2009 Honda CRV knock sensor

Tiny
SLEDBOY2K
  • MEMBER
  • 2009 HONDA CRV
  • 2.4L
  • 4 CYL
  • AWD
  • AUTOMATIC
  • 50,000 MILES
I threw a P0325 code for knock sensor circuit malfunction. I cleared the code and drove it 2 miles and it came back on again. I was wondering if you can test the knock sensor using an ohm meter to see if its still good? If so, what should the resistance be? Thank you
Saturday, December 21st, 2013 AT 9:17 AM

4 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Honda doesn't give a resistance for that in our manual but on a gm it's like 8-9000 ohms. But ground out knocke sensor and check for ground at terminal 42 see pic. Also after replacement an dclearing code hold at 3000-4000 rpm then return to idleif light comes on with same code then it may need a software update for pcm or pcm may be bad.
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Saturday, December 21st, 2013 AT 10:31 AM
Tiny
SLEDBOY2K
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  • 39 POSTS
I can't get an ohm reading at all. I'm assuming that means it isn't any good?
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Saturday, December 21st, 2013 AT 12:21 PM
Tiny
SLEDBOY2K
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  • 39 POSTS
I went and rechecked my ohms and I'm reading 7 megaohms which is way larger than most of the specs I've seen from other manufacturers.
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Saturday, December 21st, 2013 AT 12:35 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Like I said Honda doesn't give us any specs n it and the only ones I can find are from fords which is 4.39M-5.35M ohms. So that may be right what you are reding. Have you grounded out knock sensor wire and checked for a reading at pin 42 like in pic that should say if there is a short in wire. It still cold be a bad pcm but that is kind of hard to fathom. Are there any other codes? Because it may be something else causing the ks to go off.
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Saturday, December 21st, 2013 AT 3:38 PM

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