Error code
OBD2 P0593
OBD2P0593
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Cruise Control Multi-Function Input 'B' Circuit High.
Severity
moderateCan drive, but cruise control may not function properly.
Summary
P0593 indicates an issue with the cruise control system's multi-function switch input circuit 'B' being stuck in a high state, likely due to wiring or mechanical issues.
Common Causes
- Wiring short to positive
- Faulty multi-function switch
- Mechanical fault
Fixes
FAQ
What does P0593 mean?
P0593 indicates a problem with the cruise control system's multi-function switch input circuit 'B' being stuck in a high state.
How do I fix P0593?
Fixing P0593 typically involves checking and repairing wiring issues or replacing the faulty multi-function switch. Consult with a professional mechanic for an accurate diagnosis and repair.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More OBD2 codes
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- P0503Vehicle Speed Sensor 'A' Intermittent/Erratic/High
- P0504Brake Switch 'A'/'B' Correlation
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- P0507Idle Air Control System RPM Higher Than Expected
- P0508Idle Air Control System Circuit Low
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