I pulled a CEL off of my car today. I got a code 65, which is a secondary oxygen sensor heater? How do I fix this? Change the secondary o2 sensor?

 

Mine came on because I soldered the wrong wires together. Once I solved that problem it never popped up again.

 

Results for code: 65

Manufacturer
Honda - Engines: 1.5L - (D15B1, D15B2, D15B6, D15B7, D15B8, D15Z1) 1.6L - (B16A3, D16A6, D16Z6) 2.0L - (A20A3, BS, BT, B20A5) 2.1L - (B21A) 2.2L - (F22A1, F22A4, F22A6, F22B1, F22B2, H22A1) 2.3L - (H23A1) 2.7L (C27A4)

Description: Rear Heated Oxygen Sensor Heater

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dgonzals &raquo;</TD></TR><TR><TD CLASS="quote">Results for code: 65

Manufacturer
Honda - Engines: 1.5L - (D15B1, D15B2, D15B6, D15B7, D15B8, D15Z1) 1.6L - (B16A3, D16A6, D16Z6) 2.0L - (A20A3, BS, BT, B20A5) 2.1L - (B21A) 2.2L - (F22A1, F22A4, F22A6, F22B1, F22B2, H22A1) 2.3L - (H23A1) 2.7L (C27A4)

Description: Rear Heated Oxygen Sensor Heater
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Yea, thanks, but is there any other solutions that you people recommend?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CereaLand &raquo;</TD></TR><TR><TD CLASS="quote">

Yea, thanks, but is there any other solutions that you people recommend?
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You can check the resistance of the o2 heater. It should measure 4 to 10 ohms. (If you want to be sure that's the problem.)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Chiovnidca &raquo;</TD></TR><TR><TD CLASS="quote">You can check the resistance of the o2 heater. It should measure 4 to 10 ohms. (If you want to be sure that's the problem.)</TD></TR></TABLE>
If it's OK then you can check to see that the heater terminals are getting 12v power. If they're not, you can look for a blown fuse or broken wires.

The code says that the heater circuit isn't working. You still have to find what's broken.