Toyota Celica Supra 1986 Service And Repair Manual page 640

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B
E-92
BODY ELECTRICAL SYSTEM -Theft Deterrent System
CONTINUED FROM PREVIOUS PAGE
INSPECT LH DOOR LOCK SOLENOID CIRCUP Open circuit in wire harness between
Disconnect connector from computer.
No
terminal 1 of computer and terminal 2 of
Is there continuity between terminal 1 of wire
door lock solenoid.
harness side connector and body ground
with LH door unlocked?
Yes
INSPECT RH DOOR LOCK SOLENOID CIRCUI Open circuit in wire harness between
Disconnect connector from computer.
No
terminal 2 of computer and terminal 2 of
Is there continuity between terminal 2 of w ire
door lock solenoid.
harness side connector and body ground
with RH door unlocked?
Yes
INSPECT LH DOOR LOCK SWITCH CIRCUIT Short circuit in wire harness between
Close LH Door. Yes terminal 6 of computer and terminal2 of
Is there continuity between terminal 6 and
LH door lock switch.
body ground with LH door closed?
No
INSPECT RH DOOR LOCK SWITCH CIRCUIT Short circuit in wire harness between
Close RH door.
Yes
terminal 6 of computer and terminal 2 of
Is there continuity between terminal 6 and
RH door lock switch.
body ground with RH door closed?
No
INSPECT HORN, TAI LLIGHT AND HEAD-
Open circuit in wire harness between
LIGHT CIRCUIT
No terminal 12 of computer and horn or
Is there battery voltage between terminal 12 and
taillight control relay or headlight control
body ground.
relay.
Yes
I
Replace computer.
I
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