Grand Cherokee 2WD L6-4.0L VIN S (1997)
Oxygen Sensor: Testing and Inspection
Helpful Information
Circuit A142 also supplies battery voltage to the fuel injectors, ignition coil, and generator.
Circuit K4 splices to supply ground for the signals from the following:
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Battery temperature sensor
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Camshaft position sensor
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Crankshaft position sensor
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Engine coolant temperature sensor
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Fuel pump module
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Intake air temperature sensor
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Manifold absolute pressure sensor
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Oil pressure sensor
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Powertrain control module
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Throttle position sensor
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Transmission solenoid assembly
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Vehicle speed control switch
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Vehicle speed sensor