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B2784

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

DTC 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 Immobilizer System
NEXT -- Continue to next step.
2. CHECK FOR DTC
(a) Check for DTCs. Engine Immobilizer System
OK:
DTC B2784 is not output.
NG -- REPLACE ENGINE SWITCH
OK -- USE SIMULATION METHOD TO CHECK
3. REPLACE ENGINE SWITCH
(a) Temporarily replace the engine switch with a new one.
NEXT -- Continue to next step.
4. CLEAR DTC
(a) Clear the DTCs. Engine Immobilizer System
NEXT -- Continue to next step.
5. CHECK FOR DTC
(a) Recheck for DTCs. Engine Immobilizer System
OK:
DTC B2784 is not output.
NG -- REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
OK -- END (ENGINE SWITCH IS DEFECTIVE)