What does code P3100 mean?

Q: What does code P3100 mean?

High voltage powertrain control module failure. P3100 on Audi vehicles indicates that the powertrain control module (PCM) has detected an internal high-voltage failure, typically within its own power supply or output driver circuitry. The module sets this code when the voltage on a monitored internal circuit exceeds the design threshold, which can disrupt engine management and communication with other modules.

DTC codes / Audi codes / P3100

P3100 · AudiHigh voltage powertrain control module failure

P3100 on Audi vehicles indicates that the powertrain control module (PCM) has detected an internal high-voltage failure, typically within its own power supply or output driver circuitry. The module sets this code when the voltage on a monitored internal circuit exceeds the design threshold, which can disrupt engine management and communication with other modules.

SystemPowertrain

Code typeAudi specific

SeverityHigh

Fix difficultyProfessional

AreaFuel and air metering

Guidance is general and written for Audi vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.