Knock sensor harness check

Tiny
GEEMAN90211
  • MEMBER
  • 2004 HONDA ACCORD
  • 4 CYL
  • AUTOMATIC
  • 195,000 MILES
I want to know how to check the knock sensor harness for breaks or short. Thank you.
Friday, January 3rd, 2020 AT 8:39 PM

1 Reply

Tiny
JIS001
  • MECHANIC
  • 3,411 POSTS
You need to remove the intake manifold to inspect the harness. On the V6 engine, rodents love to eat the harness that the updated pigtail harness would have something like chili pepper sprayed on the insulation to stop them from eating it.

The 4 cylinder you really don't see that so most likely the knock sensor is defective. Had to replace the sensor on my sisters Honda for the knock sensor code. Once the intake is off you will have a better view.
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Friday, January 3rd, 2020 AT 9:14 PM

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