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      03-19-2022, 04:01 PM   #1
mikebattag
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Drives: 2013 BMW 328i xdrive
Join Date: Aug 2018
Location: CT

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2013 328i Drivetrain Malfunction and more

So I decided to take my car on a five hour road trip. On the way there towards the end I noticed the car to shake at low speeds, and drive smooth at high speeds, so I thought it might've just been the roads. On the way back, I was driving in eco pro and had to stop pretty abruptly driving off a short and very steep highway exit ramp. The car shut off from the auto start/stop function, and right when it turned back on, a warning came on the iDrive screen saying "Drivetrain malfunction drive moderately. maximum drivetrain output not available. consult service center."

I pulled over and turned the car off, and waited about ten minutes to turn the car back on. The warning did not come back up, and I drove the rest of the way (3 hours) in comfort mode without the warning coming on again.

When I got home I scanned the car and it threw a bunch of codes:
============1==============
CDA904
Raw code: CDA904
ECU: Engine control unit
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed, Test failed since last DTC clear

============2==============
123516
Raw code: 123516
ECU: Engine control unit[Archive (inactive)]
Status: Confirmed, Test failed since last DTC clear

============3==============
120408
Raw code: 120408
ECU: Engine control unit
Status: Pending, Confirmed, Test failed since last DTC clear

============4==============
801C20
Raw code: 801C20
ECU: CAN gateway
Status: Pending, Confirmed, Test not completed during this operation cycle

============5==============
481F8B
Raw code: 481F8B
ECU: TPMS
Status: Test failed, Pending, Confirmed, Test failed since last DTC clear, Test not completed during this operation cycle, Warning indicator requested

============6==============
481F8C
Raw code: 481F8C
ECU: TPMS
Status: Test failed, Pending, Confirmed, Test failed since last DTC clear, Test not completed during this operation cycle, Warning indicator requested

============7==============
481F8D
Raw code: 481F8D
ECU: TPMS
Status: Test failed, Pending, Confirmed, Test failed since last DTC clear, Test not completed during this operation cycle, Warning indicator requested

============8==============
481F8E
Raw code: 481F8E
ECU: TPMS
Status: Test failed, Pending, Confirmed, Test failed since last DTC clear, Test not completed during this operation cycle, Warning indicator requested

============9==============
B7F665
Raw code: B7F665
ECU: Dashboard/Instruments cluster[Archive (inactive)]
Status: Confirmed

============10==============
B7F30F
Raw code: B7F30F
ECU: Flexible bus interface
Status: Warning indicator requested

============11==============
B7F311
Raw code: B7F311
ECU: Flexible bus interface
Status: Warning indicator requested

============12==============
B7F313
Raw code: B7F313
ECU: Flexible bus interface
Status: Warning indicator requested

============13==============
B7F315
Raw code: B7F315
ECU: Flexible bus interface
Status: Warning indicator requested

============14==============
B7F316
Raw code: B7F316
ECU: Flexible bus interface
Status: Warning indicator requested

============15==============
B7F318
Raw code: B7F318
ECU: Flexible bus interface
Status: Warning indicator requested

============16==============
B7F319
Raw code: B7F319
ECU: Flexible bus interface
Status: Warning indicator requested

============17==============
B7F31A
Raw code: B7F31A
ECU: Flexible bus interface
Status: Warning indicator requested

============18==============
B7F322
Raw code: B7F322
ECU: Flexible bus interface
Status: Warning indicator requested

============19==============
B7F323
Raw code: B7F323
ECU: Flexible bus interface
Status: Warning indicator requested

============20==============
B7F8C6
Raw code: B7F8C6
ECU: Infotainment system[Archive (inactive)]
Status: Test failed since last DTC clear, Test not completed during this operation cycle

============21==============
E71448
Raw code: E71448
ECU: Climate/heater/Air conditioning
Status: Pending, Confirmed, Test failed since last DTC clear

My car has a stage 1 bootmod3 tune and a VRSF catless downpipe installed. The tune is set to deactivate the CEL from the downpipe.

The TPMS codes state that all of the sensors are bad, but I believe it to be the RDC module, not the sensors. I've been having this issue for months. Besides from the TPMS, I have no idea what any of the codes mean. I started looking each one up individually, but i don't know which ones are just from having the car tuned, and which ones are pointing at actual issues. The reason I scanned the car in the first place was to figure out what set off the drivetrain malfunction warning, but there are a lot of codes. can someone please help me figure out which ones are related to the drivetrain malfunction, and possibly what else I should look out for based on the codes that came back?
Any help is greatly appreciated, Thanks.
Appreciate 0
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bimmercode, bootmod3, drivetrain, drivetrain malfunction, malfunction, n20, tpm malfunction

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