Powertrain, generic · Vehicle speed, idle control and auxiliary inputs

P0569 Cruise Control Coast Signal

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

Cruise control buttons are almost always a resistor ladder on one or two signal lines, each button giving its own voltage; the module reading it (GM and Saab from about 2010: the body module; FCA: steering column module or PCM) sends the button state to the engine module over CAN. CARB names cruise control as the example of an emission-neutral diagnosis – it is simply switched off – so GM lists all these codes as type C and Ford as non-MIL: no warning lamp, the engine runs normally. P0569 concerns a separate coast button (minus, lower the speed) – stuck or implausible. No manufacturer document available to us uses this code. GM combines set and coast and has no coast code of its own.

Likely causes

Coast (minus) button stuck or faulty
Moisture or wear in the steering wheel switch
Contact resistance in clockspring or steering wheel connector
Body module or cruise module

Symptoms

  • Speed cannot be lowered with cruise control
  • Cruise control locked out
  • No check engine light, engine runs normally

Repair estimate

DifficultyMediumDIY possible
Parts and labour€40–400
Time0.5–2 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

cruise control switchclockspringswitch wiringbody control module

Related codes

P0568P0570P0567P0564

References: law.cornell.edu, saabwisonline.com.