2004 GX470. I just replaced the air bags and rear shocks about a week apart (bags first). AFTER installing the shocks, the CEL came on triggering the VSC TRAC and VSC OFF dash lights. Everything came out much easier than I was lead to believe by the mechanic and went in even easier. I double checked the hoses and wired connections. Any ideas as to what could be causing this CEL? This is my first Yota/Lexus. Had it about 1.5 years.