OBD Guide

P090B

Clutch B Actuator Control Circuit Performance

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Hard gear shifting
  • Clutch slipping
  • Check Engine Light Illuminates
  • Gear shifting problems
  • Reduced transmission efficiency

Causes

  • Clutch Actuator B Malfunction
  • Open or short circuit in wiring harness
  • Poor contact in connectors
  • Transmission control unit malfunction
  • Problems with power or grounding of the circuit

How to Fix

  1. Check the condition of clutch actuator B
  2. Inspect the wiring harness and connectors for damage.
  3. Check voltage and resistance in control circuit
  4. Test the transmission control unit
  5. Replace faulty components if necessary

Related codes

Error P090B by Vehicle Brand