I need help with a obd2 code

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Jan 28, 2004 | 12:55 AM

5H9D0W

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Joined: Jan 2003

Posts: 351

From: South Holland,IL

I need help with a obd2 code

I pulled P0056 in a 97 s10.Please help me how to figure out what heater circuit b2 s2 means.

Jan 28, 2004 | 10:59 PM

Injuneer

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Joined: Nov 1998

Posts: 71,110

From: Hell was full so they sent me to NJ

I have no idea what the codes for a 97 S10 are, but "heater circuit b2 s2" would mean that the O2 sensor on the passenger side of the engine, in the after-cat position, has a faulty "heater" circuit..... the heater is supplied by two of the wires in a 4-wire sensor.