OBD Guide

P0C9F

14 Volt Power Module Current Sensor B Circuit High

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$28–167 (est.)

Symptoms

  • Check Engine Light Is On
  • Reduced performance of the hybrid system
  • Problems with charging a 12V battery
  • Disabling some electronic systems
  • Error message on the dashboard

Causes

  • Faulty current sensor B in 14V module
  • Open or short circuit in the sensor circuit
  • Poor contact in sensor circuit connectors
  • Wiring harness damage
  • Malfunction of the 14-volt power module itself

How to Fix

  1. Check continuity of current sensor B circuit
  2. Inspect connectors and contacts for corrosion or damage
  3. Check the resistance and signal of the current sensor
  4. If necessary, replace the current sensor
  5. Check and, if necessary, replace the 14-volt power supply module

Related codes

Error P0C9F by Vehicle Brand