Theft Deterrent / Keyless Entry

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

Unable to register the key.

Front door courtesy light switch assembly (for driver side)

Wire harness or connector

-

Transponder key ECU assembly

-

Engine does not start.

Key

ECU power source circuit

SFI system (for 2GR-FE)

SFI system (for 1AR-FE)

Transponder key ECU assembly

-

Security indicator light is always on.

Transponder key ECU assembly

Wire harness or connector

-

Accessory meter assembly

-

Security indicator light is off.

Transponder key ECU assembly

Wire harness or connector

-

Accessory meter assembly

-

Security indicator light is blinking abnormally.

Transponder key ECU assembly

-

Engine immobiliser system DTCs are not output.

Wire harness or connector

Transponder key ECU assembly

-

Test yourself

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