Passat Wagon L4-1781cc 1.8L DOHC Turbo (ATW) (2000)
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Connect VAG 1598/31 adapter cable to control module wiring harness. Engine Control Module (ECM) is not connected.
Checking voltage supply at terminal 30
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Use multimeter and adapter cables from VAG 1594 connector test kit to measure supply voltage between sockets 1 + 62 of test box: Specification:
at least 11.5 V
If specified value is not obtained:
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Check wire connections to relay carrier according to wiring diagram:
Checking voltage supply at terminal 15
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Use multimeter and adapter cables from VAG 1594 connector test kit to measure supply voltage between sockets 2 + 3 of test box:
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Switch ignition on. Specification: at least 11.5 V
If specified value is not obtained:
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Check wire connections to relay carrier according to wiring diagram.
Check voltage supply via main relay
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Use multimeter and adapter cables from VAG 1594 connector test kit to measure supply voltage between sockets 2 + 121 of test box:
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Switch ignition on. Specification: at least 11.5 V
If specified value is not obtained:
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Check wire connections to relay carrier according to wiring diagram:
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Check activation wire from Engine Control Module (ECM) pin 21 to voltage supply relay for Motronic Engine Control Module (ECM) voltage
supply relay -J271- according to wiring diagram.