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Home >> Chrysler >> 2003 >> Sebring LXi, 2D Convertible >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Vehicle Theft Security System >> Equipment Diagnosis >> Symptom Procedures >> INSPECTION PROCEDURE 1: Communication with Scan Tool MB991502 is impossible. >> Circuit Operation
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Circuit Operation

Immobilizer-ECU is energized when the ignition switch is turned "ON," and the MFI relay is turned on. The ECM < M/T > or PCM < A/T > transmits a signal from scan tool MB991502 to the immobilizer-ECU as it is. In the same way, a signal from the immobilizer-ECU is also transmitted to scan tool MB991502 as it is.

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