× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Re: What do you make of thisCoolant temp sensor signal ?
Posted to Technical Discussion Forum on 2/23/2001 2 Replies

Hi Romain,

Straight from the Vantage data base for a '93 Dodge Shadow 2.5L:

"ECT 5V signal is pulsed by PCM. It is normal to see evenly spaced + and/or - votlage spikes. It is normal to see only positive spikes, negative spikes, or both." (It... Login to read more.

2 Replies Received (View Replies)