buick Workshop Repair Guides

Buick Workshop Service and Repair Manuals

"E" Cell|Page 1934 > < Engine Controls - Aftermarket Accessory Usage|Page 1931
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Engine Control Module: Description and Operation
"E" Cell

The ``E'' cell controls voltage at ECM terminal 15. 

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For the first 25,000 miles of vehicle operation, voltage is nearly zero. 

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The ``E'' cell then causes voltage to rise to approximately 5 volts, providing a different control value for some systems.

"E" Cell|Page 1934 > < Engine Controls - Aftermarket Accessory Usage|Page 1931