Manufacturer Code Charts: 2670

[8] Monitoring of the temperature sensors: The values for the intake air and outside air temperature are implausible.

Test 1: Check actual value Intake air temperature. Plausibility

1. Check actual value Intake air temperature. Plausibility
Test prerequisite

- Switch on ignition.
Status of the relevant actual values:
- Intake air temperature Left:Warning! Communication with ECU required.

- Intake air temperature Right:Warning! Communication with ECU required.

- Ambient temperature:Warning! Communication with ECU required.
Specified value

- The actual values must be plausible.
- Temperature difference +/- [ 60° C ]
Note

- If a stationary heater is installed, the temperature values can be far apart without a malfunction being present.
Question

- Are the actual values o.k.?


YES
The actual values are okay.Further procedure

- In the event of stored faults with a high fault frequency count or in the event of customer complaints, check lines and connectors for loose contact and corrosion..
End of test

NO
The actual values are not plausible.Possible cause and remedy

- Replace component if its value is implausible.
End of test