GTI V6-2.8L (BDF) (2002)
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Connect VAG 1598/31 test box to control module wiring harness. The Motronic Engine Control Module (ECM) -J220- remains disconnected.
Checking voltage supply terminal 30
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Measure supply voltage between sockets 1 and 62, and 2 and 62 of test box using multimeter and adapter cables from VAG 1594:
Specification: at least 11.5 V
If the specification is not obtained:
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Check wiring to fuse holder and ground (GND) connection of Motronic Engine Control Module (ECM) -J220- referring to Electrical Wiring
Diagrams:
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Check DTC memory, repair malfunctions if necessary and then erase DTC memory.
See: Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Reading Diagnostic Trouble Codes
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Erase learned values and adapt Motronic Engine Control Module (ECM) -J220- again.
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Read readiness code. If the DTC memory has been erased or the Motronic Engine Control Module (ECM) -J220- was disconnected from battery
positive (B+), the readiness code must be generated again.
See: Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes
See: Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes
Checking voltage supply terminal 15
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Measure supply voltage between test box sockets using multimeter and adapter cables from VAG 1594:
Sockets 1 and 3
Sockets 1 and 21
Sockets 2 and 3
Sockets 2 and 21
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Switch on ignition.
Specification: at least 11.5 V
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Switch off ignition.
If the specification is not obtained:
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Check wiring to fuse holder and ground (GND) connection of Motronic Engine Control Module (ECM) -J220- referring to Electrical Wiring
Diagrams:
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Check wiring to Motronic Engine Control Module (ECM) Power Supply Relay -J271- referring to Electrical Wiring Diagrams:
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Check DTC memory, repair malfunctions if necessary and then erase DTC memory.
See: Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Reading Diagnostic Trouble Codes
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Erase learned values and adapt Motronic Engine Control Module (ECM) -J220- again .
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Read readiness code. If the DTC memory has been erased or the Motronic Engine Control Module (ECM) -J220- was disconnected from battery
positive (B+), the readiness code must be generated again.
See: Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes
See: Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes
With Generic Scan Tool
Voltage Supply For Engine Control Module (ECM), Checking
Recommended special tools and equipment
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VAG1526 multimeter or VAG1715 multimeter
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VAG1594 connector test kit
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Wiring diagram
Test requirements