OBD Guide
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B171A

Soft Top Hydraulic Pump Left

B171A is an OBD-II diagnostic trouble code meaning: Soft Top Hydraulic Pump Left. Common causes: hydraulic pump fuse blown, pump control circuit open. Estimated repair cost: $167–556.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$167–556 (est.)

Symptoms

  • The soft roof folding mechanism on the left side does not work
  • Pump clicks or hums when trying to open the roof
  • Roof fault warning on dashboard

Causes

  • Hydraulic pump fuse blown
  • Pump control circuit open
  • Pump motor malfunction
  • Hydraulic fluid leak
  • Mechanical Components Sticking
  • Wiring Harness Problems

How to Fix

  1. Check soft top pump fuse
  2. Diagnose the pump control circuit (voltage, resistance)
  3. Check the level and condition of the hydraulic fluid
  4. Check the operation of the pump motor
  5. Look for leaks in the hydraulic system
  6. Check roof mechanics for jams

Related codes

B171BB1710B1711

FAQ

What does the B171A code mean?

B171A is an OBD-II diagnostic trouble code that indicates: Soft Top Hydraulic Pump Left

What causes a B171A error code?

The most common causes of B171A include: Hydraulic pump fuse blown; Pump control circuit open; Pump motor malfunction; Hydraulic fluid leak.

How do I fix a B171A diagnostic trouble code?

To fix B171A: Check soft top pump fuse. Diagnose the pump control circuit (voltage, resistance). Check the level and condition of the hydraulic fluid. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B171A?

Limited driving only, diagnose soon

How much does it cost to fix B171A?

The estimated repair cost for B171A is $167–556. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat