Passat Syncro Sedan V6-2771cc 2.8L DOHC (AHA) (1999)
Engine Control Module: Testing and Inspection
Engine Control Module (ECM) Voltage Supply, Checking
With Manufacturer's Scan Tool
Engine Control Module (ECM) voltage supply, checking
Special tools and equipment
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VAG1551 or VAG1552 Scan Tool (ST) with VAG1551/3 adapter cable
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VAG1598/22 test box
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Multimeter US1119 (Fluke 83 or equivalent)
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VW1594 connector test kit
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Wiring diagram
Checking conditions
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Fuse 32 OK
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Battery voltage: min. 11.5 volts
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All electrical consumers switched off (radiator coolant fan must not run during test)
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A/C switched off
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Automatic transmission selector lever in "P" or "N" position
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Alternator OK
Checking
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Connect VAG1551 or VAG1552 scan tool and press buttons -0- and -1- to insert "Engine Electronics" address word 01 (with engine running at
idle), See: Testing and Inspection
Indicated on display
Rapid data transfer
HELP
Select function XX
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Press buttons -0- and -8- to select "Read Measuring Value Block" function 08, and press -Q- button to confirm input.
Indicated on display
Read Measuring Value Block
HELP
Input display group number XXX
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Press buttons -0-, -0- and -4- to input display group number 4 (004), and press -Q- button to confirm input.
Indicated on display (1-4 = display fields)
Read Measuring Value Block 4
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