- Fast data exchange HELP
- Dial function XX
2. Press "08" to select the "Read Block of Measured Values" function and confirm with the "Q" button. The display should show the following information:
- Reading the measured value block HELP
- Enter group number XX
3. Press "007" to select the "Display Group 007" function and press "Q". The display should show the following information:
Reading block of measured values 7 → 15.9°C 16.7°C
4. If field 3 does not display the actual temperature or it is replaced with a temperature of 134°C, check the sensor and the wires going to it. Click "→".
5. Press "06" to select the "Quick Data Exchange" function and confirm by pressing the "Q" button.
6. Turn off the ignition.
7. Disconnect the wiring connector from the sensor (figure 4A.16). Measure the resistance between contacts 1 and 2 of the sensor.
Figure 4A.16. Disconnect the wiring connector from the sensor and measure the resistance between contacts 1 and 2 of the sensor.
[The original article is available at: VWmanual.ru]
8. The set resistance value is shown in the figure 4A.14. Area A shows the resistance in the temperature range of 0-50°C, area B shows the resistance in the temperature range of 50-100°C. For example, a temperature of 30°C corresponds to a resistance of 1500-2000 ohms; a temperature of 80°C corresponds to a resistance of 275-375 Ohms.
9. If the set value is not achieved, replace the sensor.
10. If the specified value is reached, connect the VAG 1598/30 tester to the engine control unit wiring harness. Check the wires between the tester and the connector for continuity: pin 1 + socket 3/16, pin 2 + socket 3/29 (figure 4A.17).
Figure 4A.17. Intake manifold temperature sensor connector.
Specified value: max 1.5 ohm.
11. Check the connector wires for a short to the positive or negative battery terminal. Set value: ∞ Ohm.
12. If no fault is found in the wires, then replace the CDL injection system control unit
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