Connectors

Key Unlock Switch

Door Lock Solenoid

Door Lock Switch

Theft Deterrent Horn

Headlight Control Relay T8illight Control Relay a

8ack Door Courtesy Switch

Back Door Key Unlock Switch

Diode (For RH Key Unlock Switch and Horn)

Diode (For LH Key Unlock Switch and Taillight Control Relay)

Theft Deterrent Computer

Id

4

3

2

■I

Ll2

11

10

9

8

7

• Check that the operation of other systems (Door Lock Control, Open Door Warning ... etc.) are normal.

♦ When the system is not operating, lower the door glass and confirm under what conditions it does not operate, or malfunctions.

Problem

Section

Theft deterrent system can not be set.

A

Theft deterrent system does not operate when LH door opened.

B

Theft deterrent system does not operate when RH door opened.

C

Theft deterrent system does not cancel when ignition switch turned on or ACC position.

D

Theft deterrent system does not cancel when LH door unlocked with key.

E

Theft deterrent system does not cancel when RH door unlocked with key.

F

Horn does not blow even if theft deterrent system operated.

G

Headlights and taillights do not flash even if theft deterrent system operated.

H

Yes

INSPECTION OF LH DOOR UNLOCK CIRCUIT

LH DOOR LOCK S/W

INSPECT DOOR LOCK SWITCH OPERATION

Is LH door lock switch normal ?

(See page BE-99)

Yes

COMPUTER

INSPECT DOOR LOCK SWITCH CIRCUIT

Disconnect connector from computer. Is there continuity between terminal 6 of connector side and body ground with LH door closed ?

Short circuit in wire harness between terminal 6 of computer and terminal 1 of LH door lock switch.

Replace computer.

INSPECTION OF RH DOOR UNLOCK CIRCUIT

RH DOOR LOCK S/W

INSPECT DOOR LOCK SWITCH OPERATION

Is RH door lock switch normal ?

(See page BE-99)

Yes

COMPUTER

INSPECT DOOR LOCK SWITCH CIRCUIT

Disconnect connector from computer. Is there continuity between terminal 6 of connector side and body ground with RH door closed ?

Short circuit in wire harness between terminal 6 of computer and terminal 1 of RH door lock switch.

Replace computer.

INSPECTION OFTHEFT DETERRENT HORN CIRCUIT

Turn ignition switch off.

Is HAZ fuse norma

1?

Replace fuse. Is operation normal?

Short circuit in wire harness between fuse and terminal 1 of theft deterrent horn.

Fuse faulty.

THEFT DETERRENT HORN -1_

INSPECT POWER SOURCE

Disconnect connector from horn. Is there battery voltage between terminal 1 of connector side and body ground ?

Open circuit in wire harness between terminal 1 of horn and fuse.

COMPUTER

Yes

INSPECT HORN OPERATION

Is horn normal ? (See page BE-100)

Yes

INSPECT HORN CIRCUIT

Disconnect connectors from horn and computer.

Is there continuity between terminal 2 of horn side connector and terminal 12 of computer side connector ?

Open circuit in wire harness between N0 terminal 12 of computer and terminal 2 of horn.

Replace computer.

Theft Deterrent Computer

INSPECTION OF THEFT DETERRENT COMPUTER

INSPECT THEFT DETERRENT COMPUTER CIRCUIT

Disconnect the computer and inspect the connector on the wire harness side as shown in the chart below.

Terminal

Check Item

Tester Connection

Condition

Voltage or Continuity

1

Continuity

1-Body Ground

Fl door lock knob unlocked

Continuity

Fl door lock knob locked

No continuity

2

Continuity

2-Body Ground

Fr door lock knob unlocked

Continuity

Fr door lock knob locked

No continuity

4

Voltage

4—Body Ground

Turn ignition switch to ON or ACC

Battery voltage

Turn ignition switch off

No voltage

5

Voltage

5-Body Ground

Battery voltage

6

Continuity

6-Body Ground

Fl or Fr door opened

Continuity

Ft and Fr door closed

No continuity

8

Continuity

8-Body Ground

Back door opened

Continuity

Back door closed

No continuity

9

Continuity

9-Body Ground

Fl or Fr door unlocked with key

Continuity

Fl and Fr door locked with key

No continuity

10

Continuity

10-Body Ground

Continuity

11

Continuity

11-Body Ground

8ack door unlocked with key

Continuity

Back door locked

No continuity

12

Voltage

12-Body Ground

Battery voltage

If circuit is correct, replace the theft deterrent computer.

J

L

1

2

Door Lock Switch

INSPECTION OF DOOR LOCK SWITCH

INSPECT SWITCH OPERATION

(a) Check that there is continuity between terminals with the door closed.

(b) Check that there is no continuity between terminals with the door opened.

If operation is not as specified, replace the switch.

Back Door Courtesy Switch

INSPECTION OF BACK DOOR COURTESY SWITCH

INSPECT SWITCH OPERATION

(a) Check that there is continuity between terminal and body ground when the switch is free.

(b) Check that there is no continuity between terminal and body ground when the switch pin is pushed.

If operation is not as specified, replace the switch.

Back Door Key Unlock Switch

INSPECTION OF BACK DOOR KEY UNLOCK SWITCH

INSPECT SWITCH CONTINUITY

(a) Check that there is continuity between terminals 1 and 3 with the switch is unlock position.

(b) Check that there is no continuity between terminals 1 and 3 with the switch is except unlock position.

If continuity is not as specified, replace the switch.

Diode (For LH Key Unlock Switch and Taillight Control Relay)

INSPECTION OF DIODE

INSPECT DIODE CONTINUITY

Connect the test leads of the ohmmeter to terminals 1 and 2, and check for continuity. Next reverse the test leads and check, again, for continuity.

If both of the test results are same condition, replace the diode.

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