C0171 - TCS Pilot Valve Circuit Malfunction

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

  • Faulty TCS Pilot Valve Solenoid
  • TCS Pilot Valve Solenoid harness is open or shorted
  • TCS Pilot Valve Solenoid circuit poor electrical connection

Possible symptoms

  • Anti-Lock Brake System (ABS) Warning Light ON
  • Engine Light ON (or Service Engine Soon Warning Light)

C0171 Description

The Master Cylinder Isolation Valve, or TCS Prime Valve Solenoid circuits are supplied with battery power when the ignition is in the RUN position. The Electronic Brake Control Module (EBCM) controls the valve functions by grounding the circuit when necessary.
OBDII Code C0171 - TCS Pilot Valve Circuit Malfunction - AutoCodes.com

C0171 Information for specific makes

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C0171 Comments

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