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Home >> Jeep >> 2023 >> Grand Cherokee Altitude, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 26 (Hybrid Control Processor Module (HCP) - DTCS P0A02-00 To P0ADA-00) >> DTC Troubleshooting >> P0A03-00 Inverter Coolant Temperature Sensor "A" Circuit High >> Theory Of Operation

Theory Of Operation

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This sensor is wired to the Power Inverter Module (PIM). The Hybrid Control Processor (HCP) compares the various Temperature Sensor readings. If one sensor is out of range with the other sensors, a DTC is set in the HCP.

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