C0200
System
Chassis (ABS / Stability)
Scanner required
Full-system scanner (engine, ABS, SRS, transmission, service resets)

ABS Pump Motor Relay Circuit

Understand C0200, common causes, and the right SEAFLO pump to diagnose it.

ABS hydraulic pump motor relay circuit fault — pump may not build pressure for ABS events.

Common symptoms

  • ABS light on
  • Soft brake pedal
  • ABS inactive

Typical causes

  • Failed ABS pump relay
  • Blown fuse to pump motor
  • Corroded relay socket
  • Pump motor seized

What scanner do you need?

Full-system scanner (engine, ABS, SRS, transmission, service resets)

Use live data and freeze frame to confirm the fault before replacing parts. ABS, SRS, and network U-codes usually require a full-system scanner.

Diagnostic tips

  • Record freeze frame data when the code first sets
  • Clear the code only after fixing the root cause
  • Check for related pending codes that point to a common issue
  • Verify battery voltage is above 12.4V before chasing sensor codes

Frequently asked questions

Can I diagnose C0200 with a basic code reader?
C0200 may set in the engine module, but related diagnostics often benefit from an enhanced or full-system scanner with live data and freeze frame.
Is it safe to drive with C0200?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.