B2784

ENGINE IMMOBILISER: ENGINE IMMOBILISER SYSTEM: B2784: Antenna Coil Open / Short
B2784 - Antenna Coil Open / Short

DESCRIPTION

This DTC is output when there is an open or short malfunction in the transponder key coil (built into engine switch).





INSPECTION PROCEDURE

PROCEDURE

1. CHECK FOR DTC

(a) Clear the DTC Engine Immobilizer System.

(b) Recheck for DTC Engine Immobilizer System.

OK:

DTC B2784 is not output.

NG -- REPLACE ENGINE SWITCH

OK -- USE SIMULATION METHOD TO CHECK How To Proceed With Troubleshooting

2. REPLACE ENGINE SWITCH

(a) Temporarily replace the engine switch with a new one Removal.

NEXT -- Continue to next step.

3. CHECK FOR DTC

(a) Recheck for DTC Engine Immobilizer System.

OK:

DTC B2784 is not output.

NG -- REPLACE CERTIFICATION ECU

OK -- END (ENGINE SWITCH IS DEFECTIVE)