- Check internal resistance of component B2/5b1 (Intake air temperature sensor).
1.2.2. Check plausibility of actual value B2/5b1 (Intake air temperature sensor) in control module ME 9.7.
Image legends
- Picture1
- B2/5 (Hot film mass air flow sensor)
- Connector (5-pin)
- Picture2
- B2/5 (Hot film mass air flow sensor)
- Connector (4-pin)
Test prerequisite
- The actual value is not o.k.
Test sequence
- Detach coupling at component B2/5 (Hot film mass air flow sensor).
- Switch on ignition.
Status of relevant actual value:
- Intake air temperature:Warning! Communication with ECU required.
Specified value
- If the connector is unplugged at component B2/5b1 (Intake air temperature sensor), value [ -40锟斤拷 C ] is displayed.
- Bridge pin 2 in pin 3 at the unplugged connection of component B2/5b1 (Intake air temperature sensor).The value is approx. [ 150锟斤拷 C ] for a
short period of time and drops back down to the substitute value of approx. [ -40锟斤拷 C ].
Question
- Is the actual value o.k.?
