2001 Mazda B2500 Where Is the Computer Relay Located

Dcbenny · 2020-10-27T00:36:00+00:00

Wanting to replace my computer relay.

ASEMASTER6371

✓ASE Certified Mechanic
52,796 POSTS

Good morning,

I attached the wiring diagram of the relay for you below.

https://www.2carpros.com/articles/how-to-check-wiring

I also attached the location in the fuse block of the relay as well.

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

What is the issue?

Roy

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Oct 27, 2020 at 1:28 AM

DCBENNY

MEMBER
3 POSTS

Engine cuts out at 50 -60 mph. Garage thinks it needs a new computer. I wanted to try replacing the computer relay first. Should I?

Oct 27, 2020 at 8:55 AM

ASEMASTER6371

✓ASE Certified Mechanic
52,796 POSTS

I doubt that is the issue at all. If the relay was bad, it would do it all the time.

When it cuts out, do you mean it stalls out completely or sputters?

Roy

Oct 27, 2020 at 9:10 AM

DCBENNY

MEMBER
3 POSTS

It sputters like several plugs are misfiring then goes back to normal. If I replace the computer as the garage recommends, can I order a Ranger brand since Mazda has none available and does it need to be programmed?

Oct 27, 2020 at 9:21 AM

ASEMASTER6371

✓ASE Certified Mechanic
52,796 POSTS

Yes you can, but it must be programmed to your VIN.

As far as the misfire, i would you replace the plugs? Sometimes it is just basics that cause the issue.

https://www.2carpros.com/articles/engine-misfires-or-runs-rough

Roy

Oct 27, 2020 at 9:38 AM

Where is the computer relay located?