TUBE AS 3C8535 - Caterpillar

Illustration 1 g01195375
Schematic of the Transmission Oil Temperature Sensor
This diagnostic code is recorded when the ECM reads the signal wire of the temperature sensor and the voltage is high. The possible causes of this diagnostic code are listed here:
A shorted harness
An open supply circuit to the sensor
A failed sensor
An open circuit
The ECM may have failed. This is unlikely.Note: Ensure that the diagnostic code is still active.Note: The following procedure can create numerous related diagnostic codes. Reconnect all harnesses. Then, the related diagnostic codes will be shown as being NOT active. Complete the following procedure. Then, clear all of the related diagnostic codes.Test Step 1. CHECK THE SUPPLY VOLTAGE AT THE SENSOR.
Turn the disconnect switch and the key start switch to the ON position.
Check the voltage at the machine harness connector of the sensor from contact A (sensor supply) to contact B (ground). Do NOT disconnect the sensor. Use the 7X-1710 Cable probes to measure the voltage. Expected Result:The voltage should measure approximately 24 DCV.Results:
OK - The voltage is approximately 24 DCV. The voltage is correct. Proceed to test step 3.
NOT OK - The voltage is not approximately 24 DCV. There is an open in the