P1593 Error Code: Causes and Solutions

Translated on 12-10-2026, 5:09.

Hello,
I have a gasoline-powered car here, hopefully I'll still get an answer.

Here's the translation:

"Volkswagen Passat 3B, manufactured in 2000, with 170,000 km mileage, 1.8L engine, 125 HP, ADR compliant."

Jerks when accelerating. Fuel consumption: 10 liters.

Error code 18001, P1593: Altitude adaptation signal out of range.

I also had error code 16487 P 0103, which indicates a "Mass Air Flow Sensor Signal Too High". However, it cleared itself and hasn't reappeared.

Can someone tell me where the altitude signal comes from? Which sensor measures it?
Which technical data sheets (TDS) can I read?

Thank you for your replies.

Translated on 12-10-2026, 5:10.

Please post an auto-scan report, as this provides specific vehicle data and avoids having to make assumptions or give general answers.

http://wiki.ross-tech.com/wiki/index.php/18001/P1593/005523

http://wiki.ross-tech.com/wiki/index.php/16487/P0103/000259

Translated on 12-10-2026, 5:10.

Please also enter your VCDS license information in your profile!

Translated on 12-10-2026, 5:11.

Hello.

Unfortunately, I don't have a VCD or VAGCOM. I only have access to a VW tester occasionally.

Best regards,

Translated on 12-10-2026, 5:11.

You can also easily create and insert a diagnostic report here.