TT Quattro Roadster V6-3.2L (BHE) (2005)
specified value: 1.5 Ohms
If the specified value was not obtained:
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Check the Motronic Engine Control Module (ECM) Power Supply Relay J271 socket 5/85 to the Motronic Engine Control Module (ECM) J220
electrical harness connector terminal 23 for an open circuit or a short to Battery (+).
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Check the electrical harness connector for damage, corrosion, loose or broken terminals.
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If necessary, repair the wiring connection.
If no malfunctions are found in the wiring and the voltage supply was OK:
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Replace the Motronic Engine Control Module (ECM) Power Supply Relay J271.
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Perform a road test to verify repair.
If the fault does not return:
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Repair complete, Generate readiness code. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Initial
Inspection and Diagnostic Overview/Readiness Code
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End diagnosis.
If the fault does return and no malfunction is detected in the wiring and the voltage supply was OK:
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Replace the Motronic Engine Control Module (ECM) J220.
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Assembly is performed in the reverse of the removal.
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.
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End diagnosis.