A4 Quattro Cabriolet V6-3.2L (BKH) (2007)
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Using a Multimeter, check the Throttle Drive (for Electronic Power Control (EPC)) G186 at the Throttle Valve Control Module J338 electrical
harness connector terminals 2 to 6 for voltage.
Specified value: at least 4.5 V
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Switch the ignition off.
If the specification was not obtained:
Checking wiring
If the manufacturers test box is being used. Perform the following step.
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Install the test box.
If the manufacturers test box is not being used. Perform the following step.
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Remove the Engine Control Module (ECM) J623.
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Using a Multimeter , check the Throttle Drive (for Electronic Power Control (EPC)) G186 at Throttle Valve Control Module J338 electrical
harness connector terminals to the Engine Control Module (ECM) J623 electrical harness connector T60 terminals for an open circuit.
Throttle Valve Control Module
Engine Control Module (ECM) J623
J338 electrical harness
electrical connector T60
connector terminals
terminals or test box socket
1
13
2
14
3
15
4
28
5
30
6
12
Specified value: 1.5 Ohms max.
If the specification was 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, lose 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 Engine Control Module (ECM) J623.