2003 NISSAN ALMERA N16 Engine control circuit

DOOR KEY CYLINDER SWITCH CHECKNJEL0505S05
1 CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL (LOCK/UNLOCK SIGNAL)
Check voltage between time control unit harness connector terminals 28 or29 and ground.
SEL470X
Refer to wiring diagram in EL-267.
OK or NG
OK Door key cylinder switch is OK.
NG GO TO 2.
2 CHECK DOOR KEY CYLINDER SWITCH
1. Disconnect door key cylinder switch harness connector.
2. Check continuity between door key cylinder switch terminals.
SEL471X
OK or NG
OKCheck the following.
Door key cylinder switch ground circuit
Harness for open or short between time control unit and door key cylinder switch
NG Replace door key cylinder switch.
GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
IDX
POWER DOOR LOCK
Trouble Diagnoses/YD Engine Models with Common Rail and K9K Engine Models(Cont’d)
EL-295

DOOR SWITCH CHECK=NJEL0505S08
1 CHECK DOOR SWITCH INPUT SIGNAL
Check voltage between time control unit harness connector terminal 6 and ground.
SEL475X
Refer to wiring diagram in EL-265.
OK or NG
OK Door switch is OK.
NG GO TO 2.
2 CHECK DOOR SWITCH
1. Disconnect door switch harness connector.
2. Check continuity between door switch terminals.
SEL325WA
OK or NG
OKCheck the following.
Door switch ground circuit or door switch ground condition
Harness for open or short between smart entrance control unit and door switch
NG Replace door switch.
POWER DOOR LOCK
Trouble Diagnoses/YD Engine Models with Common Rail and K9K Engine Models(Cont’d)
EL-298

DOOR UNLOCK SENSOR CHECK=NJEL0505S09
1 CHECK DOOR UNLOCK SENSOR INPUT SIGNAL
Check voltage between time control unit terminal 35 or 36 and ground.
SEL476X
Refer to wiring diagram in EL-268.
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 4.
YEL847D
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.
GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
IDX
POWER DOOR LOCK
Trouble Diagnoses/YD Engine Models with Common Rail and K9K Engine Models(Cont’d)
EL-299

SYMPTOM CHARTNJEL0581S04
Symptom Malfunctioning systemReference
page
SYMPTOM 1
Power door lock does not operate using any switchPower supply and ground circuit check EL-317
Door lock actuator check EL-321
If above systems are OK, replace smart entrance con-
trol unit.—
SYMPTOM 2
Power door lock does not operate with lock/unlock
switch.Door lock/unlock switch check EL-319
If above system is OK, replace smart entrance control
unit.—
SYMPTOM 3
Specific door lock actuator does not operate.Door lock actuator check EL-321
If above system is OK, replace smart entrance control
unit.—
SYMPTOM 4
Super lock cannot be set by door key cylinder.Super lock actuator check EL-336
Key switch check EL-335
Ignition switch ON circuit check EL-318
If above systems are OK, replace smart entrance con-
trol unit.—
SYMPTOM 5
*Super lock cannot be released by door key cylinder.Super lock actuator check EL-336
If above systems are OK, replace smart entrance con-
trol unit.—
SYMPTOM 6
*Super lock cannot be released by ignition key switch.Super lock actuator check EL-336
Ignition switch “ON” circuit check EL-318
If above systems are OK, replace smart entrance con-
trol unit.—
SYMPTOM 7
Specific super lock actuator does not operate.Super lock actuator check EL-336
If above system is OK, replace smart entrance control
unit.—
SYMPTOM 8
*Key reminder system does not operate.Door switch check EL-327
Trunk room lamp switch or back door switch check —
Key switch check EL-335
If above system is OK, replace smart entrance control
unit.—
*: Make sure the power door lock system operates properly.
POWER DOOR LOCK — SUPER LOCK —
Trouble Diagnosis/QG and YD Engine Models with Common Rail (Cont’d)
EL-316

POWER SUPPLY AND GROUND CIRCUIT CHECKNJEL0581S05
1 CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect smart entrance control unit connector.
3. Check voltage between smart entrance control unit harness connector M195 terminal 49 (W/L), 56 (R/B) and ground.
SIIA1564E
MTBL1480
OK or NG
OK GO TO 2.
NG Check smart entrance control unit power supply circuit for open or short.
2 CHECK GROUND CIRCUIT
Check continuity between smart entrance control unit harness connector M195 terminal 53 (B) and ground.
SIIA1565E
MTBL1481
OK or NG
OK Power supply and ground circuit is OK.
NG Check smart entrance control unit ground circuit for open or short.
GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
IDX
POWER DOOR LOCK — SUPER LOCK —
Trouble Diagnosis/QG and YD Engine Models with Common Rail (Cont’d)
EL-317

IGNITION SWITCH “ON” CIRCUIT CHECKNJEL0581S11
1 CHECK IGNITION ON SIGNAL
1. Disconnect smart entrance control unit connector.
2. Check voltage between smart entrance control unit harness connector M194 terminal 29 (Y/G) and ground.
SIIA1602E
MTBL1553
OK or NG
OK Ignition ON signal is OK.
NGCheck the following.
10A fuse [No. 10, located in fuse block (J/B)]
Harness for open or short between smart entrance control unit and fuse
POWER DOOR LOCK — SUPER LOCK —
Trouble Diagnosis/QG and YD Engine Models with Common Rail (Cont’d)
EL-318

2 CHECK DOOR LOCK/UNLOCK SWITCH
1. Disconnect door lock/unlock switch harness connector.
2. Check continuity between each door lock/unlock switch terminals.
Power window main switch (Door lock/unlock switch) (With power window system)
YEL803C
Door lock/unlock switch (Without power window system)
SEL469X
OK or NG
OKCheck the following.
Ground circuit for door lock/unlock switch
Harness for open or short between door lock/unlock switch and smart entrance control
unit connector
NG Replace power window main switch (door lock/unlock switch).
POWER DOOR LOCK — SUPER LOCK —
Trouble Diagnosis/QG and YD Engine Models with Common Rail (Cont’d)
EL-320

3 CHECK DOOR LOCK ACTUATOR CIRCUIT
1. Disconnect smart entrance control unit harness connector.
2. Check continuity between door lock actuator (driver side) harness connector D27 terminal 1 (L), 3 (W/R) and smart
entrance control unit harness connector M43 terminal 51 (L/R), 52 (W/R).
YEL836D
MTBL1486
OK or NG
OK Replace smart entrance control unit.
NG Check harness for open or short between smart entrance control unit and door lock
actuator (driver side).
Passenger SideNJEL0581S0702
1 CHECK DOOR LOCK SIGNAL
1. Disconnect door lock actuator (passenger side) harness connector.
2. Check voltage between door lock actuator harness connector D48 terminal 1 (R/B), 3 (W/R) and ground.
YEL834D
MTBL1487
OK or NG
OK GO TO 2.
NG GO TO 3.
POWER DOOR LOCK — SUPER LOCK —
Trouble Diagnosis/QG and YD Engine Models with Common Rail (Cont’d)
EL-322