Error code
OBD2 P0594
OBD2P0594
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Cruise Control Servo Control Circuit/Open.
Severity
moderateCan drive but may experience cruise control malfunction or failure.
Summary
P0594 indicates an open circuit in the cruise control system's actuator control, which is part of the cruise control servo.
Common Causes
- Wiring issues related to the cruise control actuator
Fixes
- Inspect and repair wiring issues related to the cruise control actuator.
FAQ
How can I diagnose P0594?
Diagnosing P0594 typically involves checking for open circuits or damaged wires in the cruise control system's actuator.
Is there a specific tool recommended for diagnosing this code?
A multimeter and an OBD-II scanner can be useful tools for diagnosing P0594. Some recommend using Torque Pro for more detailed diagnostics.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More OBD2 codes
- P0500Vehicle Speed Sensor 'A'
- P0501Vehicle Speed Sensor 'A' Range/Performance
- P0502Vehicle Speed Sensor 'A' Circuit Low Input
- P0503Vehicle Speed Sensor 'A' Intermittent/Erratic/High
- P0504Brake Switch 'A'/'B' Correlation
- P0505Idle Air Control System
- P0506Idle Air Control System RPM Lower Than Expected
- P0507Idle Air Control System RPM Higher Than Expected
- P0508Idle Air Control System Circuit Low
- P0509Idle Air Control System Circuit High
- P0510Closed Throttle Position Switch
- P0511Idle Air Control Circuit