Powertrain
generic / SAE
P0585
Cruise Control Multi-Function Input A and B Correlation
Cruise control uses two redundant multiplexed inputs (A and B) for safety. The two inputs do not agree - one reports a button press the other does not, or both report incompatible levels at the same time.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number5 / 85
Possible causes
- Stalk module ageing - drift between A and B high
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 120–400 €
- Estimated time: 0.6–2 h
- Component: cruise control stalk
- Component: cruise input b wiring
- MIL / check engine light
Sources
References
sae:J2012