P0132 Fault Code

P0132 OBD-II Trouble Code Short Description

O2 Sensor Circuit High Voltage (Bank 2 Sensor 1)

Jump To:

What does trouble code P0132 mean?

The P0132 fault code indicates that the O2 (oxygen) sensor circuit for Bank 2 Sensor 1 is reporting a high voltage. This sensor is crucial for monitoring the amount of oxygen in the exhaust gases and helps in adjusting the air-fuel mixture for optimal engine performance.

  • The code is often triggered when the O2 sensor voltage exceeds the manufacturer's specified range.
  • It typically occurs in vehicles with multiple exhaust banks, such as V6 or V8 engines, where Bank 2 refers to the bank of cylinders that is not the reference bank (Bank 1).
  • This issue can lead to poor fuel economy and increased emissions, as the engine control unit (ECU) may struggle to maintain the correct air-fuel mixture.

Symptoms

What are the symptoms of the P0132 code?

Common symptoms associated with a P0132 fault code may include:

  • Illuminated check engine light or malfunction indicator lamp (MIL).
  • Poor engine performance and acceleration hesitation.
  • Increased fuel consumption or decreased fuel efficiency.
  • Rough idling or engine stalling in some cases.

Causes

What causes the P0132 code?

There are several potential causes for a P0132 code, including:

  • A faulty O2 sensor that is stuck in a high-voltage position.
  • Shorted wiring or damaged connectors in the circuit leading to the O2 sensor.
  • Exhaust leaks upstream of the sensor that can interfere with accurate readings.
  • Issues within the engine management system, such as an incorrect fuel trim or a malfunctioning ECU.

Possible Solutions

How to fix P0132?

To address a P0132 code, the following steps are typically recommended:

  • Inspect the wiring and connectors for any signs of damage or corrosion, and repair or replace as necessary.
  • Test the O2 sensor using a multimeter to check for proper operation and replace it if faulty.
  • Check for exhaust leaks before the sensor and repair any that are present.
  • After any repairs, clear the DTCs and take the vehicle for a test drive to ensure the issue has been resolved.
P0132 O2 Sensor Circuit High Voltage (Bank 2 Sensor 1)