Trouble Shooting

NOTE: Before trouble shooting engine immobilizer system, follow TESTING PROCEDURE under SELF-DIAGNOSTIC SYSTEM.

TROUBLE SHOOTING SYMPTOMS

Symptom

Inspect

Engine Immobilizer Is Not Set & Engine Starts With Ignition Key Code Other Than Registered Ignition Key Code

⁽¹⁾ ECM

Engine Does Not Start

⁽²⁾ Ignition Key, ⁽¹⁾ Wiring Harness, ⁽³⁾ Transponder Key Coil, ⁽⁴⁾ Transponder Key Amplifier, ⁽¹⁾ ECM

SECURITY Indicator Light Is Always On

⁽⁵⁾SECURITY Indicator Light, ⁽¹⁾ Wiring Harness, ⁽¹⁾ ECM

SECURITY Indicator Light Is Always On Although Ignition Key Code Has Been Registered In Automatic Registration Mode

⁽¹⁾ Wiring Harness, ⁽³⁾ Transponder Key Coil, ⁽⁴⁾ Transponder Key Amplifier, ⁽¹⁾ ECM

SECURITY Indicator Light Is Off When Engine Immobilizer DTC Is Output

⁽¹⁾ Wiring Harness, ⁽³⁾ Transponder Key Coil, ⁽⁴⁾ Transponder Key Amplifier, ⁽¹⁾ ECM

SECURITY Indicator Light Is Off When Engine Immobilizer DTC Is Not Output

⁽¹⁾ Wiring Harness, ⁽¹⁾ ECM

SECURITY Indicator Light Is Flashing Abnormally

⁽¹⁾ Wiring Harness, ⁽¹⁾ ECM

⁽¹⁾	Check for opens and shorts in wiring harness and electrical connectors for engine immobilizer system and perform pin voltage tests at Engine Control Module (ECM). See WIRING DIAGRAMS and PIN VOLTAGE TESTS . ECM is located behind glove box. See Figure. Repair or replace components as necessary.

⁽²⁾	Ensure ignition key which did not start the engine has been registered and that it is possible to start the engine with other already registered ignition keys. See PROGRAMMING for information on ignition key registration.

⁽³⁾	Check transponder key coil. See TRANSPONDER KEY COIL under COMPONENT TESTS.

⁽⁴⁾	Transponder key amplifier may be defective, or wiring circuit between ECM and transponder key amplifier may be defective. Transponder key amplifier is located near upper steering column bracket. See Figure.

⁽⁵⁾	Check that automatic registration mode is completed. If still in automatic registration mode, SECURITY indicator light may remain on. See IGNITION KEY REGISTRATION under PROGRAMMING for information on automatic registration mode.