C1790 Air Suspension Left Rear Air Spring Shock Solenoid Output Circuit Failure

• OBD2 Code: C1790
• Description: Air suspension left rear air spring shock solenoid output circuit failure.
• Definition: This code indicates a malfunction in the electrical circuit responsible for controlling the solenoid of the left rear air spring shock in the vehicle’s air suspension system. The issue could be due to wiring problems, a faulty solenoid, or a related control module fault.

c1790 – Air Suspension Left Rear Air Spring Shock Solenoid Output Circuit Failure

Typical Severity: Critical

Common Causes

C1790 – Air Suspension Left Rear Air Spring Shock Solenoid Output Circuit Failure

Common Causes:

• Faulty air spring shock solenoid
• Wiring issues in the circuit
• Poor electrical connection
• Corrosion in the wiring or connectors

 

Common Misdiagnosis

OBD2 Code: C1790

Description: Air Suspension Left Rear Air Spring Shock Solenoid Output Circuit Failure

Common Misdiagnosis: Replacing the air spring or shock absorber without checking the solenoid circuit for electrical issues such as damaged wiring or poor connections.

 

Common Diagnostic Steps

• OBD2 Code: C1790
• Description: Air Suspension Left Rear Air Spring Shock Solenoid Output Circuit Failure
• Common Diagnostic Steps:
  • Inspect the air suspension solenoid for any visible damage or corrosion.
  • Check the wiring harness and connectors for signs of wear, damage, or disconnection.
  • Use a multimeter to test the continuity and resistance of the solenoid circuit.
  • Verify that there is power and ground at the solenoid connector using a test light or multimeter.
  • Examine related fuses and relays to ensure they are functioning properly.
  • If applicable, use an OBD2 scanner to clear the code and see if it returns after performing repairs.