[8] Check component B28/8 (Pressure differential sensor (DPF)).: Offset drift TOO HIGH

[8] Check component B28/8 (Pressure differential sensor (DPF)).: Offset drift TOO HIGH

Test 1: Check component B28/8 (Pressure differential sensor (DPF)).

1. Check component B28/8 (Pressure differential sensor (DPF)).
Offset of component B28/8 (Pressure differential sensor (DPF)): Test
Test prerequisite

- Ignition ON
- The air extractor system may not be connected to the exhaust system during the test.
Status of the relevant actual values:
- Coolant temperature:Warning! Communication with ECU required.

- Differential pressure Signal voltage:Warning! Communication with ECU required.
Specified value at coolant temperature between 10 °C and 85 °C

- Differential pressure Signal voltage464...682 mV
Specified value at coolant temperature < 10 °C or > 85 °C

- Differential pressure Signal voltage428...718 mV
Question

- Is the actual value o.k.?


YES
The actual value is okay.Figure legend

- B28/8 (Pressure differential sensor (DPF))
Further procedure

- Test wiring and plug connections between control module N3/9 (CDI control unit) and B28/8 (Pressure differential sensor (DPF)) for Loose contact, repair or replace if necessary.
End of test







NO
The measurement value is not OK.Possible cause and remedy

- If fault occurs again:
- Sensor 'B28/8 (Pressure differential sensor (DPF))' is faulty.
- Replace component B28/8 (Pressure differential sensor (DPF)).
End of test