OBD Guide

P0AF6

Drive Motor Inverter Temperature Sensor B Circuit Intermittent/Erratic

P0AF6 is an OBD-II diagnostic trouble code meaning: Drive Motor Inverter Temperature Sensor B Circuit Intermittent/Erratic. Common causes: poor contact in the sensor connector, open or short circuit in the sensor circuit. Estimated repair cost: $28–89.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$28–89 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced motor power
  • Intermittent operation of the hybrid system
  • The vehicle goes into emergency mode
  • Error message on the dashboard

Causes

  • Poor contact in the sensor connector
  • Open or short circuit in the sensor circuit
  • Inverter temperature sensor malfunction
  • Problems with the wiring harness near the inverter
  • Malfunction of the motor inverter itself

How to Fix

  1. Check the integrity of the sensor wiring and connectors
  2. Test the resistance of the temperature sensor
  3. Check the sensor signal with an oscilloscope
  4. Replace temperature sensor if necessary
  5. Diagnose the inverter module in case of repeated errors

Related codes

Error P0AF6 by Vehicle Brand

FAQ

What does the P0AF6 code mean?

P0AF6 is an OBD-II diagnostic trouble code that indicates: Drive Motor Inverter Temperature Sensor B Circuit Intermittent/Erratic

What causes a P0AF6 error code?

The most common causes of P0AF6 include: Poor contact in the sensor connector; Open or short circuit in the sensor circuit; Inverter temperature sensor malfunction; Problems with the wiring harness near the inverter.

How do I fix a P0AF6 diagnostic trouble code?

To fix P0AF6: Check the integrity of the sensor wiring and connectors. Test the resistance of the temperature sensor. Check the sensor signal with an oscilloscope. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0AF6?

Limited driving only, diagnose soon

How much does it cost to fix P0AF6?

The estimated repair cost for P0AF6 is $28–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat