car exploding electronics going nuts idk what to do cant drive it

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12-29-2013, 12:31 PM

jbenns45

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car exploding electronics going nuts idk what to do cant drive it

so driving down the road slowly and suddenly rpm gauge drops to 0 and starts jumping from 0 - actual rapidly. then hell breaks loose abs light, traction, cel, oil pressure, prnds, lights all go on. radiator fans start going on and off randomly it stalls intermittently and the car would barely move when i hit the gas

im at a loss for words, i checked the ecu case and its bone dry, passenger floor carpet is dry too

heres a scan of the engine:

thanks for any help or ideas

10 Faults Found:
17887 - Brake Boost Vacuum System: Mechanical Failure
P1479 - 008 - Implausible Signal - Intermittent
18107 - Powertrain Data Bus: Missing Message from Steering Wheel Electronics
P1699 - 008 - Implausible Signal - Intermittent
18056 - Powertrain Data Bus: Failure
P1648 - 004 - No Signal/Communication - Intermittent
18034 - Powertrain Data Bus: Missing Message from TCU
P1626 - 004 - No Signal/Communication - Intermittent
18036 - Powertrain Data Bus: Missing Message from Steering Angle Sensor
P1628 - 008 - Implausible Signal - Intermittent
18057 - Powertrain Data Bus: Missing Message from ABS Controller
P1649 - 008 - Implausible Signal - Intermittent
18043 - Powertrain Data Bus: Missing Message from A/C Controller
P1635 - 008 - Implausible Signal - Intermittent
18058 - Powertrain Data Bus: Missing Message from Instrument Cluster
P1650 - 004 - No Signal/Communication - Intermittent
18010 - Power Supply Terminal 30: Voltage too Low
P1602 - 002 - Lower Limit Exceeded - Intermittent
18032 - MIL Request Signal Active (Check TCM for errors too!)
P1624 - 008 - Implausible Signal - Intermittent

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02-12-2018, 01:36 PM

Rexford Welbeck

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same issue

Quote:

Originally Posted by jbenns45

does anyone has a solution to this I'm having the same issue please

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02-13-2018, 02:19 PM

Rexford Welbeck

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any feedback

Quote:

Originally Posted by jbenns45

Quote:

Originally Posted by Rexford Welbeck

does anyone has a solution to this I'm having the same issue please

wanted to know if there is any help on this please

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02-16-2018, 07:19 AM

AudiAllTheWay

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Check alternator is working and battery is good. Is the instrument cluster battery gauge reading ~14V with engine running? Measure battery with volt meter as it should read 12V with ignition off and near 14V at idle.

Can you connect to the modules listed in your scan or are they inaccessible with VAG-COM? If not then check fuses.

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07-11-2018, 07:43 AM

THEWIDOWSON8

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I second the low power diagnosis.

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07-16-2018, 01:00 AM

jbenns45

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Solution

Hi everyone, sorry for the delay but I did end up solving the problem. Checked alternator w/ load testers, battery, all grounds and terminals. All connections and literally found nothing that would trigger the problem.

Ended up being the cheap LED license plate lights I installed. Apparently the low quality Chinese bulbs put out a sine wave that directly interfered with the data bus and caused total loss of communication between modules. The burn out sensor wire brought it straight to the module and that caused a whole bus failure.

if anyone else has these symptoms make sure there are no LEDs or cheap HIDs in the car

-josh

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