Checking Voltage Supply Terminal - Volkswagen Golf 1999 Service Manual

1.8 l turbo, 1.9 l tdi and pdi diesel. 2.0l gasoline, 2.8l vr6

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Motronic Engine Control Module (ECM) -J220-

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Checking voltage supply terminal 30

- 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:

- Check wiring to fuse holder and Ground (GND)

connection of Motronic Engine Control Module

(ECM) -J220- referring to Electrical Wiring

Electrical Wiring Diagrams, Troubleshooting &

Component Locations

- Check DTC memory, repair malfunctions if

necessary and then erase DTC memory

- Erase learned values and adapt Motronic

Engine Control Module (ECM) -J220- again

- Read readiness code

memory has been erased or Motronic Engine

Control Module (ECM) -J220- was disconnected

from battery positive (B+), readiness code must

be generated again

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