A3 Quattro V6-3.2L (BUB) (2008)
Checking wiring
If the manufacturers test box is being used. Perform the following step.
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Install the test box. (test box) at Engine Control Module.
If the manufacturers test box is not being used. Perform the following step.
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Remove the Motronic Engine Control Module (ECM) J220.
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Using a Multimeter, check the Secondary Air Injection (AIR) Pump Relay -J299- socket 2/24 to the Motronic Engine Control Module (ECM)
J220 electrical harness connector T121 terminal 46 for resistance.
Secondary Air Injection (AIR)
Motronic Engine Control Module
Pump Relay -J299- socket terminal
(ECM) J220 electrical connector T94 terminal or test box socket
2/24
46
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 found in the wiring and voltage supply was OK:
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Replace the Secondary Air Injection (AIR) Pump Relay -J299-.
If no malfunction is found in the wiring and voltage supply was not OK:
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Replace the Motronic Engine Control Module (ECM) J220.
Final procedures
After 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
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End of diagnosis