Engine Immobilizer System: Inspection

INSPECTION TRANSPONDER KEY COIL CONTINUITY
Check that there is continuity between terminal 1 and 2. If continuity is not as specified, replace the coil.

Fig 1: Checking Continuity Between Terminal
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INSPECT TRANSPONDER KEY ECU CIRCUIT

Connect the wire harness side connector to the ECU and inspect wire harness side connector from the back side, as shown in the table.

TESTER CONNECTION SPECIFIED CONDITION

Condition	Tester Connection	Specified Condition
Constant	6 - 12	Battery Positive Voltage

If circuit is as specified, try replacing the ECU with a new one. If the circuit is not as specified, inspect the circuit connected to other parts.

Fig 2: Inspecting Wire Harness Side Connector From Back Side