Question about 1994 Volvo 850
That connects to main relay
Hi Dolphe, I'm guessing that you need to identify which of the five connections is the ground. Take out the relay and on it you should see a circuit diagram. The coil operation which operates the electro magnetic field pulling the switch, will be shown as a series of loops. It will be a normally open normally closed relay, meaning that when there is no power one of the connections will be connected and one open. When power is fed to the circuit the output switches from the one leg to the other. The ground you want is for the coil side of the relay, not the switched part. I wish I had a replacement scanner so I could draw it and let you see, but I hope you'll be able to trace through with the info I've given. Regards John
Posted on Feb 19, 2012
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
Tips for a great answer:
Aug 12, 2017 | Toyota Cars & Trucks
Sep 03, 2016 | 2003 Chrysler Sebring
Dec 04, 2013 | 2009 Pontiac Vibe
Acura Coupes and Sedans 1994-2000 Repair Information
This relay is located behind the dashboard's lower cover. It consists of two individual relays. One is energized whenever the ignition is ON , thus supplying battery voltage to the Powertrain Control Module (PCM). This relay also supplies voltage to the fuel injectors, and power to the second relay. The second relay is energized for two seconds, when the engine is turned ON , to power the fuel pump.
See Figure 1
Fig. Fig. 2: PGM-FI relay terminal numbers
Mar 11, 2013 | Cars & Trucks
Dec 04, 2010 | 2001 Jeep Cherokee
Aug 05, 2010 | Honda Civic Cars & Trucks
Feb 25, 2010 | 1998 Buick Park Avenue
Apr 25, 2009 | 2004 Toyota RAV4
Jun 01, 2017 | 1994 Volvo 850
92 people viewed this question
Usually answered in minutes!