B3055

No Transponder Modulation or No Transponder

Severity

🔴 High

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$56–167 (est.)

Symptoms

Engine won't start
The immobilizer indicator is flashing
The car does not respond to the key

Causes

Faulty transponder in the key
Damaged immobilizer antenna
Open or shorted wiring harness
Malfunction of the immobilizer control unit

How to Fix

Check the ignition key for damage
Diagnose the immobilizer antenna
Check the integrity of the wiring harness
Scan the immobilizer control unit for errors

Related codes

B3056 B3057 P0513