Testing the signal at the regulator input
Note: The control unit is built into the dashboard light control.
1. Remove the switch panel from the dashboard.
2. Disconnect the 3-pin connector from the regulator.
1. 3-PIN CONNECTOR
2. RED
3. BLACK AND RED
4. BLACK
5. Connector «Mother» from the harness side
6. INSTRUMENT PANEL LIGHT CONTROL
3. Push the regulator out from behind the panel and remove it.
4. Check the connector pins to make sure they make good contact.
- If the contacts are bent, loose, or rusted, repair and recheck the system.
- If the pins look good, perform the following checks on the connector (table).
- If any of the checks indicate a problem, find and correct the cause, then recheck the system.
- If testing at the regulator inlet shows normal, the regulator must be faulty, replace it.