02 Sensor Heater Circuit Malfunction Bank 1 Sensor 2

The heater circuit is energized through a relay that closes when the engine is cranked.

02 sensor heater circuit malfunction bank 1 sensor 2.

This means there is a problem on the o2 sensor on bank 1 and it fails to decrease the time needed to enter closed loop. If the sensor and connector are ok replacing the o2 sensor 1 usually takes care of the problem. Test 2 testing for ground circuit of o2 heater. Test 3 oxygen heater element s ohming.

This indicates the pcm has detected a problem with the bank 2 oxygen sensor. Water getting inside the heated oxygen sensor connector can cause the heated oxygen sensor fuse to blow. Error code p0141 is described as oxygen sensor heater circuit malfunction bank 1 sensor 2. 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.

2002 honda accord p0141 o2 heater circuit malfunction bank 1 sensor 2 youtube. Code p0155 stands for oxygen o2 sensor heater circuit malfunction bank 2 sensor 1. Before replacing the sensor check for the condition of the heated oxygen sensor fuse and connectors. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation.

The pcm monitors the heater circuit and will turn on the check engine light if it finds a problem.