Passat Syncro Wagon V6-2.8L (ATQ) (2000)
Engine Control Module: Testing and Inspection
Engine Control Module (ECM) Voltage Supply, Checking
With Manufacturer's Scan Tool
Control Module Voltage Supply Check
Special tools and equipment
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V.A.G 1551 Scan Tool (or VAG 1552 mobile scan tool) with VAG 1551/3 cable
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VAG 1598/31 test box
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VAG 1526 multimeter or VAG 1715 multimeter
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VAG 1594 connector test kit
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Wiring diagram
Test requirements
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Battery voltage must be at least 11.5 volts.
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Fuse no.32 must be OK.
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Generator (GEN) must be working properly, testing:
Test sequence
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Connect V.A.G 1551 scan tool (VAG 1552). Start engine and select Engine Control Module (ECM) using address word 01. Refer to Scan Tool
Testing/Scan Tool Connecting and Initial Checks/Connecting V.A.G 1551 Scan Tool See: Testing and Inspection/Reading and Clearing
Diagnostic Trouble Codes/Scan Tool Connecting/With Manufacturer's Scan Tool/Connecting VAG 1551 Scan Tool
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. Press -Q- button to confirm input.
Indicated on display
Read Measuring Value Block
HELP
Input display group number XXX
-
Press 0, 0 and 4 for function "display group number 4", and then press Q to exit from input mode.
Indicated on display (1 - 4 = display fields)
Read Measuring Value Block 4
->
1
2
3
4