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Home >> Toyota >> 2004 >> Corolla LE, Standard >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Vehicle Intrusion Protection System - Diagnostics >> TOYOTA Vehicle Intrusion Protection System >> Problem Symptoms Table
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Problem Symptoms Table

Proceed to the reference page shown in the table below for each malfunction symptom and troubleshoot each circuit.

HINT:

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

PROBLEM SYMPTOMS TABLE - VEHICLE INTRUSION PROTECTION SYSTEM

Symptom Suspected Area
TVIP system cannot be set
  1. Indicator light circuit
  2. ECU power source circuit
  3. Key unlock warning switch circuit
  4. Door key lock and unlock switch circuit
  5. Door unlock detection switch circuit
  6. Door courtesy switch circuit
  7. TVIP ECU communication circuit
Indicator light does not blink when TVIP system is set.
  1. Indicator light circuit
TVIP system does not operate when front door is unlocked (when TVIP system is set).
  1. Door unlock detection switch circuit
TVIP system is not canceled when ignition key is turned to ON position (when TVIP system is set).
  1. Ignition switch circuit
  2. Key unlock warning switch circuit
TVIP system still operates when door is opened with key (when TVIP system is set).
  1. Door key lock and unlock switch circuit
  2. Door unlock detection switch circuit
Horns do not sound while TVIP system is in warning operation.
  1. Horn relay circuit
Headlights do not flash while TVIP system is in warning operation.
  1. Light control switch circuit
Hazard warning do not flash while TVIP system is in warning operation.
  1. Hazard warning switch circuit
Door is not locked while TVIP system is in warning operation.
  1. Door unlock detection switch circuit
TVIP system is still set even when rear door is open
  1. Door courtesy switch circuit
Horns sound even when TVIP system is not set.
  1. Horn relay circuit
Headlights stay on even when TVIP system is not set.
  1. Light control switch circuit
Hazard warning stays on even when TVIP system is not set.
  1. Hazard warning switch circuit
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