Jetta L4-2.0L (AEG) (2000)
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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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Turn off ignition.
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Check voltage supply of throttle valve control module and wiring to control module.
If the voltage supply and wiring is OK:
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Replace Engine Control Module (ECM).
Continuation of check when display constantly shows idling
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Disconnect 8-pin harness connector from throttle valve control module.
If display jumps to part throttle:
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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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Turn off ignition.
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Replace throttle valve control module -J338-. Refer to item -14- in "Upper Section, Disassembling and Assembling" under "Engine/Intake
Manifold". See: Engine, Cooling and Exhaust/Engine/Intake Manifold
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Check DTC memory. If necessary, repair any malfunctions and erase DTC memory.
See: Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Reading Diagnostic Trouble Codes
See: Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Clearing Diagnostic Trouble Codes
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Adapt Engine Control Module (ECM) to throttle valve control module.
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Display readiness code. See: Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes
If DTC memory has been erased or the Engine Control Module (ECM) was disconnected from battery (B+) voltage, generate the readiness code
again. See: Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes
If display remains on part throttle:
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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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Turn off ignition.
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Check voltage supply of throttle valve control module and wiring to control module.
If the voltage supply and wiring is OK:
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Replace Engine Control Module (ECM).
Checking throttle drive (power accelerator actuation) -G186- and angle sensor -1- for for throttle drive (power accelerator actuation) -G187-
Test requirements
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Min. coolant temp. 85 °C See display group 004, display field 3
Test sequence
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Connect V.A.G1551 (VAG1552) Scan Tool (ST).
See: Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Reading Diagnostic Trouble Codes
See: Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Clearing Diagnostic Trouble Codes
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With engine idling, switch ignition on and press buttons -0- and -1- to insert "Engine Electronics" address word 01.
Indicated on display
Rapid data transfer
HELP
Select function XX
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Press buttons -0- and -8- to select "Read Measuring Value Block" function 08 and press -Q- button to confirm input.
Indicated on display
Read Measuring Value Block
Input display group number XXX
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Press buttons -0-, -6- and -0- to input display group number 60 (060) and press -Q- button to confirm input.
Indicated on display: (1-4 = display fields)