daimler
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dailmer (07-25-2012)
#4
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I could not find P0237 on the code list I have. What I found on P1646 is below.
It sounds like an oxygen sensor, upstream, A bank. It seems strange you would get
put in limp mode for this. (?)
P1646 ECM HO2S control malfunction – A bank, upstream
HO2S heater failure
HO2S sensing circuit short circuit to
ground or high voltage
HO2S sensing circuit open circuit
ECM failure
It sounds like an oxygen sensor, upstream, A bank. It seems strange you would get
put in limp mode for this. (?)
P1646 ECM HO2S control malfunction – A bank, upstream
HO2S heater failure
HO2S sensing circuit short circuit to
ground or high voltage
HO2S sensing circuit open circuit
ECM failure
#5
![Default](/forum/images/icons/icon1.gif)
I could not find P0237 on the code list I have. What I found on P1646 is below.
It sounds like an oxygen sensor, upstream, A bank. It seems strange you would get
put in limp mode for this. (?)
P1646 ECM HO2S control malfunction – A bank, upstream
HO2S heater failure
HO2S sensing circuit short circuit to
ground or high voltage
HO2S sensing circuit open circuit
ECM failure
It sounds like an oxygen sensor, upstream, A bank. It seems strange you would get
put in limp mode for this. (?)
P1646 ECM HO2S control malfunction – A bank, upstream
HO2S heater failure
HO2S sensing circuit short circuit to
ground or high voltage
HO2S sensing circuit open circuit
ECM failure
#6
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