This is a code for voltage reference for sensors and it could be any of them which is a lot of testings.
I would suggest starting with the Engine Coolant Temperature sensor since it is temperature related. It could be a loose or contaminated wire socket and does not necessarily mean a bad sensor.
Check the connector for looseness and contaminations.
If you have a scan tool to monitor the voltages, that would be the easiest way to go about.
Wednesday, December 12th, 2012 AT 9:32 PM