JEBB4’s Prelude BB6 SiR

Post by **JEBB4** » Fri May 03, 2024 12:26 pm

The dreaded ABS light has shown up..
So it came on after a day of heavy rain, the last time it came on was after I washed it..
Codes are..
51 - Motor lock
52 - Motor stuck on
81 - CPU

I’m guessing there’s a dry solder joint in the ABS module… to be continued..

Post by **JEBB4** » Tue May 14, 2024 10:12 am

Car broke down on me tonight…

First the ABS light came on, then all the dash lights came on, then it all got dim and the needles went dead while driving like a flat battery, then I stopped it refused to re stat like a flat battery….
The battery felt to be getting stronger the longer I left it

I disconnected the ABS pump and valve body.. the car started.. no battery light just ABS light (and SRS light but that’s the aftermarket wheel).
It got just up the road and lights come on again so I thought I’d just risk it and see how far I get..
I got about 4km, nearly made it home

Then it properly died.. so I left it in a bus stop and ran home..
Got my mate to take me back about 30mins later with the battery off the accord.. to my surprise it started straight up

…
The dash lights etc soon returned and I limped home just making it.. quick check of the battery voltage whilst running was about 7 volts.. switched the car off and battery voltage increased to about 11.3v and climbed slowly…

Then I decided bangers and mash and a cuppa was in need so I left it for a bit… I’ll look at it again later..

Scott560 · Post by **Scott560** » Tue May 14, 2024 11:05 am

Almost certainly the alternator has died (most likely the regulator).

Batteries do recover some voltage over time immediately after the load is withdrawn, however try not to leave it flat for too long otherwise it can reduce the batteries capacity/performance.

Post by **JEBB4** » Tue May 14, 2024 12:04 pm

Scott560 wrote: ↑
Tue May 14, 2024 11:05 am
Almost certainly the alternator has died (most likely the regulator).

Batteries do recover some voltage over time immediately after the load is withdrawn, however try not to leave it flat for too long otherwise it can reduce the batteries capacity/performance.

Yep just had a look, not charging.. I’ll order a new one tomorrow and try fix the original as a spare..

I had literally just done a nice fresh oil and filter on it 10 mins before and this is how it repays me

I hope my white car curse has not began with this car too

Post by **JEBB4** » Tue May 21, 2024 10:59 am

Got me an alternator for the lude this week.. fitted it last night..
Out with the old and in with the new…

Back up and running again

Drove it to work today and all was ok, ABS light popped up on the way home though so need to have a look further into that..

Scott560 · Post by **Scott560** » Tue May 21, 2024 11:07 am

Good work - I hate replacing the alternator. For some reason its just the most terrible job for no reason other than the bolts and the space available.

ABS may still complain about low voltage. If the battery was flat then it will take several hours to be topped up.

I'd say the voltage on your picture is a little bit low, even with the headlights connected. I can see you are using jumper leads - is that just to hold the probes whilst you took the picture, or is there another batt connected?

Ideally you want over 14v whilst charging. Check again after several hours of driving (if not already charged the battery off car).

Post by **JEBB4** » Tue May 21, 2024 11:10 am

Some odd pics I’ve taken…

The eagle eyed of you may notice I have rotated the wheels to there correct orientation

Post by **JEBB4** » Tue May 21, 2024 11:32 am

Scott560 wrote: ↑
Tue May 21, 2024 11:07 am
Good work - I hate replacing the alternator. For some reason its just the most terrible job for no reason other than the bolts and the space available.

ABS may still complain about low voltage. If the battery was flat then it will take several hours to be topped up.

I'd say the voltage on your picture is a little bit low, even with the headlights connected. I can see you are using jumper leads - is that just to hold the probes whilst you took the picture, or is there another batt connected?

Ideally you want over 14v whilst charging. Check again after several hours of driving (if not already charged the battery off car).

I found it ok after you pull the PAS pump up out the way abit..
yeah the battery was completely dead and on life support at that point with the jump cables coming from the little civic battery, it was 14.2 with lights off anything between 13.7 and 14.2 is good enough for me..
I’m gunna drive it few more times then I’ll do a battery test hopefully I haven’t done to much damage to the battery as it was brand new very recently