Elecrical Issues

[Blazerman]

Hi everyone,

I'm from Germany and have been driving my Gen4 Laramie since 2018 without any significant problems.
The regular maintenance, such as tie rods, oil changes, brakes, lights, etc., were all easy to do.
But now I'm suddenly having several problems and can't find the error?

The error codes according to AlfaOBD are:

B1D0B
Driver Mirror Vertical Position Sensor Input Short circuit to + battery

However, I can adjust the mirror normally using the switch on the driver's side. Only the automatic lowering when reversing no longer works on the driver's side.
I removed the mirror glass and couldn't find any faults with the wiring.

P0108
Manifold Absolute Pressure Sensor Circuit High

I've already ordered a new sensor and will replace it. I hope this solves the problem.

B109B
Panel Mode Door 2 Control Circuit/Performance

I dont´t know the issue?
Additionally, I've been having a problem with the PDC/PTS sensors not working for some time.

B1298 and the other sensors
Short circuit to + battery

I've already replaced the rear wiring harness and the sensors.
I can't find any wiring errors here either.

Additionally, I have the problem that the left DRL always goes out when I press the brake pedal.

I can also hear a clicking noise in the center console...

I have Morimoto headlights installed, and they otherwise work perfectly, but if I connect the DRL as Morimoto described, does it go out on the driver's side when I brake?

I have checked and cleaned all ground connections, I have checked and cleaned the main connector on the driver's side, I have checked and cleaned the connector for the light on the TIPM and the connection behind the grill, I can't find any broken wires or short circuits anywhere.

I hope someone here can help me. I would really appreciate US support, as US drivers here in Germany unfortunately don't know much about electronics.

In the worst case scenario, it would be the PCM or TIPM???

Thanks in advance for your help and tips.
Best regards from Germany
Blazerman

 

[Dean2]

When did you last replace the battery. What is the Battery voltage, using a voltmeter not the gauge on the vehicle, after the vehicle sits over night? If it is less than 12.3, try charging it up, if it won't hold 12.3 or better, you need a new battery. Bad battery or low state of charge is the most common cause of multiple error messages at the same time.

 

[Blazerman]

The battery is from 2022 and I can charge it tonight and test the voltage.
Do you think I should unplug all devices and disconnect the battery?
I have a dashcam with parking monitoring installed, which would otherwise consume power all the time.

 

[Dean2]

The battery is from 2022 and I can charge it tonight and test the voltage.
Do you think I should unplug all devices and disconnect the battery?
I have a dashcam with parking monitoring installed, which would otherwise consume power all the time.

Leave it hooked up, the charger will have no problem with the little bit of draw. You have to wait a couple of hours after you take the charger off, to test the voltage. When you first remove the charger it should be 12.7 to 12.6, after a couple of hours it should still be at least 12.5, and it would be good to check it the next morning too. You want to find out how much it is drawing down over night.

 

[Blazerman]

Charger connected, voltage was 12.26

 

[Dean2]

Charger connected, voltage was 12.26

You have likely found your problem

 

[Blazerman]

Battery charged the whole night, voltage is now 12.80
I will check the voltage in the evening again, if the voltage goes down i will order a new battery.

Is it recommended to use an Optima Battery? If so, is it yellow or red?

 

[Dean2]

Just use a regular lead acid battery from Costco. The others don't last long enough to be worth two the three times the price.

 

[markabby]

i presume you checked the fuses as well...right?

 

[Wild one]

Just use a regular lead acid battery from Costco. The others don't last long enough to be worth two the three times the price.

His avatar shows him as being in Germany Dean. Do they have Costco's over there?

 

[RamDiver]

His avatar shows him as being in Germany Dean. Do they have Costco's over there?

According to what I have read, there are no brick & mortar Costco stores in Germany, only mail orders from the US online website.

Costco In Germany: Everything You Need To Know

Costco, the American membership-only big-box retailer, is hugely popular in the United States for its low prices on bulk items. But does Costco have any

www.solotravellerapp.com

Costco In Germany: Everything You Need To Know (2025)

Costco, the American membership-only big-box retailer, is hugely popular in the United States for its low prices on bulk items. But does Costco have any presence in Germany? If you’re wondering if you can shop at Costco stores and enjoy their famous food court while visiting or living in...

dhcustomdesigns.com

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[Blazerman]

Thank you for the Costo information.
To order a battery in Germany is no problem, a suitable battery costs around 100.

After 8 hours the voltage was reduced from 12.80 to 12.79
I don't think this is the problem, do you have any further tips or help?

 

[GeauxinUp]

Thank you for the Costo information.
To order a battery in Germany is no problem, a suitable battery costs around 100.

After 8 hours the voltage was reduced from 12.80 to 12.79
I don't think this is the problem, do you have any further tips or help?

The best way to test a battery is with a load tester.

 

[Blazerman]

i presume you checked the fuses as well...right?

Fuses and connections checked

 

[Blazerman]

After another 8 hours the voltage was reduced from 12.79 to 12.77, seems normal?

 

[RamDiver]

After another 8 hours the voltage was reduced from 12.79 to 12.77, seems normal?

That sounds great but the definitive test is to use a toaster-style battery load tester like the device shown above.

Then, there's no guessing.

They're very inexpensive in the USA ($18) and still cost effective in Canada at about 60% more than the US.

Battery Testing - Harbor Freight Tools

Analyze your car batteries condition with Battery Testers from Harbor Freight. Easy-to-use. Easy-to-carry. Durable design.

www.harborfreight.com

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[Blazerman]

I found and ordered exactly the same device on Amazon Germany, it's not expensive and it doesn't hurt to have it

 

[LouM]

As far as the advice to just get the old style open vented lead acid battery, HELL NO.
Get the AGM battery at a minimum the reduction in corrosion alone makes them worth while.

 

[Blazerman]

Like this one:

 

[RamDiver]

I found and ordered exactly the same device on Amazon Germany, it's not expensive and it doesn't hurt to have it

View attachment 566597

Bravo!
I've had a couple of these devices for many years. They don't get used too often, but they are invaluable to have available whenever there's a question about battery performance.

Like this one:

From what I can see, with your temperatures ranging from about 0°C to 23°C (32°F to 73°F), that looks like a good size, provided there aren't many aftermarket add-ons that draw current after the engine is shut off. Or, you haven't installed any high-power audio equipment.

An important feature of a battery is the warranty. I've seen up to 5 years for a full reimbursement, but typically, we see 3 years full coverage and then a sliding pro-rated scale after the 3 years for AGM batteries.

Another consideration for batteries is commute distance and the frequency of use. Intermittent use or frequent short distances will not lead to a long life.

For those situations, a battery maintainer or a low-current charger in the engine bay like this will help promote a longer life.

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