Hydraulic Accumulator Solenoid Circuit/Open

Common symptoms

What you'll notice

• Check and inspect the wiring and connectors related to the hydraulic accumulator solenoid circuit for any damage or loose connections.
• Replace the hydraulic accumulator solenoid if it is found to be faulty or not functioning correctly.
• Inspect and clean the hydraulic system components, such as valves and hoses, to ensure proper functioning and eliminate any blockages or obstructions.

Common causes

Most likely first

1. Faulty hydraulic accumulator solenoid
2. Loose or damaged electrical connections to the hydraulic accumulator solenoid
3. Malfunctioning or damaged hydraulic accumulator solenoid valve
4. Insufficient hydraulic fluid in the system
5. Internal blockage or restriction in the hydraulic accumulator solenoid circuit

How to diagnose & fix

Work through it in order

1. Check engine light illuminates on the dashboard
2. Decreased fuel efficiency and poor engine performance
3. Transmission shifting problems or harsh shifting
4. Loss of power and acceleration
5. Inconsistent or erratic engine idling