OBD Guide

P2B49

B Camshaft Position Actuator Position Sensor B Circuit Low Bank 1

P2B49 is an OBD-II diagnostic trouble code meaning: B Camshaft Position Actuator Position Sensor B Circuit Low Bank 1. Common causes: camshaft position sensor b 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
  • Deterioration of vehicle dynamics
  • Increased fuel consumption
  • Unstable engine operation at idle
  • The engine may go into emergency mode

Causes

  • Camshaft Position Sensor B Malfunction
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Problems with power supply or sensor ground
  • Engine control unit malfunction

How to Fix

  1. Check the integrity of the sensor circuit
  2. Inspect connectors and contacts for oxidation or damage
  3. Check the power supply and ground of the sensor
  4. Replace camshaft position sensor B if necessary
  5. Test the engine control unit

Related codes

Error P2B49 by Vehicle Brand

FAQ

What does the P2B49 code mean?

P2B49 is an OBD-II diagnostic trouble code that indicates: B Camshaft Position Actuator Position Sensor B Circuit Low Bank 1

What causes a P2B49 error code?

The most common causes of P2B49 include: Camshaft Position Sensor B Malfunction; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Problems with power supply or sensor ground.

How do I fix a P2B49 diagnostic trouble code?

To fix P2B49: Check the integrity of the sensor circuit. Inspect connectors and contacts for oxidation or damage. Check the power supply and ground of the sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2B49?

Yes, but get it checked soon

How much does it cost to fix P2B49?

The estimated repair cost for P2B49 is $28–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat