DTC P0731 BMW

Incorrect First Gear Ratio

Incorrect First Gear Ratio

Description

Engine started, vehicle operating with 1st gear commanded on, and the DME detected an incorrect 1st gear ratio during the test.

Cause and Solution

1st Gear solenoid harness connector not properly seated
1st Gear solenoid signal shorted to ground, or open
1st Gear solenoid wiring harness connector is damaged
1st Gear solenoid is damaged or not properly installed
ATF level is low

Video Guide

Duration: PT4M6S | Uploaded: 2020-06-20

Diagnostic Info

  • DTC Code: P0731
  • Brand: BMW
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