Powertrain
generic / SAE
P0635
Power Steering Control Circuit
A general circuit fault is detected on the power steering control output - typically the line that the ECU uses to request raised idle when steering load is high, or to enable an electric pump.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number6 / 35
Possible causes
- Open in control line high
Symptoms
- Check engine light on
- Possible limp mode or no-start
- Multiple follow-up faults across modules
- Reset/relearn may be needed after repair
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 80–350 €
- Estimated time: 0.5–1.8 h
- Component: power steering control signal
- MIL / check engine light
Sources
References
sae:J2012