OBD-II code · Powertrain (generic, extended)
P24F1 Control Module Wake-up Circuit High
The wake-up input reads above the expected range — typically a short to battery voltage. The module sees a permanent wake-up request, never enters sleep mode and drains the battery while parked.
Is it safe to drive with P24F1?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyWake-up wire shorted to battery voltage
- Less likelyConnector pins corroded - high contact resistance
- Less likelySupply wire pinched against B+ source
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.4–1.5 h
- Emissions test
- Usually unaffected
- Parts involved
- Wake Up Circuit, Control Module
Related codes
- P24EFControl Module Wake-up Circuit/Open
- P24F0Control Module Wake-up Circuit Low
- P24EENH3 Sensor Processor Performance
- P24F2EGR Temperature/Charge Air Cooler Temperature Correlation
- P24F3Reductant Tank Temperature/Fuel Temperature Correlation
- P24F4NOx Sensor Delayed Response - High to Low Bank 1 Sensor 1
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.