Vehicle Interior

Problem Symptoms Table

~1min read
PROBLEM SYMPTOMS TABLE

HINT:

  • Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
  • Inspect the fuses and relays related to this system before inspecting the suspected areas below.
Engine Immobiliser System

Symptom

Suspected Area

See page

Engine does not start

ECU power source circuit

SFI system

Transponder key ECU assembly

Security indicator light malfunction

Security indicator light circuit

Transponder key ECU assembly

Unable to register key

Key

-

Transponder key ECU assembly

Test yourself

A quick Toyota 4Runner quiz: every answer comes with an explanation and a link to the manual page.