1984 NISSAN 300ZX Body Workshop Manual

9 8
I I
1
door lock system
Faulty door switch Faulty door switch circuit
Fwlty door switch ground Faulty harness ground
Faulty door alignment
Faulty ignition swltch U Faulty ignition circuit
I
Ready & armed
phase
Alarm phase
Faulty sub-control AMP
Faulty main control AMP U Faulty adapter harness
I
I v
Refer to Trouble-
shootins
"Starter motor cannot
operate
- Except alarm
(Operation chart step
T)i)0@landm)
phase"

BODYENDANDDOOR
Theft Warning System (Cont'd)
CONTROLLER INSPECTION
This inspection is available only when the cause of trouble in "Troubleshooting" is due to a "faulty sub-
control
AMP" or "faulty main control AMP". Therefore, the entire system needs to be inspected in
advance, according to the "Trouble-shooting procedures"
This inspection should be carried out with the adapter harness disconnected
at the main control AMP
When disconnecting the adapter harness, first disconnect the battery ground cable Be sure to reconnect
battery ground cable afterwards
@I through 0 indicate the respective terminals of the adapter harness connector at the main control
AMP.
This inspection
is based on the premise that the adapter harness is free from abnormalities Therefore,
the adapter harness must be inspected before inspecting the controller
Trouble diagnosis
b Symbols: 0: Execute, X: Not required, H. Approx 12V, L. Lessthan 1V.
Carry out the terminal inspection in this diagnosis chart from left to right.
The term "door" indicates the driver door, assist door, back door, and hood, unless otherwise speci-
fied.
The term "alarm" means that the horn sounds intermittently and the headlamps blink.
BF-42

BODY END AND DOOR
Theft Warning System (Cont'd)
J
J J
I I J
X X 0 0
J I I-
X X
x
X
X
X -
X X
X X X X
X 0 X X
X 0 0
I I I
- 0
c 8
- 0 0
- E 0 .. .
0 0 5
0 a z
BF-43

BODY END AND DOOR
Theft Warning System (Cont'd)
I
I
JI -I I J
I I= X I
XI x I X I I
X X X
0 X 0
I I
I I I
- V 0
0 c
0 Q 0 0 0 I3 z z z
=r
X
I?
O?
Jr
X
X
X
X
0
I
BF-44

BODYENDANDDOOR
Theft Warning System (Cont'd)
X
XIX X X
L X
0
L
x -
I'
0 0 0
+f-
x
0 0 0
X X x
X X
0 0 0 0
I I I I
I
4, a: 2 4
?
5 Q
BF-45

m n
i?. Q, ~
ST-@
I Trouble
condition Trouble-
shooting
Starter motor cen operate
-Alarm phese
(Operation chan step 01
Ignition switch ST
Alarm phase
No I
Starter motor annot owrate
-Exapt alarm phase
Ignition swttch ST
RW cennot ba performed RES
ower source
terminal
inspction
H
H
H
*11 When door IS closed-Dirarmed phase and reset phase *12 When door is opened or ready phase '13 After closing Ea locking door, Walt over 40 seconds and then measure '14 When door IS opened '15 When power door lock system unlocks
*16 Ignition switch ACC, ON or ST
Ground
terminal
inspection Output terminal
inspection
q
0 000
Input terminal inswctton
-
0 - H
e11
L '12 -
H
'13
-
L
'14 -
H '15 *16
Result
OK
(All of
them)
NG
(At
least one of them)

BODY END AND DOOR
Theft Warning System (Cont'd)
@ terminal inspection 'Z) twminal inspeainn
Connect tester between @and subcontrol AMP @ temlnal
I I
Check continuity
@ terminal inspeenon
Connect @and @with jumper cable
u
Doer indicator lamp come on7
(Only If connected)
1 YES I ,
&
@ terminal inspection
Doer starter motor turn?
(Only in above case)
I
&
Connect Oand @I wnh jumper cable
v I T
Does horn sound7
(Only if connected)
6) terminal inspection
1 YES
I
&
Connect@and @with iumpr cable
i__T__li
I
Doer indicator lamp come on7 lOnly if connected)
I I
0 (@ terminal inspection
Connect test lamp (Less than 1W) between @ and @
4
Unlockany key cylinder with key and hold key bervveen
full stroke and neutral
IDriverIanst door or back door)
NO
(Any of
them)
I
Does test lamp come on7 (Only m abow care)
(Both cases)
BF-47

BODY END AND DOOR
Theft Warning System (Cont'd)
@ terminal 8wection 0 terminal inspection
Connect tester between0and @
@ terminal
Dmgrees with
Dmgreer with trouble
Check voltage Ignition switch OFF
Ignition switch ACC or ON H
Agrees wnh trouble diagnosis chart
@ termma1 inspection
Connect tester betwen @and@
Disagrees with
trouble
diagnosis chart
Cheek voltage
Unlock, Neutral L
Lock
iapprox 0 1 second at the < moment of key cylinder operation1 H
~greer wnh trouble
I diagnosis chart I
Connect tester between aand @
Gl terminal 0
Disagrees with
trouble
Door IS closed-Disarmed
phase 01 iesn phase H Door IS opened, key
cylinder
IS drawn out, or
Agrees with trouble
Connect tester between @ and @
@ terminal
I
Voltage H
I
&
I
&
& di~gnoris chart I
BF-48