9-5 Wagon (9600) L4-2.3L Turbo (B235) (1999)
Engine Control Module: Description and Operation
Control Module Ground
Ground
Power ground
Grounding point G7 is used to ground the following:
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control module pins 25 47 and 62
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the mass air flow sensor
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the ignition discharge module.
Sensor Ground
The following sensors are grounded via pin 22 of the control module:
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The crankshaft position sensor and its screening
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The manifold absolute pressure sensor
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The intake air temperature sensor
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The coolant temperature sensor