chevrolet Workshop Repair Guides

Chevrolet Workshop Service and Repair Manuals

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Assembly Line Diagnostic Link (ALDL) Connector <--> [Data Link Connector] > < Coolant Temperature Sensor/Switch (For Computer)|Specifications|Page 1957

Astro Van M L4-151 2.5L (1985)

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Reference Signal: Description and Operation

This signal is used to inform the ECM that the engine is cranking. The ECM uses this information to tell when the engine is in the cranking mode.

Assembly Line Diagnostic Link (ALDL) Connector <--> [Data Link Connector] > < Coolant Temperature Sensor/Switch (For Computer)|Specifications|Page 1957