The heater fan speed control only works in the high speed position (i.e.,
4). This appears to be a common problem with all Nissan models and is likely due to a open circuit in a resistor pack.Where is the resistor pack located on a '99 Altima and how is it removed?
TIA, Ken.
On my old ('92) Ford Explorer there was a diode that burned out. It only cost about 50 cents to replace just the diode. The sympoms sound like they are the same.
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