Nissan Terrano r20e. Instruction — part 245
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.
Front door
Rear door
NG
E
OK
Check harness between
control unit and door lock
actuator.
Replace door lock actuator assembly.
Knob lock
switch
condition
Terminals
Voltage
(V)
!
@
Unlock
,
Lock
U41
Ground
Approx.
12
(Approx.
5 sec-
onds)
Lock
,
Unlock
U44
Ground
Door lock actuator
operation
Terminals
!
@
Unlocked
,
Locked
q
6
q
3
Locked
,
Unlocked
q
3
: (LHD)
q
4
: (RHD)
q
6
: (LHD)
q
1
: (RHD)
Door lock actuator
operation
Terminals
!
@
Unlocked
,
Locked
q
6
: (LH)
q
1
: (RH)
q
3
: (LH)
q
4
: (RH)
Locked
,
Unlocked
q
3
: (LH)
q
4
: (RH)
q
6
: (LH)
q
1
: (RH)
YEL305D
YEL306D
YEL307D
H
H
POWER DOOR LOCK — SUPER LOCK —
Trouble Diagnoses (Cont’d)
EL-163
DIAGNOSTIC PROCEDURE 4
(Super lock actuator check)
CHECK SUPER LOCK ACTUATOR CIRCUIT.
Check voltage for super lock actuator.
Note:
Put the system in set condition before check-
ing release signal.
OK
E
NG
Super lock actuator is
OK.
CHECK SUPER LOCK ACTUATOR.
1. Disconnect door lock actuator assembly
connector.
2. Set lever A in lock position.
3. Apply 12V direct current to door lock actua-
tor assembly and check operation.
Front door
Rear door
NG
E
OK
Check harness
between control unit
and door lock actuator
assembly.
Replace door lock actuator assembly.
Door key
cylinder
switch con-
dition
Terminals
Voltage
(V)
!
@
Lock (Set)
U40
Ground
Approx. 12
Unlock
(Released)
U44
Ground
Super lock
actuator
operation
Terminals
Connec-
tion from
lever A to
lever B
!
@
Released
,
Set
q
1
q
4
Discon-
nect
Set
,
Released
q
4
q
1
Connect
Super lock
actuator
operation
Terminals
Connec-
tion from
lever A to
lever B
!
@
Released
,
Set
q
1
: (LH)
q
6
: (RH)
q
4
: (LH)
q
3
: (RH)
Discon-
nect
Set
,
Released
q
4
: (LH)
q
3
: (RH)
q
1
: (LH)
q
6
: (RH)
Connect
YEL308D
YEL309D
YEL310D
YEL311D
H
H
POWER DOOR LOCK — SUPER LOCK —
Trouble Diagnoses (Cont’d)
EL-164
DIAGNOSTIC PROCEDURE 5
(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
Other
door
switches
q
1
-
ground
Closed
No
Open
Yes
YEL312D
YEL313D
H
H
POWER DOOR LOCK — SUPER LOCK —
Trouble Diagnoses (Cont’d)
EL-165
DIAGNOSTIC PROCEDURE 6
(NATS release signal check)
Does engine start properly?
Yes
E
No
Check NATS system.
CHECK NATS SIGNAL CIRCUIT.
1) Disconnect control unit connector and
NATS IMMU connector.
2) Check continuity between control unit
terminal
U26
and NATS IMMU termi-
nal
q
3
.
Continuity should exist.
3) Check continuity between control unit
terminal
U26
and ground.
Continuity should not exist.
OK
E
NG
Repair harness.
CHECK NATS RELEASE SIGNAL.
1) Connect control unit connector and
NATS IMMU connector.
2) Check voltage between control unit
terminal
U26
and ground.
OK
E
NG
Check NATS system.
Replace super lock control unit.
Ignition switch condition
Voltage
[V]
LOCK
12
More than 10 seconds after ignition
switch turned to “ON” position
For 10 seconds after ignition
switch turned to “ON” position
Pulse
YEL314D
YEL315D
H
H
H
POWER DOOR LOCK — SUPER LOCK —
Trouble Diagnoses (Cont’d)
EL-166
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