Faulty or worn cruise control switch or steering wheel control pad with a stuck or dirty coast contact; Damaged, chafed or corroded wiring or connector in the coast switch circuit; Worn clock spring (spiral cable) in the steering column breaking the switch signal, on models where the switches pass through it; Short or open circuit to power or earth in the switch signal wire; Fault in the control unit that reads the switch signal (engine, body or cruise control module); Outdated or faulty control unit software where the manufacturer has issued a known fix.

P0569

Cruise Control Coast Signal.

Generic
Powertrain
Generic code
Low severity

How this code is built

P: SystemPowertrain
0: Defined bySAE, the same on every car
5: AreaVehicle speed, idle control and auxiliary inputs
69: FaultThe specific fault in that area

What it means

P0569 is the generic SAE J2012 code for a fault in the cruise control coast signal circuit. The control unit monitors the coast (decelerate) input from the cruise control switch or steering wheel controls and sets the code when the signal is out of range, stuck, or does not match what it expects. The exact wording and set conditions vary by manufacturer and model, so check the specific data for the vehicle.

Symptoms

Cruise control will not set, resume or hold speed
Cruise control switches off by itself or cuts out intermittently
Cruise or speed control warning light on the dashboard
Coast or decelerate button feels stuck or gives no response
Engine management light on with the code stored

Possible causes

Faulty or worn cruise control switch or steering wheel control pad with a stuck or dirty coast contactlikely
Damaged, chafed or corroded wiring or connector in the coast switch circuitlikely
Worn clock spring (spiral cable) in the steering column breaking the switch signal, on models where the switches pass through itpossible
Short or open circuit to power or earth in the switch signal wirepossible
Fault in the control unit that reads the switch signal (engine, body or cruise control module)rare
Outdated or faulty control unit software where the manufacturer has issued a known fixrare

How to diagnose

Read all stored and pending codes and record the freeze frame data; note any other cruise, brake switch or steering switch codes
Check whether the cruise control behaves differently when pressing each button, and look for sticky or worn buttons
Inspect the switch, connectors and visible wiring for damage, moisture, corrosion or chafing
Using a scan tool with live data, watch the coast switch status while pressing and releasing it, and check it changes cleanly
Check the wiring diagram for the model, then measure the signal circuit for voltage, earth and continuity, and for shorts to power or earth
Check the supply and earth to the switch and the control unit
Inspect the clock spring and steering column connections if the switch signal passes through them on this model
Check for technical service bulletins or software updates relevant to the vehicle before replacing a control unit

How to fix

Replace the faulty cruise control switch or steering wheel control assembly
Repair or replace damaged wiring and clean or renew corroded connectors
Replace the clock spring if testing shows it is breaking the signal
Repair the short or open circuit found in the signal wire
Update the control unit software only if a known fault in the calibration is confirmed, or replace the control unit if it is proven faulty after all else is ruled out

Can I keep driving?

Low severity

The car can normally be driven as usual, as only cruise control function is affected. Book it in at your convenience, but if the steering wheel controls or clock spring are involved, check that the airbag warning light is off.

Guide written by AI from the code's definition. Confirm with a diagnosis before replacing parts.