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How do you fix trouble code P0155?

How do you fix trouble code P0155?

What repairs can fix the P0155 code?

  1. Fix broken wires or bare wires.
  2. Replace the coolant temperature sensor.
  3. Replace the oxygen sensor.
  4. Replace the power control module (PCM), in the rare case that it is necessary.

What is a 02 heater circuit?

This code indicates that the Engine Control Module (ECM) has tested the oxygen sensor heater circuit and has found a problem with sensor 1 in bank 1. If the ECM detects an open circuit, a short-circuit, or excessive current draw in the heater circuit, it will set the P0135 code.

What does P0155 code mean?

Code P0155 occurs when the powertrain control module tests the upstream heated oxygen sensor’s heater circuit on Bank 2 and detects a short in the circuit or excessive resistance in the heater circuit.

Where is the O2 sensor heater located?

The exhaust system has a Heated Oxygen Sensor in front of it. It is part of the Oxygen Sensor Heater. Behind the cylinder head is where the Heated Oxygen Sensor is located.

What does it mean bank 1 sensor 2?

What does bank 1 sensor 2 mean? Bank 1, Sensor 2 is the downstream oxygen sensor located in the exhaust behind the catalytic converter. The engine bank that contains cylinder 1 is called Bank 1. V6 and V8 engines have two banks and two catalytic converters, one for each bank.

What does O2 sensor heater circuit malfunction mean?

DTC P0141 stands for “Oxygen Sensor Heater Circuit Malfunction (Bank 1, Sensor 2).” It indicates that there’s a problem with the heater circuit of engine bank 1’s downstream O2 sensor. Your car’s PCM tests the oxygen sensors’ heater circuits for integrity.

What is O2 sensor heater circuit malfunction?

What does the bank 2 O2 sensor do?

The Downstream Oxygen Sensor (Oxygen Sensor 2) Oxygen sensor 2 is the downstream oxygen sensor in relationship to the catalytic converter. It measures the air-fuel ratio coming out of the catalytic converter to ensure the catalytic converter is functioning properly.

What does the DTC code p0155 stand for?

Diagnostic trouble code (DTC) P0155 stands for ”O2 Sensor Heater Circuit Malfunction (Bank 2, Sensor 1).” It is triggered when the vehicle’s computer or the engine control module (ECM) detects an unexpected voltage condition or excessive current draw on the heater circuit of your vehicle’s Bank 2 HO2.

What is the code for 02 sensor heater circuit?

P0155 is a diagnostic trouble code (DTC) for “02 Sensor Heater Circuit Malfunction (Bank 2, Sensor 1)”. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic.

What causes code p0155 on an oxygen sensor?

To sum things up, the common causes for code P0155 are as follows: 1 Problem on the ground side of the O2 sensor heater circuit 2 Problem on the power side of the O2 sensor heater circuit 3 O2 sensor heater element has high resistance 4 O2 sensor heater element has an open circuit

How much does it cost to repair a p0155 Toyota?

The cost of diagnosing the P0155 TOYOTA code is 1.0 hour of labor. The auto repair’s diagnosis time and labor rates vary by location, vehicle’s make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.