OBD Guide

P08B4

Clutch Pedal Position Sensor B Circuit/Open

P08B4 is an OBD-II diagnostic trouble code meaning: Clutch Pedal Position Sensor B Circuit/Open. Common causes: sensor circuit open, clutch pedal position sensor b malfunction. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Gear shifting problems
  • Check Engine Light Is On
  • The car goes into emergency mode
  • Unstable engine operation when pressing the clutch pedal

Causes

  • Sensor circuit open
  • Clutch pedal position sensor B malfunction
  • Wiring harness damage
  • Contact corrosion
  • Problems with the engine control unit

How to Fix

  1. Check the integrity of the sensor circuit
  2. Check the condition of contacts and connectors
  3. Replace clutch pedal position sensor B if necessary
  4. Check wiring harness for damage
  5. Scan the control unit for additional errors

Related codes

Error P08B4 by Vehicle Brand

FAQ

What does the P08B4 code mean?

P08B4 is an OBD-II diagnostic trouble code that indicates: Clutch Pedal Position Sensor B Circuit/Open

What causes a P08B4 error code?

The most common causes of P08B4 include: Sensor circuit open; Clutch pedal position sensor B malfunction; Wiring harness damage; Contact corrosion.

How do I fix a P08B4 diagnostic trouble code?

To fix P08B4: Check the integrity of the sensor circuit. Check the condition of contacts and connectors. Replace clutch pedal position sensor B if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P08B4?

Yes, but get it checked soon

How much does it cost to fix P08B4?

The estimated repair cost for P08B4 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat