Operation CHARM: Car repair manuals for everyone.

"E" Cell

OPERATION
Controls voltage at ECM terminal 15 providing a different control value for some systems during the break-in period.
- For the first 25,000 miles of vehicle operation the voltage at ECM terminal 15 is nearly zero.
- After the first 25,000 miles of vehicle operation the "E" cell raises the voltage at ECM terminal 15 to near 5 volts.