMENT REPAIR”.
NG GO TO 2.
REAR WINDOW DEFOGGER
Trouble Diagnoses/QG and YD Engine Models with Common Rail (Cont’d)
EL-182