12 31 009 Checking alternator and regulator switch: Notes
Test requirements:
- Correct Connections On Charged Battery
- Correct Connections On Alternator And Starter Motor
- Good Ground Connection Between Engine And Body
- Tightened Drive Belt
Connect DIS Tester.
- Measurement
- Checking alternator
If charge indicator lamp is permanently lit:
Remove voltage regulator and check carbon brushes, replace if necessary.
NOTE:
Minimum length of carbon brushes "A" = 5 mm.
Replace alternator regulator switch, refer to 12 32 501 REPLACING VOLTAGE REGULATOR (VALEO/BOSCH) .
If charge indicator lamp goes out while engine is running:
Check control voltage, refer to ENGINE ELECTRICAL SYSTEM - TECHNICAL DATA .
Regulator switch must be replaced if control voltage is not achieved.
Replace alternator regulator switch, refer to 12 32 501 REPLACING VOLTAGE REGULATOR (VALEO/BOSCH) .