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Home >> Toyota >> 2001 >> Sienna CE >> Repair and Diagnosis >> External Pages >> Different car >> Section 417 (Theft Deterrent System - Diagnosis) >> Problem Symptoms Table

Problem Symptoms Table

WARNING: This page is about a different car, the 2004 Lexus ES 330. However, it is still accessible from the selected car via links, so may be relevant.

Proceed to the information shown in the matrix chart below for each malfunction symptom and troubleshooting for each circuit.

HINT:

Troubleshooting of the theft deterrent system is based on the premise that the door lock control system is operating normally. Accordingly, before troubleshooting the theft deterrent system, first make certain that the door lock control system is operating normally.

PROBLEM SYMPTOMS TABLE - THEFT DETERRENT SYSTEM

Symptom Suspected area
Theft deterrent system cannot be set.
  1. Indicator light circuit
  2. ECU power source circuit
  3. Key unlock warning switch circuit
  4. Luggage compartment door key lock and unlock switch circuit
  5. Engine hood courtesy switch circuit
  6. Door lock control system
Security indicator light does not blink when system is set.
  1. Security indicator light circuit
When the system is set (The system does not operate when the engine hood is opened).
  1. Engine hood courtesy switch circuit
When the system is set (It is not canceled when the ignition key is turned to ACC or ON position).
  1. Ignition switch circuit
When the system is set (It is still operating when the luggage compartment door is opened with the key).
  1. Luggage compartment door key lock and unlock switch circuit
While the system is in warning operation (Horns does not sound).
  1. Horn circuit
Even when the system is not set (Horn sounds)
  1. Horn circuit
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