OBD Guide

B26FB

Clutch Switch

B26FB is an OBD-II diagnostic trouble code meaning: Clutch Switch. Common causes: faulty or worn clutch pedal switch, violation of the switch position adjustment. Estimated repair cost: $6–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$6–56 (est.)

Symptoms

  • The engine does not start without fully pressing the clutch pedal
  • Cruise control does not activate or turns off spontaneously
  • The transmission or cruise control warning light is on
  • Code B26FB when diagnosing the BCM or transmission control module

Causes

  • Faulty or worn clutch pedal switch
  • Violation of the switch position adjustment
  • Open or short circuit in the switch circuit
  • Oxidation of switch connector contacts
  • Mechanical damage to the switch when hitting the pedal

How to Fix

  1. Read error codes and determine which systems are affected
  2. Find the clutch switch on the pedal assembly
  3. Check the switch adjustment: it should operate at the beginning of the pedal stroke
  4. Check the presence of power and signal at the switch contacts when pressing the pedal
  5. Clean connector contacts from oxidation
  6. If the switch malfunctions, replace it and adjust the position

Related codes

FAQ

What does the B26FB code mean?

B26FB is an OBD-II diagnostic trouble code that indicates: Clutch Switch

What causes a B26FB error code?

The most common causes of B26FB include: Faulty or worn clutch pedal switch; Violation of the switch position adjustment; Open or short circuit in the switch circuit; Oxidation of switch connector contacts.

How do I fix a B26FB diagnostic trouble code?

To fix B26FB: Read error codes and determine which systems are affected. Find the clutch switch on the pedal assembly. Check the switch adjustment: it should operate at the beginning of the pedal stroke. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B26FB?

Yes, but get it checked soon

How much does it cost to fix B26FB?

The estimated repair cost for B26FB is $6–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat