OBD Codes P1166 and P1167?

Tiny
BRANDEN PAINE
  • MEMBER
  • 2002 HONDA ACCORD
  • 2.3L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 180,000 MILES
My Front 02 Sensor (the one on the cat) has no power, I've traced all the wires there is nothing broken or messed up that I can see, everything was still wrapped up tight, I'm showing OBD Codes P1166 and P1167. And when I look at the graph on the bidirectional scanner it's completely flat, 0.0v, sensor 2 is functioning. Also, I replaced both sensors as a first step when I started getting this code, and these two codes are the only codes present, the car is clear besides those.
Sunday, January 7th, 2024 AT 8:18 AM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 POSTS
Yep, it sounds like the voltage driver inside the PCM has gone out. You can send yours in to be tested and repaired or you can get a preprogrammed unit by searching Google or Ebay. Here is the location of the PCM which is in the lower center of the dash so you can swap it out which should fix the problem. Check out the images (below). Please let us know what happens.
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Sunday, January 7th, 2024 AT 11:40 AM
Tiny
BRANDEN PAINE
  • MEMBER
  • 2 POSTS
Okay, great. Thank you so much! I'm going to order one now and I'll update you as to what happens!
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Sunday, January 7th, 2024 AT 6:18 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 POSTS
Sounds good, let me know how it goes :)
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Monday, January 8th, 2024 AT 9:29 AM

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