A3 L4-2.0L Turbo (CBFA) (2008)
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Using a multimeter, check the Throttle Position (TP) Sensor G79 / Accelerator Pedal Position Sensor 2 G185 electrical harness connector
terminals to the Motronic Engine Control Module (ECM) J623 electrical connector T94 for an open circuit.
Throttle Position (TP)
Motronic Engine Control Module
Sensor G79/Accelerator Pedal
(ECM) J623 electrical connector
Position Sensor 2 G185
T94 terminals or test box
electrical harness connector
sockets
terminals
1
81
2
82
3
35
4
83
5
11
6
61
Specified value: 1.5 Ohms max.
If the specification is not obtained:
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Check the wiring for a short circuit to each other, Battery (+), and Ground (GND).
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Check the electrical harness connector for damage, corrosion, loose or broken terminals.
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If necessary, repair the faulty wiring connection.
If no malfunction is detected in the wiring and if the voltage supply was OK:
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Replace the Throttle Position (TP) Sensor G79 / Accelerator Pedal Position Sensor 2 G185.
If no malfunction is detected in the wiring and if the voltage supply was not OK:
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Replace the Motronic Engine Control Module (ECM) J623.
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Install the drivers side storage compartment.
Final procedures
After the repair work, the following work steps must be performed in the following sequence:
1. Check the DTC memory. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Scan Tool Testing and
Procedures/Diagnostic Mode 03 - Read DTC Memory
2. If necessary, erase the DTC memory. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Scan Tool Testing
and Procedures/Diagnostic Mode 04 - Erase DTC Memory
3. If the DTC memory was erased, generate readiness code. See: Powertrain Management/Computers and Control Systems/Testing and
Inspection/Monitors, Trips, Drive Cycles and Readiness Codes