DTC P1056 BMW

Valvetronic (VVT) Supply Voltage Control Motor Low Input (Bank 1)

Valvetronic (VVT) Supply Voltage Control Motor Low Input (Bank 1)

Description

Key on for 200ms, the DME detected that the supply voltage was too low (less than 5 volts).

Cause and Solution

VVT fuse is faulty
Defective load reduction relay
Plug Kb-B open circuit in power supply circuit

Video Guide

Duration: PT4M3S | Uploaded: 2020-06-20

Diagnostic Info

  • DTC Code: P1056
  • Brand: BMW
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