NAIOA Impala Forums :: View topic - Service Engine Soon B2602
Joined: Apr 02, 2012 Posts: 1 Posts per day: 0
2004 Chevrolet Impala
Posted: Mon Apr 02, 2012 12:25 am Post subject: Service Engine Soon B2602
Got a Service Engine Soon light on 2004 impala. got the code look up B2602. Need help
Joined: Aug 16, 2005 Posts: 3465 Posts per day: 0.78 Location: Colorado
2001 Chevrolet Impala
Posted: Mon Apr 02, 2012 3:04 am Post subject:
The code comes up when there is a short to ground or open for more than .3 seconds in the DRL relay control circuit. The issue could be in the relay, the BCM, or the wiring.
_________________ 2001 Galaxy Silver 9C1 w/ L67 and 4T65E-HD...and a few other mods.
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