- Type: Valeo A 11 VI 87.
- Nominal output current: 75 A.
Diagnostics
After 15 minutes of warming up (at steady state) at a voltage of 13.5 V at the terminals.
Table 3.9
These vehicles are equipped with internally ventilated alternators, a built-in voltage regulator and a warning light in the instrument panel, the second of which operates as follows:
- when the ignition is turned on, the lamp lights up;
- after starting the engine the lamp goes out;
- if the lamp comes on again while the engine is running, this indicates a fault in the battery charging circuit.
Troubleshooting
The indicator light does not come on when the ignition is turned on.
Check:
- reliability of electrical connections;
- is the light bulb burnt out? (to do this, connect the circuit to ground, the lamp should turn on).
The indicator light comes on while the engine is running.
This indicates a malfunction of the charging target, the cause of which may be:
- break in the alternator drive belt, break in the wire between the alternator and the battery;
- damage to internal parts of the generator (rotor, stator, diodes or brushes);
- voltage regulator failure;
- output voltage too high.
The customer complains about the lack of charging, but the signal lamp works fine.
If the regulated voltage is below 13.5V, check the alternator
The cause of the malfunction may be:
- diode failure;
- phase break;
- formation of carbon deposits on the contact rings or their wear.
Checking voltage
Connect a voltmeter to the battery terminals and measure its voltage.
Start the engine and increase its speed until the voltmeter needle stabilizes at the regulated voltage.
This voltage should be between 13.5V and 14.8V.
Attention! When performing electric welding work on a vehicle, be sure to disconnect the battery and voltage regulator.
Removal and installation
Special tool required
- Mot. 1273 Belt tension tester
1. Place the vehicle on a two-post lift.
2. Disconnect the battery and the electrical connectors of the generator.
3. Remove the generator and booster pump drive belts.
4. Remove the generator.
5. Installation is carried out in the reverse order of removal.
(Material is located on the source website RenaultBook)
6. Tighten the belt with bolt 1 and tighten nut 2 after measuring the belt tension.
The belt tension adjustment values are given in the chapter "Maintenance".