B2784

THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM: B2784: Antenna Coil Open / Short
B2784 - Antenna Coil Open / Short

DESCRIPTION

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





INSPECTION PROCEDURE

PROCEDURE

1. CLEAR DTC

(a) Clear the DTCs Engine Immobiliser System.

NEXT -- Continue to next step.

2. CHECK FOR DTC

(a) Check for DTCs Engine Immobiliser System.

OK:

DTC B2784 is not output.

NG -- REPLACE ENGINE SWITCH

OK -- USE SIMULATION METHOD TO CHECK Electronic Circuit Inspection Procedure

3. REPLACE ENGINE SWITCH

(a) Temporarily replace the engine switch with a new one Start / Stop Switch.

NEXT -- Continue to next step.

4. CLEAR DTC

(a) Clear the DTCs Engine Immobiliser System.

NEXT -- Continue to next step.

5. CHECK FOR DTC

(a) Recheck for DTCs Engine Immobiliser System.

OK:

DTC B2784 is not output.

NG -- REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) Removal

OK -- END (ENGINE SWITCH IS DEFECTIVE)