Car Batteries
Late Model 1979-New Ford Mustangs

What would cause electrical problems in the dash of a 1988 Ford Mustang LX 2.3 not the alternator?


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Wiki User
2011-09-13 17:54:19
2011-09-13 17:54:19

you should check and most likely have to replace the switch that spins left and right to dim and brighten the dash lights p.s. you didnt say so you probley don't but if you do have headlight problems too than it might not be that switch>my headlight worked fine


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* Voltage Regulator * Defective Battery * Dirty Battery Post Connections * Alternator/Generator problems

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Dead battery, car will not start

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yes if the alternator isnt charging the battery correctly then it couldnt be sending ecu false signals when my alternator was playing up , my central locking my hazards interior light and rear wiper stopped working

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The voltage regulator in the alternator can cause issues like this when they start to go bad. The voltage regulator is an integrated part of the alternator and cannot be replaced, if it is bad, the entire alternator must be replaced.

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Yes, the alternator provides electrical energy to keep the battery charged. If the alternator isn't functioning, the battery will discharge and there will be insufficient electrical energy to operate the ignition and other electrical components. Understand that a battery is only an electrical STORAGE device. Electrical energy is produced by the alternator. The function of the battery is to provide electrical energy for NEXT time you want to start the engine. Once the engine is started, the alternator must take care of all electrical requirements of the vehicle as well as for providing enough additional electrical energy to replace electrical energy to the battery that was last used when the engine was started.

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