P0579 on 2007-2017 Jeep Wrangler (Sport, Sahara, Rubicon, Unlimited) — Cruise Control Multi-Function Input "A" Circuit Range/Performance
1 vehicles · 1 makes · $200-$600 repair
Most Reported On
P0579 is an OBD-II diagnostic trouble code meaning “Cruise Control Multi-Function Input "A" Circuit Range/Performance.” The cruise control multi-function input 'A' signal is present but out of the expected range or implausible — it does not match valid switch-state values. A range/performance fault. This code is most commonly reported on 2007-2017 Jeep Wrangler (Sport, Sahara, Rubicon, Unlimited), with repair costs ranging from $200 to $600.
Common Causes
Typical Repair Cost
Based on 1 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose P0579, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
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- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.
- Enhanced diagnostics (ABS, SRS, transmission)
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- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X OBD-II Scanner
by LAUNCH
A professional-grade handheld scanner that reads all four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
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- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
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FAQ
What does P0579 mean?
P0579 stands for "Cruise Control Multi-Function Input "A" Circuit Range/Performance." The cruise control multi-function input 'A' signal is present but out of the expected range or implausible — it does not match valid switch-state values. A range/performance fault.
What are the most common causes of P0579?
The most common causes of P0579 are: Faulty cruise/multi-function switch, Wiring resistance / poor connection, Corroded connector, Faulty clockspring, Faulty PCM input. The specific cause varies by vehicle.
How much does it cost to fix P0579?
Repair costs for P0579 range from $200 to $600, depending on the vehicle and root cause.
Which vehicles are affected by P0579?
Au7o has documented P0579 across 1 vehicle models from 1 manufacturers: Jeep.
Sources (4)
- RecallNHTSA Safety Recall S40 / 16V-288 — Airbag Clockspring (2011-2016 RHD Wrangler)
- TSBClockspring Replacement (X68 Warranty Extension) — 2011-2016 Wrangler
- articleJeep Wrangler Clockspring / Airbag Problems Investigated — CarComplaints.com
- ForumClockspring - Warranty Letter: Extended for 15yrs — Jeep Wrangler Forum
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.