Hydraulic Pump Motor Failure
The hydraulic pump motor in the traction control system has a malfunction.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The hydraulic pump motor helps with braking and traction control, and if it's not working, those systems can't operate correctly.
What the computer is actually seeing
The control module detects a lack of motor activity when it commands the hydraulic pump to activate, typically within a 10-second interval.
What a healthy reading looks like
The hydraulic pump motor should draw about 10-15 amps when running; if it doesn't engage after command, it triggers this code.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 11. Inspect the wiring and connectors to the hydraulic pump motor for any visible damage. Repair or replace as necessary. Decision: If repair fixes issues, clear codes and retest.
- 22. Check the power and ground at the hydraulic pump motor with the key on and engine off. You should see power (12-14 volts) at the motor. Decision: If no power, investigate further back to the control module or fuse.
- 33. With the wiring intact, test the hydraulic pump motor directly to see if it runs when powered. If it runs, wiring is good. Decision: If it doesn't run, the motor likely needs replacement.
- 44. Check the hydraulic pump relay operation. Swap it with a similar relay in the fuse box. If the issue resolves with the new relay, replace the faulty relay.
Common causes
- Damaged wiring to the motor
- Faulty hydraulic pump motor
- Failed hydraulic pump relay
- Corroded connectors in the system
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's not ideal; traction control may not work properly, which can affect safety, especially in slippery conditions.
Will this code come back after clearing?
It can if the underlying issue isn't fixed; keep an eye out for it after repairs.
Why does this code pair with others?
Codes can help pinpoint broader system failures; multiple codes often indicate issues in the same subsystem.
Working a real vehicle right now?
Let DiagCoach walk you through it live with your specific symptoms, vehicle, and what you've already checked.
Start guided diagnostic →