» » »

Chevrolet Q&A

Ask Your Question

2001 Chevrolet Blazer Question: why does the code reader tell me the check engine light is working but thr light

 

Question

cool rider, Hurst, TX, April 06, 2012, 06:48
 Rookie

when i go to start the car the check engine light does not come on in the display like all of the other warning lights before i start the engine

2 Answers
Flag This
  • Answer #1

    Greg's Orange Auto (13005 Answers) , Orange, CA - (714) 361-9386
    globalhelper April 06, 2012, 07:12
     Master

    ck for burn't out bulb to start with

    Flag This
  • Reply

    cool rider, April 06, 2012, 07:28
     Rookie

    yeah that was the first thing i did. then finally son pulles panel, opened up, and looked thru found black tape on inside blocking light from coming thru

    Reply
    Flag This
  • Answer #2

    Miles Auto Services (884 Answers) , Richmond, VA - (804) 885-4176
    milesauto April 06, 2012, 07:16
    Profile_thumbnail
     Master

    Does the check engine light come on at all when you turn the key on. It may not come on the the same sequence as the other lights. If it never comes on the bulb or circuit could be a problem.

    Flag This
  • Reply

    cool rider, April 06, 2012, 07:27
     Rookie

    ive checked the bulb and the cercuit has resestance so that all looks good any other ideals

    Flag This
  • Reply

    milesauto, April 06, 2012, 08:13
    Profile_thumbnail
     Master

    Here is a case simular to yours someone else had like yours and what to do to test.

    Failed emissions with code P0410. Replaced air pump in the main fuse. Now no check engine light with key on but it Runs fine.
    Average Reported Mileage: 95000
    Tests/Procedures: 1. Disconnect the Red connector at Vehicle Control Module (VCM)

    2. Ground the Brown/White wire on pin 41.

    3. If the Service Engine Soon (SES) light comes on, leave the VCM disconnected for a few minutes (both connectors), and if the light works normally when reconnected, it has a bad connection or a glitch in the VCM.

    4. If the light is not coming on, it has a bad VCM

    Flag This
  • Reply

    cool rider, April 06, 2012, 12:06
     Rookie

    son found problem. someone covered panel on inside with electrical tape instead of servicing engine. some people are lazy and stupid. LOL. atleast its fixed and not a hard or expensive fix

    Reply
    Flag This