OBD-II code · Powertrain (generic)
P0512 Starter Request Circuit
The starter request input - the signal that tells the ECU the driver wants to crank the engine - shows a circuit fault. Without it the engine cannot be started under software-managed start strategies (stop-start, push-button, immobiliser-coordinated start).
Is it safe to drive with P0512?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyOpen in switch or harness
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–1.2 h
- Emissions test
- Usually unaffected
- Parts involved
- Starter Request Input, Ignition Switch
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.