B2784 OBD Code Definition:
B2784 Antenna Coil Open/Short
B2784 OBD Code Description:

Possible causes
– Faulty Transponder key amplifier
– Transponder key amplifier wire harness
– Faulty tTransponder key ECU assy
When is the obd code mean?
Antenna coil is open/short
B2784 OBD Code Description

The transponder key coil is built into the transponder key amplifier and receives a key code signal from the transponder chip in the key. This signal is amplified by the amplifier, then it is output to the transponder key ECU assembly.

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