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2012 MERCEDES-BENZ ML
3.5L V6•AWD•AUTOMATIC•gas•M272
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Repairs0Labor492Torque2165Fluid8DTC1852Battery2Maintenance0Recalls0
P1750moderate severityPowertrain

Electronic Gear Selector Low Supply Voltage

on 2012 Mercedes-Benz ML 3.5L V6 · AWD

What this code means

The ECU detected that the electronic gear selector module has insufficient supply voltage. Low voltage prevents reliable gear selection communication.

Symptoms

  • Gear selector intermittent operation
  • Transmission warning light
  • Check Engine Light
  • Delayed gear engagement

Common causes

  • Corroded power supply connector to selector
  • Low battery voltage
  • Wiring resistance in power feed
  • Fuse fault
  • Ground connection issue

Diagnostic steps

  1. Test voltage at gear selector connector
  2. Check fuse condition
  3. Inspect power supply wiring
  4. Test battery and charging system
  5. Check ground connections

Repair notes

Repair the voltage supply to the electronic gear selector module.

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