Golf GL L4-2.0L (AEG) (2001)
The display in display field 4 must change to Compr. ON.
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Press -> button.
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Press buttons -0- and -6- to select "End Output" function 06 and press -Q- button to confirm input.
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Switch ignition off.
Continuation
If the display does not change:
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Remove wiper arms and plenum chamber cover.
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Connect VAG1598/22 test box to control module wiring harness.
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Check wiring between test box sockets 8 + 10 and air conditioner for open circuit according to wiring diagram.
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Wire resistance: max. 1.5 ohms
If no malfunction can be found in the wiring:
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Check function of air conditioner control module.
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Check DTC memory. If necessary, repair any malfunctions and erase DTC memory.
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Display readiness code.
If DTC memory has been erased or the Engine Control Module (ECM) was disconnected from permanent battery (B+) voltage, the readiness code
must be generated again.