Coding the DME control unit

Various characteristic maps are integrated in the DME control unit in order to cover the different country-specific legislation and different vehicle types. These characteristic maps can be read directly in the „Actual value" menu with the system tester 9288.

928 607 421Porsche 964 Dme Coding Japan

In order to permit calling up of these characteristic maps, a 2-pin plug connection and a 3-pin plug connection are brought out of the DME wiring harness. These must be jumpered differently, depending on the country-specific version.

Transmission type/country

Transmissions code Terminal 54, 2-pin plug, black

Country code Terminal 39, 3-pin plug, white

TIPTRONIC-with catalytic converter except USA (whole) + Japan

Jumper to ground 944.612.525.01

USA (whole) + Japan

Jumper to ground 944.612.525.01

Jumper to battery voltage (+) 928.607.421.00

TIPTRONIC-

without catalytic converter

Jumper to ground 944.612.525.01

Jumper to ground

928.607.422.00

MANUAL TRANSMISSION with catalytic converter, except USA (whole) + Japan

open

open

MANUAL TRANSMISSION

USA (whole) + Japan

open

Jumper to battery voltage (+) 928.607.421.00

MANUAL TRANSMISSION without catalytic converter

open

Jumper to ground 928.607.422.00

As from model year '91, the code for California and Japan is beeing deleted (identical worldwide).

As from model year '91, the code for California and Japan is beeing deleted (identical worldwide).

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