Engine Immobiliser System (w/ Smart Key System)

THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM (w/ Smart Key System): B2784: Antenna Coil Open / Short

DTC B2784 - Antenna Coil Open / Short

DESCRIPTION

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





INSPECTION PROCEDURE
NOTICE: If the certification ECU (smart key ECU assembly) is replaced, register the key Engine Immobiliser System (W/ Smart Key System).

PROCEDURE

1. CHECK DTC OUTPUT
(a) Clear the DTCs Engine Immobilizer System (w/ Smart Key System).
(b) Recheck for DTCs Engine Immobilizer System (w/ Smart Key System).
OK:
DTC B2784 is not output.

NG -- REPLACE ENGINE SWITCH
OK -- USE SIMULATION METHOD TO CHECK
2. REPLACE ENGINE SWITCH
(a) Replace the engine switch Removal.
NEXT -- Continue to next step.

3. CHECK DTC OUTPUT
(a) Clear the DTCs Engine Immobilizer System (w/ Smart Key System).
(b) Recheck for DTCs Engine Immobilizer System (w/ Smart Key System).
OK:
DTC B2784 is not output.

NG -- REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
OK -- END (ENGINE SWITCH WAS DEFECTIVE)