OBD Guide
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B171C

Soft Top Switching Valve 1

B171C is an OBD-II diagnostic trouble code meaning: Soft Top Switching Valve 1. Common causes: open or short circuit in valve circuit, solenoid valve malfunction. Estimated repair cost: $167–389.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$167–389 (est.)

Symptoms

  • The roof folding mechanism does not work
  • Intermittent soft top operation
  • The fault indicator lights up

Causes

  • Open or short circuit in valve circuit
  • Solenoid valve malfunction
  • Contact corrosion
  • Wiring Harness Problems

How to Fix

  1. Check the valve circuit for open and short circuits.
  2. Test solenoid resistance
  3. Check contacts and connectors
  4. Replace switch valve if necessary

Related codes

B171D (Soft Top Switching Valve 2)

FAQ

What does the B171C code mean?

B171C is an OBD-II diagnostic trouble code that indicates: Soft Top Switching Valve 1

What causes a B171C error code?

The most common causes of B171C include: Open or short circuit in valve circuit; Solenoid valve malfunction; Contact corrosion; Wiring Harness Problems.

How do I fix a B171C diagnostic trouble code?

To fix B171C: Check the valve circuit for open and short circuits.. Test solenoid resistance. Check contacts and connectors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B171C?

Yes, but get it checked soon

How much does it cost to fix B171C?

The estimated repair cost for B171C is $167–389. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat