You need a scan tool. Most "Autozone" type parts stores will read codes for free.
check engine light code on my 2001 gmc truck
check engine light code on my 2001 gmc truck
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
You start by having it checked for codes. The light comes on because the computer has detected a fault. You need to know the code to know what to repair.
The code P1887 is for torque converter clutch release switch malfunction.
(torque converter clutch circuit performance or stuck on)
Check the trans for codes with a scanner and diagnose the code you get.
Click the link.
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
Trouble code P0445 means: Evaporative Emission System Purge Control Valve Circuit Shorted
EGR closed position performance.
Check engine is an error. You have to go at a garage to see what is the error code, then correct the problem.