Fault Family System: Powertrain (P-Codes) 24 SAE Codes

Cruise Control Input Switch Circuit

Diagnostic & Technical Explanation

Code P0564 (Cruise Control Multi-Function Input A Circuit) sets when the ECM detects an implausible voltage, a stuck condition, or a correlation mismatch from one of the driver-operated cruise control switches (on/off/set/resume/coast/accelerate/cancel/distance, or the multi-function input pod) or determines the system cannot safely engage because vehicle speed is too high. Causes are worn or contaminated switch contacts inside the steering-wheel pod, a chafed clockspring/wiring connection, or a multi-function resistor-ladder switch drifting out of its voltage window.

These 24 diagnostic trouble codes share one detection mechanism and one repair path, which is why MechanicDB groups them into a single authored fault family rather than repeating the same explanation 24 times.

Codes in this family (24)

Code	Definition	Repair coverage
P0564	Cruise Control Multi-Function Input A Circuit	4 ranked fixes
P0565	Cruise Control On Signal	4 ranked fixes
P0566	Cruise Control Off Signal	4 ranked fixes
P0567	Cruise Control Resume Signal	4 ranked fixes
P0568	Cruise Control Set Signal	4 ranked fixes
P0569	Cruise Control Coast Signal	4 ranked fixes
P056A	Cruise Control Increase Distance Signal	4 ranked fixes
P056B	Cruise Control Decrease Distance Signal	4 ranked fixes
P056C	Cruise Control Cancel Signal	4 ranked fixes
P0570	Cruise Control Accelerate Signal	4 ranked fixes
P0574	Cruise Control System - Vehicle Speed Too High	4 ranked fixes
P0575	Cruise Control Input Circuit	4 ranked fixes
P0576	Cruise Control Input Circuit Low	4 ranked fixes
P0577	Cruise Control Input Circuit High	4 ranked fixes
P0578	Cruise Control Multi-Function Input A Circuit Stuck	4 ranked fixes
P0579	Cruise Control Multi-Function Input A Circuit Range/Performance	4 ranked fixes
P0580	Cruise Control Multi-Function Input A Circuit Low	4 ranked fixes
P0581	Cruise Control Multi-Function Input A Circuit High	4 ranked fixes
P0585	Cruise Control Multi-Function Input A/B Correlation	4 ranked fixes
P0589	Cruise Control Multi-Function Input B Circuit	4 ranked fixes
P0590	Cruise Control Multi-Function Input B Circuit Stuck	4 ranked fixes
P0591	Cruise Control Multi-Function Input B Circuit Range/Performance	4 ranked fixes
P0592	Cruise Control Multi-Function Input B Circuit Low	4 ranked fixes
P0593	Cruise Control Multi-Function Input B Circuit High	4 ranked fixes

What this page does not show

This page publishes the fault mechanism and the code index. The licensed dataset adds, for every one of the 15,886 codes, the full authored repair set (56,729 procedures in total) with the fields deliberately withheld here:

Procedures 2..n after the first-listed procedure
Aftermarket parts cost ranges in USD (est_parts_cost_min/max_usd)
Professional labor-hour estimates (est_labor_hours)
Step-by-step diagnostic and repair instructions
Replacement-part mappings and catalog lookups
6,637 manufacturer-specific OEM codes across 32 makes ($149 tier)

Need All 15,886 Codes as Data?

Pipe-delimited CSV, Apache Parquet and a relational SQLite database, with commercial application rights and instant download. Built for scan tools, shop software and research - not assembled one web page at a time.

License OEM Complete · $149 Standard (SAE only) · $49

$49 Standard: 9,249 SAE codes · $149 OEM Complete: all 15,886 codes, including 6,637 OEM codes across 32 makes · $149 Heavy Duty: 4,212 fault pairs (J1939) · one-time · compare tiers