[SOLVED] Dodge P0579 Code: Quick Fix For Speed Control Switch Performance

The OBD code P0579 for Dodge indicates a fault in the cruise control function switch circuit.

Symptoms include the engine light being on, and the cruise control system not working.

This is usually caused by a faulty cruise control function switch or issues with the switch harness.

It is not a serious issue but can affect driving comfort.

To fix, inspect the wiring harness and connectors for any damage or poor connections.

Repair Importance Level	3.33 (Out of 10)
Estimated Repair Time	Approximately 1.0 hour
Repair Difficulty Level	6.67 (Out of 10)

Symptoms of the Dodge p0579 OBD Code

The Dodge fault code P0579 relates to a potential issue with the cruise control system.

Symptoms: Engine Light ON.
Cruise control system inoperative.

Causes of the Dodge p0579 OBD Code

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P0579 in Dodge indicates an issue with the cruise control system’s speed control switch circuit.

P0579 can be caused by a faulty Cruise Control Function Switch.
A Cruise Control Function Switch harness that is open or shorted.
A Cruise Control Function Switch circuit with poor electrical connection.

Fixing Dodge Error Code p0579 Step By Step

To resolve Dodge fault code P0579, inspect and repair the brake switch circuit as needed.

To fix the Dodge OBDII code P0579, start by reviewing the possible causes mentioned above.
Visually examine the brake switch A circuit wiring harness and connectors for any damage.
Check the connector pins for signs of being broken, bent, pushed out, or corroded.
Repair or replace any damaged components found during the inspection.
Clear the fault codes from the vehicle’s computer using a scan tool.
Test drive the vehicle to ensure the code does not return.
If the code persists, consider replacing the brake light switch.

Cost Of Fixing Dodge p0579 Fault Code

The repair for Dodge fault code P0579 may involve replacing the cruise control multifunction input circuit.

The cost to diagnose and fix the Dodge OBD code P0579 typically ranges from $75 to $150 per hour for labor rates.

With an estimated repair time of 1. 0 hour, the total cost could be around $75 to $150, depending on shop rates and the complexity of the issue.

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Details of the Dodge p0579 OBD Code

Dodge fault code P0579 relates to a cruise control system issue.

Dodge OBD code P0579 means Cruise Control MultiFunction Input A Circuit Range/Performance.

This code is triggered when the Powertrain Control Module (PCM) detects a discrepancy in the input signal from the cruise control multifunction switch.

The cruise control multifunction switch is typically located on the steering wheel and sends signals to the PCM to control the cruise control system’s operation.

When the PCM detects that the input signal from the switch is out of range or not performing as expected, it will trigger code P0579.

Mechanic’s Tech Notes

For Dodge code P0579, check brake switch circuit high voltage issues.

To diagnose and fix OBDII code P0579 in a Dodge, start by checking the transmission control module (TCM) power and ground using a multimeter.

Verify TCM communication over the Controller Area Network (CAN) network with a scan tool.

If the TCM does not respond, reprogramming or reflashing may be necessary.

Additionally, visually inspect the wiring harness and connectors for any damage.

Check connector pins for signs of being broken, bent, pushed out, or corroded.

Address any issues found during the inspection to resolve the P0579 fault code.

FAQ

1. What does OBD code P0579 mean in a Dodge vehicle?

OBD code P0579 in a Dodge means an issue with the cruise control system switch circuit. Check for faulty switch, wiring, or poor connections.

2. What are the common symptoms associated with OBD code P0579 in a Dodge vehicle?

Common symptoms of OBD code P0579 in a Dodge vehicle include Engine Light ON, inoperative Cruise control system. Causes may be a faulty Cruise Control Function Switch. Fix: Inspect wiring and connectors.

3. How can I diagnose and repair OBD code P0579 in my Dodge vehicle?

Diagnose and repair OBD code P0579 in your Dodge by checking the Cruise Control Function Switch, harness, and connections for faults. Repair as needed.

Wrap Up

If your Dodge is displaying OBD code P0579, you may experience issues with the cruise control system not functioning properly.

This code typically indicates a problem with the cruise control multifunction input A circuit, which could be caused by a faulty cruise control switch, damaged wiring, or poor electrical connections.

To address Dodge OBD code P0579, start by inspecting the cruise control switch and its wiring harness for any visible damage.

Test the electrical connectors for proper connectivity and corrosion.

Replace the cruise control switch if necessary and ensure all wiring connections are secure to resolve the issue.