Right Rear Actuator Circuit
Table of contents
C0590 GMC Possible Causes
- Faulty Right Rear Actuator
- Right Rear Actuator harness is open or shorted
- Right Rear Actuator circuit poor electrical connection
How do I fix code C0590 GMC?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Tech Notes
- – C0590 01: Right Rear Actuator Circuit Short to Battery
- – C0590 02: Right Rear Actuator Circuit Short to Ground
- – C0590 04: Right Rear Actuator Circuit Open
Cost of diagnosing the C0590 GMC code
The cost of diagnosing the C0590 GMC code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Anti-Lock Brake System (ABS) Warning Light ON
- Engine Light ON (or Service Engine Soon Warning Light)
C0590 GMC Description
The Electronic Suspension Control Module (ESCM) commands the damper solenoid ON and OFF. When the solenoid is initially energized, the supply voltage is then Pulse Width Modulated (PWM). The amount the solenoid is activated is based on inputs from the driver tow/haul switch, road inputs, position sensor inputs, and the Powertrain Control Module (PCM). The ESCM continuously compares each dampers command state with the state of their feedback circuits to ensure they agree.