obd 2 codes p-1635 and p-1639
30

Asked by cap1976 Jun 21, 2016 at 09:04 PM about the 2000 Chevrolet Silverado 2500HD LS LB 4WD

Question type: Maintenance & Repair

throwing codes p-1635 and p-1639

2 Answers
42,415

Auto_Centric answered 8 years ago

The computer saying It does NOT like the AC circuit! The powertrain control module (PCM) uses the 5-volt reference 2 circuit as a sensor feed for the A/C refrigerant pressure sensor. The PCM monitors the voltage on the 5-volt reference 2 circuit. and its not friendly with the Manifold Absolute Pressure (MAP) sensor and the Engine Gas Recirculation (EGR) valve. all pretty simple to checkout. Regards

1 people found this helpful.
Best Answer Mark helpful

Your Answer:

Related Questions

Shortcuts

Search Chevrolet Silverado 2500HD Questions

CarGurus Experts

  • #1
    GuruXPQGJ
    Reputation
    1,430
  • #2
    Reelin68
    Reputation
    1,200
  • #3
    Steven Loeffler
    Reputation
    1,160
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used GMC Sierra 2500HD
17 Great Deals out of 1,640 listings starting at $9,988
Used Chevrolet Silverado 1500
202 Great Deals out of 5,975 listings starting at $2,975
Used Ford F-250 Super Duty
24 Great Deals out of 1,204 listings starting at $7,995
Used GMC Sierra 1500
148 Great Deals out of 7,258 listings starting at $3,950
Used Dodge RAM 2500
23 listings starting at $9,975
Used Ford F-150
321 Great Deals out of 14,968 listings starting at $1,712
Used Ford F-250
6 listings
Used Ford F-350 Super Duty
39 Great Deals out of 2,598 listings starting at $8,888
Used Toyota Tundra
35 Great Deals out of 1,184 listings starting at $8,500
Used Chevrolet Silverado 3500
4 listings starting at $29,975
Used Chevrolet Tahoe
24 Great Deals out of 911 listings starting at $11,900

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.