Golf GLS L4-2.0L (AVH) (2002)
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Engine Speed Sensor: Testing and Inspection
Engine Speed Signal, Checking
Engine Speed Signal, Checking
Special tools and equipment
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VAG 1551 scan tool or 1552 scan tool with cable VAG 1551/3
Check conditions
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Speedometer must be OK., checking speedometer:
Test sequence
NOTE:
To check the speed signal the vehicle must be driven. To do this a second person is necessary.
WARNING! Secure scan tool to rear seat and operate from this position.
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Connect V.A.G 1551 scan tool ((VAG 1552). Start engine and select "Address word" 01 of engine control module. When doing this the engine
must be running at idling speed. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Reading and Clearing
Diagnostic Trouble Codes/Scan Tool Connecting
Indicated on display:
Rapid data transfer
HELP
Select function XX
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Press keys 0 and 8 for the function "Read measuring value block" and confirm entry with Q key.
Indicated on display:
Read measuring value block
Input display group number XXX
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Press keys 0, 0 and 5 for "Display group number 5" and confirm entry with Q key.
Indicated on display: (1 to 4 = Display zones)
Read measuring value block 5
->
1
2
3
4
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Carry out test drive with a 2nd person to observe display.
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Observe figure displayed in display zone 3:
Specification: approx. driven speed
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Press the -> key.
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Press keys 0 and 6 for the "End output" function and confirm input with the Q key.
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Switch off ignition.
If no speed is displayed:
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Check wiring to speedometer/speedometer sender.
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Check DTC memory, if necessary, repair any faults and then erase DTC memory, checking and erasing DTC memory.
See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Reading
Diagnostic Trouble Codes
See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Clearing
Diagnostic Trouble Codes
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Check drive train data bus.
