1103
B14 (Ambient temperature display temperature sensor) : Open circuit in wiring
Possible cause:
- B14 (Ambient temperature display temperature sensor)
- B2/5 (Hot film mass air flow sensor)
Affected functions:
- Engine output
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Test 1: Check component B2/5b1 (Intake air temperature sensor).
Test 2: Check component B14 (Ambient temperature display temperature sensor).
1. Check component B2/5b1 (Intake air temperature sensor).
Test 1.1: Check component B2/5b1 (Intake air temperature sensor) using actual value.
Test 1.2: Check plausibility of actual value B2/5b1 (Intake air temperature sensor) in control module ME 9.7.
Test 1.3: Check internal resistance of component B2/5b1 (Intake air temperature sensor).
1.1. Check component B2/5b1 (Intake air temperature sensor) using actual value.
Test prerequisites
- Switch off ignition.
- Leave vehicle with engine hood open for > 12 h.
Note
- The test prerequisites must be fulfilled for the test result to be meaningful.
Test sequence
- Switch on ignition.
Status of relevant actual value:
- Intake air temperature:Warning! Communication with ECU required.
