2002 Volvo S60 P0037 DTC code

Tiny
M88CAP
  • MEMBER
  • 2002 VOLVO S60
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 80,000 MILES
What does HO2S Bank 1 Sen 2 Heater Circuit Low mean and can I fix it myself?
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Monday, June 29th, 2009 AT 4:32 PM

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Tiny
JIS001
  • EXPERT
I am not sure where your from but the S60 comes with an inline 5 engine and not a 6 cylinder? To fault trace if it is sensor 2 then you need to check the oxgen sensor in backof he catalytic converter.

Check the resistance of the heated oxygen sensor (HO2S) between terminals #1 and #2.

Check the signal cable between heated oxygen sensor (HO2S) terminal #2 and control module terminal #A6 (#A6). Check for a short-circuit to ground.

If you have no resistance at all between #1 and #2 terminals on the sensor itself then the heating element insdie the sensor has gone open circuited so you will need to replace the sensor.
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Tuesday, June 30th, 2009 AT 1:26 AM

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