OBD Guide

P2B70

Turbocharger/Supercharger A Temperature Sensor Circuit High

P2B70 is an OBD-II diagnostic trouble code meaning: Turbocharger/Supercharger A Temperature Sensor Circuit High. Common causes: turbocharger temperature sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $28–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$28–89 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced engine power
  • The engine goes into emergency mode
  • Unstable operation of the turbocharger
  • Increased fuel consumption

Causes

  • Turbocharger temperature sensor malfunction
  • Open or short circuit in the sensor circuit
  • Poor contact in sensor connectors
  • Problems with the engine control unit
  • Corroded contacts or damaged wiring

How to Fix

  1. Check the condition of the turbocharger temperature sensor
  2. Check the integrity of the sensor circuit and the condition of the connectors
  3. Measure resistance and voltage at the sensor
  4. Replace temperature sensor if necessary
  5. Clean contacts and repair damaged wiring

Related codes

Error P2B70 by Vehicle Brand

FAQ

What does the P2B70 code mean?

P2B70 is an OBD-II diagnostic trouble code that indicates: Turbocharger/Supercharger A Temperature Sensor Circuit High

What causes a P2B70 error code?

The most common causes of P2B70 include: Turbocharger temperature sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in sensor connectors; Problems with the engine control unit.

How do I fix a P2B70 diagnostic trouble code?

To fix P2B70: Check the condition of the turbocharger temperature sensor. Check the integrity of the sensor circuit and the condition of the connectors. Measure resistance and voltage at the sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2B70?

Yes, but get it checked soon

How much does it cost to fix P2B70?

The estimated repair cost for P2B70 is $28–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat