C1870
Air Suspension Gate Solenoid Output Circuit Open
C1870 is an OBD-II diagnostic trouble code meaning: Air Suspension Gate Solenoid Output Circuit Open. Common causes: open or short circuit in wiring harness, solenoid valve malfunction. Estimated repair cost: $56–278.
Symptoms
- Incorrect operation of the air suspension
- The car sags to one side
- Suspension fault indicator is on
- Suspension system does not respond to adjustments
Causes
- Open or short circuit in wiring harness
- Solenoid valve malfunction
- Problems with connectors or contacts
- Malfunction of the air suspension control unit
- Corrosion or oxidation of contacts
How to Fix
- Conduct a visual inspection of the wiring harness and connectors
- Check the continuity of the circuit with a multimeter
- Test solenoid resistance
- Check power supply and control signals from the control unit
- Replace damaged wires or solenoid
- Clean or replace oxidized contacts
- If necessary, replace the control unit
Related codes
FAQ
What does the C1870 code mean?
C1870 is an OBD-II diagnostic trouble code that indicates: Air Suspension Gate Solenoid Output Circuit Open
What causes a C1870 error code?
The most common causes of C1870 include: Open or short circuit in wiring harness; Solenoid valve malfunction; Problems with connectors or contacts; Malfunction of the air suspension control unit.
How do I fix a C1870 diagnostic trouble code?
To fix C1870: Conduct a visual inspection of the wiring harness and connectors. Check the continuity of the circuit with a multimeter. Test solenoid resistance. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C1870?
Limited driving only, diagnose soon
How much does it cost to fix C1870?
The estimated repair cost for C1870 is $56–278. Actual cost depends on your vehicle, location, and labor rates.
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