pontiac Workshop Repair Guides

Pontiac 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 2581

Firebird V8-305 5.0L VIN F FI (1987)

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Reference Signal: Description and Operation

Crank Signal
    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 starting mode.

Assembly Line Diagnostic Link (ALDL) Connector <--> [Data Link Connector] > < Coolant Temperature Sensor/Switch (For Computer)|Specifications|Page 2581