No Transponder Modulation Or No Transponder
Table of contents
B3055 GMC Possible Causes
- Reprogram Theft Deterrent System Components
- Faulty Key
- Faulty Theft Deterrent Control Module
How do I fix code B3055 GMC?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the B3055 GMC code
The cost of diagnosing the B3055 GMC code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
B3055 GMC Description
When an ignition key is inserted into the ignition lock cylinder, the transponder embedded in the head of the key is energized by the exciter coils surrounding the ignition lock cylinder. The energized transponder transmits a signal that contains its unique value, which is received by the Theft Deterrent Control Module. The theft deterrent control module then compares this value to a value stored in memory (learned key code). If the value is correct the theft deterrent control module sends the enable password via the serial data circuit to the Powertrain Control Module (PCM). The Diagnostic Trouble Code (DTC) sets when the theft deterrent control module is unable to measure the ignition key transponder value. This may be due to a damaged or missing transponder, a non Passkey III (PK3) key, or a damaged exciter.