Golf GL L4-2.0L (AZG) (2001)
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Slowly depress accelerator pedal up to Wide Open Throttle (WOT) stop while observing the percentage display. The percentage display must
increase uniformly.
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Check specified value of throttle valve position (absolute) at Wide Open Throttle (WOT) stop:
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End diagnosis and switch ignition off.
If specified values are not obtained:
Check resistance
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Connect test box to control module wiring harness, connect test box for wiring test. See: Testing and Inspection/Reading and Clearing Diagnostic
Trouble Codes/Scan Tool Connecting/With Generic Scan Tool/Test Box, Connecting For Wiring Test
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Measure resistance of Throttle drive (power accelerator actuation) -G186- between test box sockets 117 + 118.
Specified value: 1,0 ... 5,0 Ohms
If specified value is not obtained:
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Replace Throttle Valve Control Module -J338-, item 13.
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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
If specified value is obtained:
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Check voltage supply of throttle valve control module and wiring to control module.
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Check Throttle Position (TP) Sensor -G79- and Sensor 2 for accelerator pedal position -G185-. See: Testing and Inspection/Component Tests and
General Diagnostics/Throttle Position (TP) Sensor, Checking
If voltage supply and wires are OK:
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Replace Motronic Engine Control Module (ECM) -J220-.
Checking voltage supply and wiring to control module
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Connector connected at Engine Control Module (ECM).