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.
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HOMESERVICE MANUALSVOLKSWAGEN1999JETTA SEDAN (9M2) V6-2.8L (AFP)REPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGTESTING AND INSPECTIONSCAN TOOL TESTING AND PROCEDURESMEASURING VALUE BLOCKS (FUNCTION 08)
1999 Volkswagen Jetta Sedan (9M2) V6-2.8L (AFP)
Measuring Value Blocks (Function 08)
1999 Volkswagen Jetta Sedan (9M2) V6-2.8L (AFP)SECTION Measuring Value Blocks (Function 08)
NOTES:
- During the function Read measuring value block, the Climatronic regulation is in operation.
- 8 display group numbers display up to 4 measuring values each.
- To safely read measuring values while driving, an assistant is required.
- Connect VAG 1551 Scan Tool (ST) and enter address word "08 AC/Heating electronics" and then press -> button, until "Select function XX" is shown in display. Connecting VAG 1551
Indicated on display (function selection):
Rapid data transfer HELP
Select function XX
- Press buttons -0- and -8- to select function 08 Read measuring value block.
Indicated on display:
Rapid data transfer Q
08 - Read measuring value block
- Press -Q- button to confirm entry.
Indicated on display:
Read measuring value block
Enter display group number XXX
- Using the 1551 button pad, enter the required display group number following example shows display group 001).
Indicated on display:
Read measuring value block Q
Enter display group number 001
- Press -Q- button to confirm entry.
Indicated on display:
Read measuring value block 1 ->
1 2 3 4
NOTES:
- Interpreting measured values in individual display fields See "Table of selectable display group numbers" below.
- With the printer is switched on, the information on the display will be printed out.
- After completing the Read measuring value block function, check DTC memory. Displaying and Reading Trouble Codes
- If measured value specifications are met in all display fields:
- Press -> button.
Indicated on display (function selection):
Rapid data transfer HELP
Select function XX
NOTE: To easily change between display groups, proceed as follows:
Tables of selectable display group numbers
RENDER: 1.0x
NO RELATED
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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.