Code result
P05F9
Stop-Start Status Signal Circuit
Moderate severity
What it means
A general circuit fault on the stop-start status signal - the bus or hardwire that tells other modules whether the engine is auto-stopped or running.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Open in signal line
highOne of the most commonly reported causes for this code — check this first.
Related help
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