Jetta L4-1.8L Turbo (AWP) (2004)
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Connect VAG1598/31 test box to control module wiring harness. Engine control module remains disconnected.
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Check wiring for open circuit between test box sockets 40 + 41 and air conditioner system using wiring diagram.
Wire resistance: max. 1.5 Ohm
If no fault 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 then Erase DTC Memory, Checking and Erasing DTC Memory. Refer to
"Displaying and Reading Trouble Codes/With Manufacturer's Scan Tool/Erase DTC Memory (Function 05)" See: Testing and Inspection/Reading
and Clearing Diagnostic Trouble Codes/Reading Diagnostic Trouble Codes/With Manufacturer's Scan Tool/DTC Memory Checking and
Erasing/Erase DTC Memory (Function 05)
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Read readiness code. If DTC memory has been erased or engine control module was disconnected from permanent positive, readiness code must
be generated again: Refer to "Monitors, Trips and/or Drive Cycle (Readiness Codes)/With Manufacturer's Scan Tool/Displaying and Creating
Readiness Codes/Readiness Code, Reading" See: Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes
Engine code AWP, Refer to "Monitors, Trips and/or Drive Cycle (Readiness Codes)/With Manufacturer's Scan Tool/Displaying and Creating
Readiness Codes/ Readiness Code, Generating" See: Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes