Electrical Problem

[HenRoc]

I'm having a major issue with my car. I recently completed an H22 swap into my car. A few nights ago the car had power going to the CEL , fuel pump and starter.

I checked all the connections, including my grounds and even checked for voltage and I get a full 12 volts to the main fuse box.

I know the battery was dead so I had it recharged at a local AutoZone. I don't know if the battery having a dead cell would cause it to have a no power issue.

Currently the only lights that come on are the SRS , interior and headlamps. Even the horn works. Would a dead cell in the battery cause a big drain like this?

Cliffs:
- Completed H22 swap
- Car has no power going to the starter, fuel pump or CEL light
- Only lights receiving power are:
SRS light for system self check,
'Brake' light indicator (emergency brake),
headlamps and horn.

- Unsure if the battery has a dead cell even though it reads 12 volts.

It has no aftermarket alarm system in it. Completely stock.

[sonikaccord]

Check your main relay

[HenRoc]

I checked the main relay. Used a spare and same thing happens

[sonikaccord]

Did you check the inputs and outputs to it?

[F22Chris]

Just because your battery reads 12 volts doesn't mean anything other than its ready to be tested. Each cell is 2.1v, so you should have 12.6 charged. Load test it, check terminals and make sure they're tight, check grounds, and check to make sure nothing stupid is missed. Like the ground on the battery touching the chassis stupid.