OBD-II code · Powertrain (generic, extended)
P26F2 Starter Relay B Stuck On
The second starter relay stays closed when commanded off. Starter motor B remains engaged after the engine is running, which can destroy the starter pinion or ring gear.
Is it safe to drive with P26F2?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyRelay contacts welded shut by inrush current
- PossibleECU output driver stuck on
- Less likelyCarbon or debris buildup preventing free movement
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–2 h
- Emissions test
- Usually unaffected
- Parts involved
- Starter Relay B, Starter Motor B
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.