P1750moderate severityPowertrain
Electronic Gear Selector Low Supply Voltage
on 2002 Mercedes-Benz SL 3.0L I6 · RWD
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
- Test voltage at gear selector connector
- Check fuse condition
- Inspect power supply wiring
- Test battery and charging system
- Check ground connections
Repair notes
Repair the voltage supply to the electronic gear selector module.
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