my check engine lights up

[iceman600]

I got 2020 3.0 stock and my CE lit up. I scanned it and this is what I got. Does anyone have the same code that can give me advice on what I'm dealing with here?

- DME active codes -
135A08 - Valvetronic servomotor position sensors, signal: Not plausible.
190302 - Diagnostic module for tank leaks (NVLD), fuel tank ventilation system, micro-leak greater than 0.5 mm detected.
21B055 - Upper radiator shutter: Internal communication fault.
21B056 - Lower radiator shutter: Internal communication fault.
CD990B - Message (request, rear axle speed, 69.3.4) missing, receiver DME, transmitter DSC.
CD990E - Message (front axle speed request, 69.3.4) missing, receiver DME, transmitter DSC.

- DME shadow (inactive) codes -
11B401 - High pressure fuel: Pressure too low at or after engine start.
11B501 - High pressure fuel: Pressure too low after engine start.
135501 - Valvetronic: Output stage overloaded (warning threshold value for overload protection exceeded).
1A400B - Electric fan, function: Switched off.
21A026 - Combustion engine: Abnormal ignition key or automatic engine start-stop function start detected.
24000B - EWS-DME interface Timeout.

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[Davidr3]

Check your gas cap first? That’s my first thought with the tank leak code. How many miles?

I think that 190302 code is the culprit

 

[iceman600]

Check your gas cap first? That’s my first thought with the tank leak code. How many miles?

I did check my gas cap... closed it tight and CE is still on. The car is 25k miles now

 

[lucky phil]

How is your battery? Modern electronic can go a little crazy with a low battery state of charge or a failing battery or a loose battery connection.

Phil

 

[Sereph102889]

I did check my gas cap... closed it tight and CE is still on. The car is 25k miles now

11B401 - High pressure fuel: Pressure too low at or after engine start.
11B501 - High pressure fuel: Pressure too low after engine start.
135501 - Valvetronic: Output stage overloaded (warning threshold value for overload protection exceeded).
1A400B - Electric fan, function: Switched off.
21A026 - Combustion engine: Abnormal ignition key or automatic engine start-stop function start detected.
24000B - EWS-DME interface Timeout.

I had all of the above error messages as well recently, and so much more. On top of all of the above, I was getting "Drivetrain malfunction, Chassis Stabilization Malfunction, and all kind of other Malfunction error messages popping up on the i-Drive system as well. I would highly suggest you to check your battery voltage AND your positive/negative terminal connections, including the post that's in the engine bay. My battery connection inside if the engine bay was so loose that it fell off in my hand when I put a wrench on it and it ended up being my fault. I installed an Ethanol Analyzer over a year prior and apparently didn't tighten that post back down well enough.

 

[iceman600]

How is your battery? Modern electronic can go a little crazy with a low battery state of charge or a failing battery or a loose battery connection.

Phil

How can i check the state of the battery? I dont think connection is loose coz it starts normally when press the ignition start

 

[lucky phil]

How can i check the state of the battery? I dont think connection is loose coz it starts normally when press the ignition start

This is what I use every 6 months on all my vehicles (3 cars and 5 bikes) Modern automotive systems aren't like the days of past where the battery gave you a lot of warning when it was getting close to end of life such as slow cranking etc. Now the ecu has a threshold voltage that it shuts the system down entirely if it fall below this figure, generally around 10.5 volts. However the system can initiate on opening/starting the car above the threshold but when the load hits and it drops below the system goes into a bit of a crisis situation and throws up all sorts of crazy faults. This is common on Fords and has happened to me on our DD. Fortunately I was aware of the issue and just simply replaced the battery and reset the BCM and all good. I have also heard from a toyota tech that the Supras tend to have battery issues mainly because they aren't driven as DD's. Because of this I now regularly check that the battery is still ok under load, a voltage check alone won't necessarily give a good indication of battery load capacity. This unit will.
Phil
https://www.walmart.com/ip/ANCEL-BA...nking-and-Charging-System-Test-Tool/540466227

 

[zrk]

Unplug the battery for 10 minutes.

 

[iceman600]

This is what I use every 6 months on all my vehicles (3 cars and 5 bikes) Modern automotive systems aren't like the days of past where the battery gave you a lot of warning when it was getting close to end of life such as slow cranking etc. Now the ecu has a threshold voltage that it shuts the system down entirely if it fall below this figure, generally around 10.5 volts. However the system can initiate on opening/starting the car above the threshold but when the load hits and it drops below the system goes into a bit of a crisis situation and throws up all sorts of crazy faults. This is common on Fords and has happened to me on our DD. Fortunately I was aware of the issue and just simply replaced the battery and reset the BCM and all good. I have also heard from a toyota tech that the Supras tend to have battery issues mainly because they aren't driven as DD's. Because of this I now regularly check that the battery is still ok under load, a voltage check alone won't necessarily give a good indication of battery load capacity. This unit will.
Phil
https://www.walmart.com/ip/ANCEL-BA...nking-and-Charging-System-Test-Tool/540466227

thank you for this... i will definitely get one

 

[iceman600]

Unplug the battery for 10 minutes.

i will try this... ty.

 

[Mr. Jonathan]

@iceman600 Did this get resolved? Which suggestion worked. I received 21B056/21B055 among others this morning after installing an AA Catted DP lastnight.

 

[Mr. Jonathan]

@zrk Should you clear the codes before disconnecting the battery for 10 mins?

 

[zrk]

@zrk Should you clear the codes before disconnecting the battery for 10 mins?

Can't hurt.

 

[iceman600]

@iceman600 Did this get resolved? Which suggestion worked. I received 21B056/21B055 among others this morning after installing an AA Catted DP lastnight.

I cleared the codes... fortunately its not coming back so fingers crossed.

 

[another_red_supra]

I have this same code:
190302 - Diagnostic module for tank leaks (NVLD), fuel tank ventilation system, micro-leak greater than 0.5 mm detected.

This code only. Nothing else. I did change the purge/breather valve.
Still have this code.
Sometimes i have rough idle on cold start.

I might change the gas cap next. If it doesn't work, i'll change the NVLD sensor i guess.

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