DTC P3023 BMW

O2S Sensor Disturbed SPI Communication to WRAF-IC (Bank 2 Sensor 1)

O2S Sensor Disturbed SPI Communication to WRAF-IC (Bank 2 Sensor 1)

Description

Engine started and the fault entry trips after the criterion remains present for 2 seconds, battery voltage must be at least 11v, and there is a communications fault between the ECU and the CJ125 (SPI bus) chip.

Cause and Solution

Internal HW fault in control module

Video Guide

Duration: PT4M5S | Uploaded: 2020-06-20

Diagnostic Info

  • DTC Code: P3023
  • Brand: BMW
Back to Blog