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Ecm fuse have no power when the switch is on?
yeah your right
Where does the fuel pump relay get its power from?
i do believe it is the ecm/computer
Is the ecm the same as the power train control module?
Yes.
What is the power source for the fuel relay of a 1989 Baretta?
The power should come from the ecm or ecu.
Your ecm is not getting power?
Blown fuse, bad connection, or ground.
Why would the computer on a 87 firebird not flash codes?
It won't flash any if there aren't any to flash. It should at least flash code 12 when you use the test terminals. If it doesn't then you probably have a bad ECM. Make sure that you have power going to the ECM first. Most of the GM cars have a power wire running from the battery directly to the ECM. Make sure this is connected and the ECM fuse is good.
What is OBD2 code P0688?
ECM/PCM Power Relay Sense Circuit /Open
95 Olds 88 3.8 engine will turn over but will not start obd does not link to ecm or pcm which ever one it is what would you suggest?
No power to the ecm. Check the fuse marked ECM in the underhood fuse panel(located in the middle top of the firewall)
Does the ecm control the power steering pump?
With out make model and year of the car this question can not be answered.
What would cause a car not to have electricical power?
Malfunctioning alternator, malfunctionining fuse panel, short in the main power wires, ECM failure... take your pick.
What is the 428 relay do on 2000 jetta 1.8t?
Relay #428 under the hood is the ECM Power Control Relay.
How do you fix the ECM failure?
replace the ecm
