Nissan Terrano model r20 series 2004. Instruction — part 418
DIAGNOSTIC PROCEDURE 3
(Door lock actuator check)
CHECK DOOR LOCK ACTUATOR CIR-
CUIT.
Check voltage for door lock actuator.
Before operating passenger side knob
lock switch, close all doors.
OK
E
NG
Door lock actuator is OK.
CHECK DOOR LOCK ACTUATOR.
1. Disconnect door lock actuator connec-
tor.
2. Apply 12V direct current to door lock
actuator and check operation.
OK
E
NG
Replace door lock actuator
assembly.
Check harness between control unit and
door lock actuator.
Knob lock
switch
condition
Terminals
Voltage
(V)
!
@
Unlock
,
Lock
U41
Ground
Approx.
12
(Approx.
5 sec-
onds)
U42
Lock
,
Unlock
U44
Ground
Door lock actuator
operation
Terminals
!
@
Unlocked
,
Locked
q
1
q
3
Locked
,
Unlocked
q
3
q
1
YEL911E
YEL912E
H
H
POWER DOOR LOCK
Trouble Diagnoses (Cont’d)
EL-176
DIAGNOSTIC PROCEDURE 4
(Door switch check)
CHECK DOOR SWITCH INPUT SIGNAL.
Check voltage between fuse block (J/B)
and ground.
NG
E
OK
Door switch is OK.
CHECK DOOR SWITCH.
1) Disconnect door switch connector.
2) Check continuity between door switch
terminals.
OK
E
NG
Replace door switch.
Check the following.
I
Door switch ground condition
I
Harness for open or short between con-
trol unit and door switch
Termi-
nals
Condition
Voltage (V)
Driver
side door
B07
Opened
0
Closed
Approx. 12
Other
door
B01
Opened
0
Closed
Approx. 12
Terminals
Condition
Continuity
q
1
- ground
Closed
No
Open
Yes
YEL312D
YEL913E
H
H
POWER DOOR LOCK
Trouble Diagnoses (Cont’d)
EL-177
DIAGNOSTIC PROCEDURE 5
(Key switch check)
CHECK KEY SWITCH INPUT SIGNAL.
Check voltage between control unit termi-
nal
U22
and ground.
NG
E
OK
Key switch is OK.
CHECK KEY SWITCH POWER SUPPLY.
Check voltage between key switch har-
ness terminal
q
2
and ground.
Battery voltage should exist.
OK
E
NG
Check the following.
I
10A fuse [No. 16 ,
located in fuse block
(J/B)]
I
Harness for open or
short between key
switch and fuse
CHECK KEY SWITCH.
1) Disconnect key switch connector.
2) Check continuity between ignition
switch terminals.
OK
E
NG
Replace key switch.
Check harness for open or short between
control unit and key switch.
Condition of key switch
Voltage (V)
Key is inserted
Approx. 12
Key withdrawn
0
Terminals
Condition
Continuity
q
1
-
q
2
Key is
inserted.
Yes
Key is with-
drawn.
No
YEL316D
YEL979E
YEL914E
H
H
H
POWER DOOR LOCK
Trouble Diagnoses (Cont’d)
EL-178
Component Parts Location
YEL298D
POWER DOOR LOCK — SUPER LOCK —
EL-179
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