B3577
Suspension Control Select Switch Contact Malfunction
B3577 is an OBD-II diagnostic trouble code meaning: Suspension Control Select Switch Contact Malfunction. Common causes: oxidation of switch contacts, wiring harness damage. Estimated repair cost: $56–167.
Symptoms
- Inability to switch suspension modes
- Spontaneous mode switching
- Suspension warning light comes on
Causes
- Oxidation of switch contacts
- Wiring harness damage
- Mechanical wear on the switch
- Malfunction of the suspension control unit
How to Fix
- Check the condition of the switch contacts
- Inspect the wiring harness for damage
- Test the switch with a multimeter
- Replace switch or wiring harness if necessary
- Update suspension control unit software
Related codes
Error B3577 by Vehicle Brand
FAQ
What does the B3577 code mean?
B3577 is an OBD-II diagnostic trouble code that indicates: Suspension Control Select Switch Contact Malfunction
What causes a B3577 error code?
The most common causes of B3577 include: Oxidation of switch contacts; Wiring harness damage; Mechanical wear on the switch; Malfunction of the suspension control unit.
How do I fix a B3577 diagnostic trouble code?
To fix B3577: Check the condition of the switch contacts. Inspect the wiring harness for damage. Test the switch with a multimeter. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B3577?
Limited driving only, diagnose soon
How much does it cost to fix B3577?
The estimated repair cost for B3577 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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