OBD Guide

P01BC

Engine Oil Temperature Sensor B Circuit High

P01BC is an OBD-II diagnostic trouble code meaning: Engine Oil Temperature Sensor B Circuit High. Common causes: oil temperature sensor b fault, open or short circuit in wiring harness. Estimated repair cost: $56–167.

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

Symptoms

  • Incorrect oil temperature readings on the dashboard
  • Reduced engine efficiency
  • Illumination of the fault warning lamp (Check Engine)

Causes

  • Oil temperature sensor B fault
  • Open or short circuit in wiring harness
  • Poor contact in the sensor connector
  • Problems with the engine control unit (ECU)

How to Fix

  1. Check the integrity of the wiring harness and sensor connectors
  2. Measure the resistance of oil temperature sensor B
  3. Check the voltage in the sensor circuit
  4. Replace oil temperature sensor B if necessary
  5. Clear error codes and check if P01BC returns

Related codes

Error P01BC by Vehicle Brand

FAQ

What does the P01BC code mean?

P01BC is an OBD-II diagnostic trouble code that indicates: Engine Oil Temperature Sensor B Circuit High

What causes a P01BC error code?

The most common causes of P01BC include: Oil temperature sensor B fault; Open or short circuit in wiring harness; Poor contact in the sensor connector; Problems with the engine control unit (ECU).

How do I fix a P01BC diagnostic trouble code?

To fix P01BC: Check the integrity of the wiring harness and sensor connectors. Measure the resistance of oil temperature sensor B. Check the voltage in the sensor circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P01BC?

Limited driving only, diagnose soon

How much does it cost to fix P01BC?

The estimated repair cost for P01BC is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat