Yes

System normal

No

Step 9

Replace the BCM

(a)

Replace the BCM. Refer to 

11.10.8.1

 

BCM Replacement

.

Confirm the repair completed.

Next

Step 10

System normal.

11.10.7.6 Anti-theft Horn Inoperative

Schematic:

Anti-theft Warning Lamp

Anti-theft Warning Horn

Body 

Control 

Module

FE11-5901b

Diagnostic Steps:

Note

Before carry out this diagnostic procedure, Use scan tool to select as the following sequence: Body Control System /
Active Test / Alarm Horn output control. Drive the anti-theft alarm horn, so it will facilitate quick diagnostic.

Step 1

Check the circuit between the alarm horn wiring harness connector SO39 and the body ground.

Body Electric

Remote Anti-theft System

11-385

Anti-theft Horn Harness Connector S039 

FE11-5906b

(a)

Disconnect the anti-theft horn wiring harness connector
SO39. Refer to 

11.10.8.3

 

Anti-theft Horn Replacement

.

(b)

Measure resistance between anti-theft horn harness
connector SO39 terminal No.2 and the body ground with a
multimeter.
Standard Resistance: Less than 1 Ω

Is the resistance specified value?

Yes

Go to step 3

No

Step 2

Repair the open circuit between the anti-theft horn harness connector SO39 terminal No.2 and the body
ground.

(a)

Confirm the open circuit between the anti-theft horn harness
connector SO39 terminal No.2 and the body ground. repair
is completed.

Is the anti-theft indicator working correctly?

Yes

System normal

No

Step 3

Measure the alarm horn harness SO39 terminal No.1 voltage.

2

1

Anti-theft Horn Harness 
Connector S039 

FE11-5907b

(a)

Connect the anti-theft horn wiring harness connector, enter
the anti-theft alarm system and trigger the anti-theft system.

(b)

Measure anti-theft horn harness connector SO39 terminal
No.1 voltage.
Standard Voltage: 11-14 V

Is the voltage specified value?

No

Go to step 5

Yes

Step 4

Replace the anti-theft horn.

(a)

Replace the anti-theft horn. Refer to 

11.10.8.3

 

Anti-theft Horn

Replacement

.

Is the horn working properly?

11-386

Remote Anti-theft System

Body Electric

Step 5

Measure the BCM harness connector IP27 terminal No.2 voltage.

1

2

3

4

5

6

7

8

Body Control Module 3 Harness 
Connector IP27

FE11-5908b

(a)

Connect the anti-theft horn wiring harness connector, enter
the anti-theft alarm system and trigger the anti-theft system.
Standard Voltage: 11-14 V

Is the voltage specified value?

No

Go to step 7

Yes

Step 6

Repair the open circuit between the BCM harness connector IP27 and the anti-theft horn wiring harness
connector SO39.

Anti-theft Horn Harness Connector S039 

Body Control Module 3 Harness Connector IP27

FE11-5909b

(a)

Confirm the open circuit between the BCM harness
connector IP27 and the anti-theft horn wiring harness
connector SO39 repair is completed.

Is the horn working properly?

Yes

System normal

No

Step 7

Replace the BCM.

(a)

Replace the BCM. Refer to 

11.10.8.1

 

BCM Replacement

.

Confirm the repair completed.

Next

Step 8

System normal.

Body Electric

Remote Anti-theft System

11-387

11.10.8 Removal and Installation
11.10.8.1 BCM Replacement

Removal Procedure

Warning!

Refer to "Battery Disconnect Warning" in "Warnings and
Notices".

FE11-0549b

1.

Disconnect  the  battery  negative  cable.  Refer  to

2.11.8.1

 

Battery Disconnection

.

2.

Remove the instrument panel left outer panel.

FE11-0550b

3.

Remove  the  instrument  panel  steering  wheel  left  side
panel.

11-388

Remote Anti-theft System

Body Electric