Question about 2003 Honda Accord

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Troubleshoot DTC P1166 and P1167

Primary heater system electrical

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Posted on Jan 02, 2017

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philschneide
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SOURCE: 2002 Honda Acord 4 cyl Se. P1166 and P1167 Fixed

You can try resetting the system (clear the codes) by removing, with the key off, the number 13 fuse (7.5 amp)(CLOCK/BACKUP) from the fuse/relay box (end of the instrument panel, passenger's side) for 10 seconds. If the code comes back, you still have a problem.
Hope this helps you.

Posted on Nov 10, 2009

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SOURCE: 4 Diagnostic Codes for 2002 Honda Accord

p1738 p0135

Posted on Jan 31, 2010

  • 474 Answers

SOURCE: I pulled codes with a OBDII code reader and it

You have a burned Oxygen sencer, and the transmission pressure sencer is bad also. Your heater has a bad switchover circuit. Hope this helps.

Posted on Feb 25, 2011

Testimonial: "Thanks for responding so quickly. I can't afford to take it to the shop so your information will be very helpful to me as i attemp to make repairs THX"

  • 7353 Answers

SOURCE: i have a honda 2002

in the fuse box, it may be marked, or in your owners manual. Chefk them all, then you will know if any fuses are bad. Usually its the sensor if the fuses are good.

Posted on Aug 26, 2011

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in the fuse box, it may be marked, or in your owners manual. Chefk them all, then you will know if any fuses are bad. Usually its the sensor if the fuses are good.

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Hello there:
P1167 and P1166 codes relate to the primary O2 sensor heater malfunction.
there are two different O2 sensors, a "universal" sensor from Autozone and a supposedly OEM sensor from O'Reilly's. Both of them may cause the car to throw a p1166 or P1167 code and run rough. so i highly recommend getting a O2 sensor from Honda, and this will fix the problem .
It turns out that none of the aftermarket probes from Bosch or Denso will work on a ULEV (F23A4) 4 cyl. engine. Honda had different part number probes for the normal VTEC 4 cyl. and the ULEV Vtec engine and the probes look different and have different length cables. The computers at O'Reilly's, Autozone, or NAPA made no distinction between these two engine types.

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Hops helps (remember to rate this answer).

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1 Answer

2002 Honda Acord 4 cyl Se. P1166 and P1167 Fixed


You can try resetting the system (clear the codes) by removing, with the key off, the number 13 fuse (7.5 amp)(CLOCK/BACKUP) from the fuse/relay box (end of the instrument panel, passenger's side) for 10 seconds. If the code comes back, you still have a problem.
Hope this helps you.

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