PCC1302 PowerCommand Code 2112 AUX 101 Coolant Inlet Temperature ORR (Warning)

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This instruction show you guide on how to repair PCC1302 PowerCommand code 2112 AUX 101 Coolant Inlet Temperature ORR (Warning).

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Coolant temperature sensor voltage is out of range.

Possible Causes:
1 Faulty coolant temperature sensor connections
2 Faulty coolant temperature sensor
3 Improper wiring
4 Verify controller calibrations

Diagnosis and Repair:
1 Faulty coolant temperature sensor connections
a Inspect the coolant temperature sensor and the engine harness connector pins.
a Disconnect the engine harness connector from the coolant temperature sensor.
b Inspect for corroded pins, bent or broken pins, pushed back or expanded pins.
c Inspect for evidence of moisture in or on the connector.
d Inspect for missing or damaged connector seals

e Inspect for dirt or debris in or on the connector pins.

2 Faulty coolant temperature sensor
a Check the resistance of the sensor
a Disconnect the engine harness connector from the coolant temperature sensor.
b Measure the resistance between the coolant temperature sensor signal pin and the coolant temperature sensor return pin.

3 Improper wiring
a Check wiring. Ensure wiring from the coolant temperature sensor is connected to the correct Aux 101 input.
b Check wires for breaks or abrasions.
c Check wires for moisture and debris at connection points.

4 Verify controller calibrations
a Using the display or the InPower Service tool, verify the calibration in the PCC control.
a If the calibration in the PCC control matches the latest calibration on the InCal website, then the calibration is correct. If it does not, update the calibration to the latest.
b Using the InSite Service tool, verify the calibration in the ECM.
a If the calibration in the ECM matches the latest calibration on QSOL, then the calibration is correct. If it does not, update the ECM to the latest calibration.

Refer to the engine manual for correct threshold values and make the appropriate changes using InPower v14.5 pro.

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