Passat Sedan 4Motion V6-2.8L (ATQ) (2003)
Camshaft: Testing and Inspection
Camshaft adjustment, checking
Test sequence
Engine code: ATQ
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Connect VAG1551 Scan Tool (ST) (or VAG1552). Start engine and select Engine Control Module (ECU) using "address word" 01.
Refer to Powertrain Management - Computers and Control Systems - Testing and Inspection - Procedures See: Powertrain
Management/Computers and Control Systems/Testing and Inspection/Scan Tool Testing and Procedures/With Manufacturer's Scan Tool/Output
Diagnostic Test Mode (DTM), (Function 03)
Indicated on Display
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Press buttons -0- and -8- to select function "Read Measuring Value Block" and press -Q- button to confirm input.
Indicated on Display
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Press buttons -0-, -9- and -1- to select "display group number 91" and press -Q button to confirm input.
Indicated on Display: (1 to 4 = display fields)
This measuring value block is valid for camshaft adjustment, cylinder bank 1:
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Observe indication in display field 3.
Specification: CAM-ADJ. OFF
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Accelerate vehicle in 1st gear from standstill.
With engine speed between 2000 and 5100 RPM (display field 1) and engine load above 58.0% (display field 2), camshaft adjustment must be active.
Specification (display field 3): CAM-ADJ. ON