Start the car and while it is running, disconnect the positive cable from the battery. If the car stalls, the alternator is bad.
* Disconnect the negative battery cable * Raise the car and support it securely on jackstands.Remove the lower splash shield beneath the alternator and the right-side inner fender splash shield * Remove the drivebelt * Disconnect the electrical connector and the alternator output wire from the alternator * Remove the engine cooling fan and shroud * Remove the air conditioning compressor mounting bolts (without disconnecting the refrigerant lines) and slide the compressor forward * Remove the alternator mounting bolts and remove the alternator from the engine
* Disconnect the negative battery cable * Raise the car and support it securely on jackstands.Remove the lower splash shield beneath the alternator and the right-side inner fender splash shield * Remove the drivebelt * Disconnect the electrical connector and the alternator output wire from the alternator * Remove the engine cooling fan and shroud * Remove the air conditioning compressor mounting bolts (without disconnecting the refrigerant lines) and slide the compressor forward * Remove the alternator mounting bolts and remove the alternator from the engine
* Disconnect the negative battery cable * Raise the car and support it securely on jackstands.Remove the lower splash shield beneath the alternator and the right side inner fender splash shield * Remove the drivebelt * Disconnect the electrical connector and the alternator output wire from the alternator * Remove the engine cooling fan and shroud * Remove the air conditioning compressor mounting bolts (without disconnecting the refrigerant lines) and slide the compressor forward * Remove the alternator mounting bolts and remove the alternator from the engine
Leave battery lead to alternator connected, disconnect other leads. Run car and check output at these two leads. Should be 14-16 Volts.
BATT/ALT light on; ammeter shows no output; dim lights - start the vehicle and disconnect the battery; if the engine dies, the alternator is bad.
Disconnect the negative battery terminal disconnect the main output lead, and the smaller connector from the alternator Remove the drive belt Remove the front alternator bracket bolt The engine needs to be rocked forward to gain clearance for removing the rear bolts. remove the rear bolts, and the alternator.
Disconnect the negative battery cable.Raise and support the vehicle securely.Remove the lower splash shield beneath the alternator and the right-side inner fender splash shield.Remove the drivebeltDisconnect the electrical connector and the alternator output wire from the alternator.Remove the engine cooling fan and shroud.Remove the air conditioning compressor mounting bolts (without disconnecting the refrigerant lines) and slide the compressor forward.Remove the alternator mounting bolts and remove the alternator from the engine.Installation is the reverse of removal.
The battery light comes on when the alternator output voltage is too low or too high. You have a wiring or regulator problem.The battery light comes on when the alternator output voltage is too low or too high. You have a wiring or regulator problem.
Alternator Output Voltage RangeGenerally, alternator output voltage is consider OK if it is in the range between 12 1/2 volts to a maximum of 16 volts.Therefore, although the output is at the maximum, you do not seem to have a problem.Usually, if the battery has had a lot of drain, then the alternator output will run at the maximum until the battery is fully charged.
The battery light is for low alternator output voltage. Try testing the alternator output using a miltimeter and if its less than 13 volts your alternator isn't putting out what it should. If it has low output check the belt tension and all wire connections before replacing alternator
Wires between Alternator and Battery, and between Alternator plug connector and fuse box etc.
A 97 Maxima can have these symptoms because of a bad alternator. If the alternator has low output there can be a ticking and eventually the engine will stop running.