What causes fault code P0575?

• Most likely: Faulty cruise control switch cluster (internal resistance error) • Likely: Failing clock spring (spiral cable) behind the steering wheel • Possible: Wiring harness damage or oxidized connectors in the steering column • Rare: Internal ECM/BCM fault or software corruption

How do you fix fault code P0575?

STEP 1: Check fuses related to cruise control and brake lights. Inspect connectors at the steering column for tightness. STEP 2: Use a diagnostic scanner to monitor Live Data. Check if the ECM registers switch states. Each button should produce a distinct voltage (e.g., SET=1.5V, RES=2.5V, CANCEL=3.5V). STEP 3: Perform a continuity and resistance test on the clock spring (spiral cable). Rotate the steering wheel during testing; resistance should remain stable near 0 Ohms. Replace clock spring if values fluctuate. STEP 4: If wiring and clock spring are verified, replace the steering wheel switch assembly.

Powertrain (Engine & Gearbox)Standard EOBD

P0575 - Cruise Control Input Circuit

Q: What are the symptoms of fault code P0575?

• Cruise control cannot be engaged • Cruise control indicator light flashes or fails to illuminate • Check Engine Light (MIL) may be illuminated on certain models • Intermittent deactivation of cruise control while driving

Last updated:1 February 2026

Related:Clock Spring, Rattknappar, Engine Control Unit (ECU), Body Control Module (BCM), Bromsljuskontakt

System

Powertrain (Engine & Gearbox)

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Vehicle Speed Sensor 'A' Range/Performance

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P0503

Vehicle Speed Sensor (VSS) Intermittent/Erratic/High

Technical Description

P0575 is stored when the Engine Control Module (ECM) detects an electrical malfunction or signal correlation error within the cruise control input circuit. The ECM monitors the voltage levels from the cruise control switches, typically arranged in a resistor ladder network. When a button is pressed, the ECM expects a specific voltage drop; if the signal is inconsistent or outside calibrated parameters (e.g., due to an open circuit or short to ground), the system disables cruise control functionality for safety reasons.

Possible Causes

Faulty cruise control switch cluster (internal resistance error)

Failing clock spring (spiral cable) behind the steering wheel

Wiring harness damage or oxidized connectors in the steering column

Internal ECM/BCM fault or software corruption

Symptoms

Cruise control cannot be engaged

Cruise control indicator light flashes or fails to illuminate

Check Engine Light (MIL) may be illuminated on certain models

Intermittent deactivation of cruise control while driving

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P0575 - Cruise Control Input Circuit

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P0575 - Cruise Control Input Circuit

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