OBD-II code · Powertrain (generic, extended)
P263A MIL Control Circuit Low
Voltage on the malfunction indicator lamp control line is below the expected window. Usually a short to ground or a shorted bulb driver.
Is it safe to drive with P263A?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyControl wire shorted to ground
- PossibleBulb driver internally shorted
- Less likelyConnector pins corroded - high contact resistance
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.5–2 h
- Emissions test
- Usually unaffected
- Parts involved
- Mil Lamp, Instrument Cluster, Wiring Harness
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.