Problem Symptoms

WARNING: This page is about a different car, the 2002 Toyota MR2. However, it is still accessible from the selected car via links, so may be relevant.

Problem Symptoms

Symptom

Suspect Area

Immobilizer Is Not Set

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ECM

Engine Does Not Start

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⁽¹⁾ Key

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Wire Harness

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Transponder Key Amplifier

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ECM

Security Indicator Is Always On

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⁽²⁾, ⁽³⁾ Security Indicator Light

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Wire Harness

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ECM

Security Indicator Is Always On (although code has been registered in automatic registration mode, indicator is not OFF

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Wire Harness

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Transponder Key Amplifier

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ECM

Security Indicator Is OFF (when DTC of immobilizer is output)

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Wire Harness

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Transponder Key Amplifier

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ECM

Security Indicator Is OFF (when DTC of immobilizer is not output)

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Wire Harness

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ECM

Security Indicator Is Abnormally Blinking

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Wire Harness

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⁽³⁾ Security Indicator Light Circuit

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ECM

⁽¹⁾	Check that the key which did not start the engine has been registered and that it is possible to start with other already registered key codes.

⁽²⁾	Finish the automatic registration mode because the mode might still remain.

⁽³⁾	See SECURITY INDICATOR LIGHT CIRCUIT .