C1155 code
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Junior Member
Joined: Oct 2018
Posts: 1
C1155 code
I have a 2010 Ford Explorer Eddie Bauer Edition. I had the fault code C1123 for my left front wheel speed sensor. I replaced the wheel speed sensor with a BWD sensor from my local parts store. And that code went inactive but now I have a fault code C1155 can anyone help by telling me what could cause this new fault code. Because my SUV is telling me to service the RSC but the only fault I had was for my wheel speed sensor. I’m lost with this thing.
Senior Member
Joined: Jun 2010
Posts: 16,577
Something you might be overlooking,
Some manufacturer specific codes attempt to narrow down a problem with a particular system. Unfortunately replacing a sensor is not always the correction.
Wiring problems can also be present. Some sensors send what we call a bias voltage down to the sensor when you first turn the key on. that step will check some of the integrity of the circuit and if a fault is found the light comes on as soon as the vehicle starts moving. If you replaced the sensor and everything was installed correctly, the 1155 code is telling you something is not complete with the circuit/system. The object now is to chase down the wiring and connections until the cause is determined.
Some manufacturer specific codes attempt to narrow down a problem with a particular system. Unfortunately replacing a sensor is not always the correction.
Wiring problems can also be present. Some sensors send what we call a bias voltage down to the sensor when you first turn the key on. that step will check some of the integrity of the circuit and if a fault is found the light comes on as soon as the vehicle starts moving. If you replaced the sensor and everything was installed correctly, the 1155 code is telling you something is not complete with the circuit/system. The object now is to chase down the wiring and connections until the cause is determined.
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