Jetta L4-2.0L (BEV) (2004)
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Check wires between test box and 8-pin connector for open circuit according to wiring diagram.
Vehicles with cruise control:
Terminal 1 + socket 74
Terminal 2 + socket 67
Terminal 4 + socket 75
Terminal 5 + socket 62
Terminal 6 + socket 69
Terminal 7 + socket 59
Terminal 8 + socket 66
Wire resistance: max. 1.5 Ohms
Vehicles without cruise control:
Terminal 1 + socket 66
Terminal 2 + socket 59
Terminal 3 + socket 69
Terminal 4 + socket 62
Terminal 5 + socket 75
Terminal 7 + socket 67
Terminal 8 + socket 74
Wire resistance: max. 1.5 Ohms
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Check wires for short circuit to each other, to vehicle Ground (GND) and to B+.
Specified value: Infinite Ohms
If no malfunctions are found in wires:
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Check voltage supply of Engine Control Module (ECM). See: Engine Control Module/Testing and Inspection/Component Tests and General
Diagnostics
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Erase DTC memory of Engine Control Module (ECM), Diagnostic mode 4: Reset/erase diagnostic data. See: Testing and Inspection/Scan Tool
Testing and Procedures/With Generic Scan Tool/Diagnostic Mode 4: Reset/Erase Diagnostic Data
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Generate readiness code. See: Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes.
Vehicles with engine code AVH, AZG, BBW, BEV (121-pin ECM)
Function
The throttle valve activation occurs via an electric motor (throttle drive) in the throttle valve control module. It is activated by the Engine Control
Module (ECM) according to specifications of the two sensors, Throttle Position (TP) sensor -G79- and Sender 2 for accelerator pedal position -G185-,
function of the EPC system.
Components of Throttle valve control module -J338-:
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Throttle drive (power accelerator actuation) -G186-
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Angle sensor 1 for throttle drive (power accelerator actuation) -G187-
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Angle sensor 2 for throttle drive (power accelerator actuation) -G188-
Function test
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Connect diagnostic tester. See: Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Scan Tool Connecting/Diagnostic Tester,
Connecting
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Switch ignition on.
