P-Brake/Brake Symbol & Seatbelt Warning

[LifeRunner]

Hey y'all, long time no see. 

Having been Ram-less for about two years, I could hardly live with myself anymore so I caved in and went ahead and picked up a '99 2500 today. It has some issues, two of which are the warning lights for the parking brake, or brakes? They're to the left of the seatbelt light in the instrument cluster. 

I've tried some googling, but getting few answers. I don't really know where to begin with this, I've checked the switch for the parking brake underneath the dashboard. Unplugged it, but it made no difference. 

Since I'm based in Norway, the chances of finding someone with an actual Dodge scan tool that will read anything other than engine faults are slim to none unless I fly them across half the country. 

 

The other issue it's having that isn't drivetrain related is the seatbelt light, it'll come on after about 30-60 seconds after startup, whether or not the seatbelt is buckled makes no difference. I have electric seats, and I've found the SCTM underneath the middle seat but this entire system seems like a bit of a mystery to me. 

 

Looking for any pointers on where to start troubleshooting and things to verify and check. 

[Mopar1973Man]

Brake and ABS lights are a speed sensor issue typically. It could be a bad wheel bearing in the front too.

 

As for the seat belt double check the buckle switch on the driver side buckle. As for the module it might be easier to change the seats out for a late series without the module.

 

[LifeRunner]

On 8/21/2023 at 3:32 PM, Mopar1973Man said:

Brake and ABS lights are a speed sensor issue typically. It could be a bad wheel bearing in the front too.

 

As for the seat belt double check the buckle switch on the driver side buckle. As for the module it might be easier to change the seats out for a late series without the module.

 

Alright, thanks. 

Hoping the problem isn't the module, as things like seats aren't all that easy getting a hold of over here. 

Albeit the drivers seat could really do with a replacement. 

[Mopar1973Man]

Like I'm working on a 1998 Dodge Ram 2500 12V with a electrical draw and already pulled the center seat to access the module to see about fixing the electrical draw of 4.5 to nearly 5 amps. In this case the seat module is working and not part of the problem.

 

As for the ABS and BRAKE lights that is because typically there is a speed sensor error or failure.

Edited August 26, 2023 by Mopar1973Man

[LifeRunner]

20 hours ago, Mopar1973Man said:

Like I'm working on a 1998 Dodge Ram 2500 12V with a electrical draw and already pulled the center seat to access the module to see about fixing the electrical draw of 4.5 to nearly 5 amps. In this case the seat module is working and not part of the problem.

 

As for the ABS and BRAKE lights that is because typically there is a speed sensor error or failure.

Man that's a nice colour, I'm no fan of the 4th gen bumper but that looks like a nice truck. 

 

I went over to my dad's and stole his scan tool, left front ABS sensor is dead shorted, new on order. There was a few codes in memory from before, VIN mismatch, short circuits here and there but only the left front remained after deleting DTC's. 

Though now it's making a strange "poof" noise when ignition is on, but seems to work fine other than the odd noise on startup. 

 

The seat belt warning was giving me a "Pressure Switch Circuit Open/Short" and "SCTM Fault", the first one vanished after fiddling around with the SCTM for a brief moment but the SCTM fault remains, but no warning light. Hooray! 

 

[wil440]

My memory is a bit hazy but I have a 98.5 and I had a seat belt light that wouldn't go out I got a used  seat belt module shipped to the UK but there was also a fault with the reel in the seat back IIRC, there's a 2 core wire that goes up the back of the seat under the seat cover to the reel, it goes to a small solenoid or switch which was burnt out, I got a reel shipped which fixed it

 

[Sycostang67]

Both times I’ve had issues with a seatbelt light, this was the cause. 

[Mopar1973Man]

I would just jump the two pins below the seat.