Go Back   Truck Forums > Chevrolet/GMC Truck Forums > Chevy Silverado/ GMC Sierra Forum
Sign in using an external account
Register Forgot Password?
Search

Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 07-28-2009, 07:55 PM
Junior Member
 
Join Date: Jul 2009
Location: Aurora, Colorado
Posts: 15
Default help on reading codes

the codes i got on my 89 chevy silverdo 5.7 were 1 flash followed by 2 flashes code 12 im assuming. the other was 4 flashes followed by 3 flashes code 43. does anyone know what these codes mean? thanks in advance.
This ad is not displayed to registered members.
Register your free account today and become a member on Truckforums!
Reply With Quote
  #2  
Old 07-28-2009, 08:46 PM
chrisbmo2000's Avatar
General Truck/Classifieds Forum Moderator
 
Join Date: Jan 2009
Location: Columbia, Mo
Posts: 984
Default

are you sure you got the codes right? code 12 means system pass. The 43 code must be a stored code that is not currently active.....the 43 means ESC circut(Electronic Spark Control).....but I am still confused by the system pass here is a list of codes
12 System Pass
13 Open Oxygen Sensor Circuit
14 Coolant Temperature Sensor (High Temp Indicated)
15 Coolant Temperature Sensor (Low Temp Indicated)
21 Throttle Position Sensor (Signal Voltage High)
22 Throttle Position Sensor (Signal Voltage Low)
23 Manifold Air Temperature (MAT) Low Temp Indicated
24 Vehicle Speed Sensor (VSS) Circuit
25 Manifold Air Temperature (MAT) High Temp Indicated
32 Exhaust Gas Recirculation (EGR) Circuit
33 Manifold Absolute Pressure Sensor Circuit (High Sig.)
34 Manifold Absolute Pressure Sensor Circuit (Low Sig.)
42 Electronic Spark Timing (EST) Circuit
43 Electronic Spark Control (ESC) Circuit
44 Oxygen Sensor Circuit (Lean Exhaust Indicated)
45 Oxygen Sensor Circuit (Rich Exhaust Indicated)
51 Faulty PROM
52 Fuel CALPAK Error or Missing
54 Fuel Pump Circuit (Low Voltage)
55 55 ECM Error
__________________
CHRIS
97 Suburban
Descreened MAF
Turned up EPC
Blacked out Grill
New Motor
Tranny built for pulling
My Photos
http://s561.photobucket.com/albums/ss55/chrisbmo2000/

10/23/10 Believe it!!! Mizzou beat Oklahoma
Check out the Truck of the month, nominate and VOTE !!!!!!!!
PM me or any of the other Moderators if you need anything
Reply With Quote
  #3  
Old 07-29-2009, 09:25 AM
Junior Member
 
Join Date: Jul 2009
Location: Aurora, Colorado
Posts: 15
Default

what does system pass mean? as far as i know i read it right i stuck the paper clip in and turned on acc, and got 1 long flash followed by 2 quick flashes. then imediatly after i got 4 quick flashes followed by 3 quick flashes
Reply With Quote
  #4  
Old 07-29-2009, 09:24 PM
chrisbmo2000's Avatar
General Truck/Classifieds Forum Moderator
 
Join Date: Jan 2009
Location: Columbia, Mo
Posts: 984
Default

system pass means that there are no current faults found....the 43 is probably a stored code from an earlier problem
__________________
CHRIS
97 Suburban
Descreened MAF
Turned up EPC
Blacked out Grill
New Motor
Tranny built for pulling
My Photos
http://s561.photobucket.com/albums/ss55/chrisbmo2000/

10/23/10 Believe it!!! Mizzou beat Oklahoma
Check out the Truck of the month, nominate and VOTE !!!!!!!!
PM me or any of the other Moderators if you need anything
Reply With Quote
  #5  
Old 07-31-2009, 01:41 PM
Junior Member
 
Join Date: Jul 2009
Location: Aurora, Colorado
Posts: 15
Default

thanks for the help man. one more question though when im driving my truck the SES light comes on for a brief few seconds and then goes right back off it has only happened a few times and im just wondering if that would be the code 43 that is stored thanks in advance.
Reply With Quote
  #6  
Old 07-31-2009, 08:32 PM
RUFFNECK4LYFE's Avatar
Toyota, Nissan, and Other Truck Forum Moderator
 
Join Date: May 2009
Location: West Texas
Posts: 1,845
Default

Got to Autozone and let them flash it for codes and see what their system says. It may be more detailed. Top of that its free.
Reply With Quote
  #7  
Old 08-01-2009, 09:41 AM
chrisbmo2000's Avatar
General Truck/Classifieds Forum Moderator
 
Join Date: Jan 2009
Location: Columbia, Mo
Posts: 984
Default

like RUFFNECK4LYFE said hit up an autozone and have them clear the code for you then check it in a week and see if it came back
__________________
CHRIS
97 Suburban
Descreened MAF
Turned up EPC
Blacked out Grill
New Motor
Tranny built for pulling
My Photos
http://s561.photobucket.com/albums/ss55/chrisbmo2000/

10/23/10 Believe it!!! Mizzou beat Oklahoma
Check out the Truck of the month, nominate and VOTE !!!!!!!!
PM me or any of the other Moderators if you need anything
Reply With Quote
Old 08-01-2009, 09:41 AM
 
 
 
Reply



Tags
43, 44, 89, chevrolet, chevy, circuit, code, codes, coolant, ford, pass, reading, sensor, silverado, system

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Advertising

Featured Sponsors
Vendor Directory

Our Sponsors
Advertising
All times are GMT -5. The time now is 11:38 AM.

Internet Brands, Inc.



SEO by vBSEO ©2010, Crawlability, Inc.