Beetle L4-1781cc 1.8L Turbo (APH) (1999)
Accelerator Pedal Position Sensor: Testing and Inspection
Accelerator Pedal Position Sensor, Checking
Special tools and equipment
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V.A.G 1526 Hand multimeter
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Scan tool V.A.G 1551 or vehicle system tester V.A.G 1552 with cable V.A.G 1551/3
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V.A.G 1594 A Adapter set
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V.A.G 1598/22 Test box
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Current flow diagram
Function
Both sensors for accelerator pedal position -G79- and -G185- are located at the accelerator pedal and communicated the driver's intentions to the Engine
Control Module (ECM) fully independently of each other. Both sensors are located in one housing.
Test sequence
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Connect scan tool V.A.G 1551 (V.A.G 1552) and with ignition switched on select engine electronics control unit with the "Address word" 01.
Indicated on display
Rapid data transfer
HELP
Select function XX
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Press keys 0 and 8 for the function "Read Measured Value Block" and confirm entry with Q key.