Inspection Procedure

WARNING: This page is about a different car, the 2004 Toyota MR2. However, it is still accessible from the selected car via links, so may be relevant.

Check security indicator light.
PREPARATION:

Remove heater control assembly (A/C SW)

(REMOVAL )

CHECK:

Connect the positive (+) lead to terminal 6 and the negative (-) lead to terminal 4 of heater control connector

OK:
1. Security indicator light comes on.
Fig 1: Checking Security Indicator Light
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. NG : Replace heater control assembly.
2. OK : Go to Next Step
Check harness and connector between ECM and security indicator light, and security indicator light and body ground (See PROCEDURE ).
1. NG : Repair or replace harness or connector.
2. OK : Check and replace ECM ^*1 .
^* 1: When there is a malfunction that the engine immobiliser system cannot be set, proceed to the next numbered circuit inspection shown in problem symptoms table (See PROBLEM SYMPTOMS TABLE ).