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Emission Control Systems > < Diagram Information and Instructions|Page 2487
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Voltage Signal: Description and Operation

PURPOSE

 

Supplies Powertrain Control Module (PCM), with current charging system voltage.

 
OPERATION

 

If the PCM senses low battery voltage:

 

^ PCM increases injector pulse width to compensate for low voltage.

 

^ PCM increases generator field voltage. 

 

If the PCM senses high battery voltage:

 

^ PCM decreases injector pulse width to compensate for high voltage.

 

^ PCM decreases generator field voltage. 

Emission Control Systems > < Diagram Information and Instructions|Page 2487