2004 NISSAN TERRANO Service Repair Manual

DIAGNOSTIC PROCEDURE 1-(1)
(Door switch check)
CHECK DOOR SWITCH INPUT SIGNAL.
Remove time control unit from fuse block.
Note: Junction block (J/B) is very frag-
ile. TCU should be removed carefully
to avoid breaking the locking bars.
Check continuity between fuse block (J/B)
and ground.
NG
EOKDoor switch is OK.
CHECK DOOR SWITCH.
1. Disconnect door switch connector.
2. Check continuity between door switch terminals.
OK
ENG Replace door switch.
Check the following.
IDoor switch ground condition
I Harness for open or short between
control unit and door switch
Termi-
nals Condition Continuity
Driver
side door
B07Opened Yes Closed No
Other
door
B01Opened Yes Closed No
Terminals Condition Continuity
q
1- ground Closed No
Open Yes
YEL337D
YEL900E
H
H
THEFT WARNING SYSTEM
Trouble Diagnoses (Cont'd)
EL-268
http://vnx.su/

DIAGNOSTIC PROCEDURE 1-(2)
(Hood switch check)
CHECK HOOD SWITCH INPUT SIGNAL.
Remove time control unit from fuse block.
Note: Junction block (J/B) is very frag-
ile. TCU should be removed carefully
to avoid breaking the locking bars.
Check continuity between control unit ter-
minal
U32and ground.
NG
EOKHood switch is OK.
CHECK HOOD SWITCH.
1. Disconnect hood switch connector.
2. Check continuity between hood switch
terminals.
OK
ENG Replace hood switch.
Check the following.
IHood switch ground circuit
I Harness for open or short between con-
trol unit and hood switch
Condition Continuity
Hood is open. Yes
Hood is closed. No
Terminals Condition Continuity
q
1-q2Pushed No
Released Yes
YEL901E
YEL902E
H
H
THEFT WARNING SYSTEM
Trouble Diagnoses (Cont'd)
EL-269
http://vnx.su/

DIAGNOSTIC PROCEDURE 2
(Security indicator check)
CHECK INDICATOR LAMP OUTPUT
SIGNAL.
1. Remove time control unit from fuseblock.
Note: Junction block (J/B) is very
fragile. TCU should be removed
carefully to avoid breaking the lock-
ing bars.
2. Check voltage between time control unit terminal
U18and ground.
Battery voltage should exist.
NG
EOK Security indicator lamp is
OK.
CHECK INDICATOR LAMP.
OK
ENGReplace indicator lamp.
CHECK POWER SUPPLY CIRCUIT FOR
INDICATOR.
1. Disconnect combination meter connec-
tor.
2. Check voltage between combination meter terminal q
27and ground.
Battery voltage should exist.
OK
ENG Check the following:
I10A fuse [No.
16,
located in the fuse block
(J/B)]
I Harness for open or
short between combina-
tion meter and fuse
Check harness for open or short between
combination meter connector and time
control unit.
YEL903E
YEL904E
H
H
H
THEFT WARNING SYSTEM
Trouble Diagnoses (Cont'd)
EL-270
http://vnx.su/

DIAGNOSTIC PROCEDURE 3
(Door unlock sensor check)
CHECK DOOR UNLOCK SENSOR INPUT SIG-
NAL.
Remove time control unit from fuse block.
Note: Junction block (J/B) is very fragile.
TCU should be removed carefully to avoid
breaking the locking bars.
Check continuity between time control unit termi-
nalsq
25,q35,q36and ground.
NG
EOK
Door unlock sensor
is OK.
CHECK DOOR UNLOCK SENSOR.
1. Disconnect door unlock sensor connector.
2. Check continuity between door unlock sensor terminals.
OK
ENG Replace door
unlock sensor.
Check the following:
IDoor unlock sensor ground circuit
I Harness for open or short between control unit
and door unlock sensor
Terminals
Condition Continuity
!@
Driver
side door
U35Ground Locked No
Unlocked Yes
Passen- ger
side door
U36Ground Locked No
Unlocked Yes
Rear door
U25Ground Locked No
Unlocked Yes
Terminals Condition Continuity
Front with
super lock and rear q
2-
q5Locked No
Unlocked Yes
Front with- out super lock q
2-
q4Locked No
Unlocked Yes
YEL342D
YEL905E
H
H
THEFT WARNING SYSTEM
Trouble Diagnoses (Cont'd)
EL-271
http://vnx.su/

DIAGNOSTIC PROCEDURE 4
(Door key cylinder switch check)
CHECK DOOR KEY CYLINDER SWITCH
INPUT SIGNAL (LOCK SIGNAL).
Check voltage between time control unit
connector terminal
U29and ground.
NG
EOKDoor key cylinder switch is
OK.
CHECK DOOR KEY CYLINDER
SWITCH.
1. Disconnect door key cylinder switch
connector.
2. Check continuity between door key cylinder switch terminals.
OK
ENG Replace key cylinder
switch.
Check the following:
IHarness connectors between key cylin-
der switch and time control unit
I Door key cylinder switch ground circuit
I Harness for open or short-circuit
between time control unit and door key
cylinder.
Key cylinder switch operation Voltage (V)
Lock 0
Unlock/neutral 5
Terminals Key position Continuity
q
1-q2Unlock/neutral No
Lock Yes
YEL907E
NEL614
H
H
THEFT WARNING SYSTEM
Trouble Diagnoses (Cont'd)
EL-272
http://vnx.su/

DIAGNOSTIC PROCEDURE 5
(Theft warning horn alarm check)
CHECK THEFT WARNING HORN
ALARM OPERATION.
1. Remove time control unit from fuseblock.
Note: Junction block (J/B) is very
fragile. TCU should be removed
carefully to avoid breaking the lock-
ing bars.
2. Apply ground to time control unit con- nector terminal
U43.
Does horn alarm activate?
No
EYe s Theft warning horn is OK.
Check theft warning horn relay.
OK
ENGReplace.
CHECK POWER SUPPLY FOR THEFT
WARNING HORN RELAY.
1. Disconnect theft warning horn relay
connector.
2. Check voltage between terminal q
1and
ground, and q
3and ground.
Battery voltage should exist.
OK
ENG Check the following:
I10A fuse (No.
16 ,
located in the fuse and
fusible link box)
I Harness for open or
short between theft
warning horn relay and
fuse
CHECK THEFT WARNING HORN RELAY
CIRCUIT.
1. Disconnect theft warning horn relay
connector.
2. Check continuity between theft warn- ing horn relay q
2and time control unit
terminal
U43.
Continuity should exist.
3. Check continuity between theft warn- ing horn relay q
5and theft warning
horn connector terminal 1.
Continuity should exist.
OK
ENG Repair harness.
Check harness for open between theft
warning horn and ground.
NEL615
NEL616
YEL906E
H
H
H
H
THEFT WARNING SYSTEM
Trouble Diagnoses (Cont'd)
EL-273
http://vnx.su/

DIAGNOSTIC PROCEDURE 6
(Hazard lamp alarm check)
Push hazard switch to ON.
Check hazard lamp operation.
NG
EOKReplace time control unit.
1. Remove time control unit from fuse
block (J/B).
Note: Junction block (J/B) is very
fragile. TCU should be removed
carefully to avoid breaking the lock-
ing bars.
2. Check harness continuity between fuse block (J/B) terminals
U11and
U15and ground.
Continuity should exist.
OK
ENG Check the following.
IHarness connectors
I Fuse block (J/B)
I Turn signal lamps
I Harness between time
control unit and turn sig-
nal lamps, turn signal
lamps and ground.
Replace time control unit.
NEL618
H
H
THEFT WARNING SYSTEM
Trouble Diagnoses (Cont'd)
EL-274
http://vnx.su/

Engine Compartment
YEL842E
LOCATION OF ELECTRICAL UNITS
EL-275
http://vnx.su/