Nissan Terrano r20e. Manual - part 264
DIAGNOSTIC PROCEDURE 5
(Theft warning horn alarm check)
CHECK THEFT WARNING HORN
ALARM OPERATION.
1. Remove time control unit from fuse
block.
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
E
Yes
Horn alarm is OK.
Check theft warning horn relay.
OK
E
NG
Replace.
CHECK POWER SUPPLY FOR THEFT
WARNING HORN RELAY.
1) Disconnect theft warning horn relay
connector.
2) Check voltage between terminal
q
1
and
ground, and
q
3
and ground.
Battery voltage should exist.
OK
E
NG
Check the following:
I
10A 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
2
and time control unit
terminal
U43
.
Continuity should exist.
3. Check continuity between theft warn-
ing horn relay
q
5
and theft warning
horn connector terminal.
Continuity should exist.
OK
E
NG
Repair harness.
Check harness for open or short between
theft warning horn relay and time control
unit.
NEL615
NEL616
YEL344D
H
H
H
H
THEFT WARNING SYSTEM
Trouble Diagnoses (Cont’d)
EL-239