Question

2001 Cadillac Cantera V6 how do I change a p0650?

Answer 1

HI there

This code is for a malfunction in the check engine light circuit.

This can be the result of a faulty bulb, bad wiring or an issue with the ecm causing the problem. All will have to be tested, but I would start with a bulb replacement

Answer 2

P0650 CADILLAC - Malfunction Indicator Lamp Control Circuit Malfunction

Read more: https://www.autocodes.com/p0650_cadillac.html