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P1857 and P1747 OBD2 Fault Codes Explained for 2001 Audi A6

Model: 2001 A6 Fault Code: P1747 Posted: 2021-02-08 08:07

I'm experiencing two OBD2 fault codes on my 2001 Audi A6: P1857 and P1740. Can someone explain what these codes mean and how they affect the vehicle's performance? P1857 - Load Signal Error Message from Engine Control Unit P1747 - Transmission Control Unit Relay Open/Short to Ground I've checked online resources but would like a clear, accurate explanation tailored to my 2001 Audi A6 model.

Related fault codes

P1747P1857

Comments (2)

Anonymous 2021-04-04 15:50

P1857 refers to a Load Signal Error Message from the Engine Control Unit. This indicates that the engine control system is detecting an abnormal signal related to load sensing, which may affect fuel delivery and engine performance. For more details, see: https://www.obd-codes.com/trouble_codes/audi/p1857

Anonymous 2021-04-04 15:53

P1747 indicates a fault in the Transmission Control Unit Relay, specifically an open or short circuit to ground. This could lead to transmission malfunction or failure to engage gears properly. For more information, refer to: https://www.obd-codes.com/trouble_codes/audi/p1747