Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSVOLKSWAGEN2000GTI (1J1) L4-1.8L TURBO (AWD)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSINFORMATION BUSTESTING AND INSPECTIONSCAN TOOL TESTING AND PROCEDURESMEASURING VALUE BLOCKS (FUNCTION 08)READING
2000 Volkswagen GTI (1J1) L4-1.8L Turbo (AWD)
Reading
2000 Volkswagen GTI (1J1) L4-1.8L Turbo (AWD)SECTION Reading
Read Measuring Value Block (function 08)
Use this function to observe status of communication between control modules via the Powertrain CAN Bus..
The measuring value block is divided into 2 display groups, each containing 4 display fields.
- Connect VAG 1551, select operating mode 1 "Rapid data transfer", switch on ignition and enter address word 17 "instrument cluster".
- Press -Q- button to confirm input.
- Press -> button until "Select function"is displayed.
Indicated on display:
Rapid data transfer HELP
Select function XX
- Press buttons -0- and -8- to select "Read Measuring Value Block" function 08.
Indicated on display:
Rapid data transfer Q
08 - Read Measuring Value Block
- Press -Q- button to confirm input.
Indicated on display:
Read Measuring Value Block HELP
Enter display group number XXX
- Using the Scan Tool (ST) button pad, enter the required display group number (following example shows display group 001).
- Press -Q- button to confirm input.
Indicated on display: (1...4 = Display fields)
Read Measuring Value Block 1 ->
1 2 3 4
- Displayed after pressing C button.
Indicated on display:
Read Measuring Value Block HELP
Enter display group number XXX
- Enter alternate display group number as needed See tables beginning, Interpreting Display Groups
NOTE:
- Display fields always show actual values transmitted from senders and sensors. However, instrument cluster display values can differ from those in the display fields due to internal filtering.
- Other display groups are possible, but are not required for On Board Diagnostic program!
- Display fields in display groups 125 and 126 provides the CAN-Bus function status codes of various control modules connected to the "Powertrain" CAN-Bus network.
- If a vehicle is not equipped with control module(s) listed in the following display groups, the applicable display field remains blank. Check correct coding of CAN-Bus On Board Diagnostic (OBD) interface -J533-. Programming and Relearning
- Display field content differs between VDO and MMO instrument clusters!
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.