Passat Sedan L4-1781cc 1.8L Turbo (AEB) (1999)
Engine Control Module: Testing and Inspection
Engine Control Module Voltage Supply, Checking
Engine Control Module
Checking Control Module Voltage supply
Special tools, testers, measuring instruments and auxiliary items required
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VAG 1551/1552 Scan Tool with
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VAG 1551/3B adaptor cable
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VAG 1598/22 Test Box
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Fluke 83 Multimeter
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VW 1594 Adaptor kit
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Wiring diagram
Check conditions
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Fuse 32 OK.
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Generator OK
Test sequence
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Connect VAG 1551/1552 Scan Tool, See: Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Scan Tool Connecting
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Switch ON ignition
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Press 0 and 1 buttons to select "Address word" 01 "Engine electronics"
Display will appear as shown
Rapid data transfer
HELP
Select function XX
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Press 0 and 8 buttons to select Function 08: "Read measuring value block"
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Press Q button to enter input
Display will appear as shown
Read measuring value block
HELP
Input Display group number XXX
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Press 0, 0 and 4 buttons to select "Display group 4"
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Press Q button to enter input
Display will appear as shown (1 to 4 = Display zones)
Read measuring value block 4
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