OBD Guide
ENFRDEESPT

P147B

Particulate Matter Sensor Shunt Circuit High Current

P147B is an OBD-II diagnostic trouble code meaning: Particulate Matter Sensor Shunt Circuit High Current. Common causes: short circuit in the soot sensor circuit, particulate sensor malfunction. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Check Engine Light Is On
  • Reduced engine power
  • Increased fuel consumption
  • Incorrect operation of the exhaust gas purification system
  • Possible problems with passing technical inspection

Causes

  • Short circuit in the soot sensor circuit
  • Particulate sensor malfunction
  • Wiring harness damage
  • Problems with the engine control unit
  • Corrosion of electrical contacts

How to Fix

  1. Check the integrity of the wiring harness to the sensor
  2. Measure the resistance and voltage in the sensor circuit
  3. Check for short circuit
  4. Replace the soot sensor if necessary
  5. Clean or replace corroded contacts

Related codes

P147AP147CP2459

FAQ

What does the P147B code mean?

P147B is an OBD-II diagnostic trouble code that indicates: Particulate Matter Sensor Shunt Circuit High Current

What causes a P147B error code?

The most common causes of P147B include: Short circuit in the soot sensor circuit; Particulate sensor malfunction; Wiring harness damage; Problems with the engine control unit.

How do I fix a P147B diagnostic trouble code?

To fix P147B: Check the integrity of the wiring harness to the sensor. Measure the resistance and voltage in the sensor circuit. Check for short circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P147B?

Yes, but get it checked soon

How much does it cost to fix P147B?

The estimated repair cost for P147B is $56–167. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat