SENSOR GP-PRESSURE 7X6357 - Caterpillar

Table 3
Sensor Signal Voltage at Specified Temperatures in Cat ET
Temperature Displayed in Cat ET Coolant and Air Inlet Temp (in Boost Press, Turbocharged versions only) Air Inlet (In Mass Air Flow Sensor)
20° C (68° F) Approximately 2.4 v Approximately 3.1 v
40° C (104° F) Approximately 1.5 v Approximately 2.2 v
60° C (140° F) Approximately 0.9 v Approximately 1.4 v
80° C (176° F) Approximately 0.5 v Approximately 0.9 v
100° C (212° F) Approximately 0.3 v ( 100° C (212° F) (only applicable to Coolant Temp Sensor) -
Sensor Signal Voltage at Specified Temperatures in Cat ET
Temperature Displayed in Cat ET Aftertreatment Sensors
100° C (212° F) Approximately 4.4 v
150° C (302° F) Approximately 3.7 v
200° C (392° F) Approximately 3.0 v
250° C (482° F) Approximately 2.3 v
Table 4
Troubleshooting Test Steps Values Results
1. Check Resistance of the Temperature Sensor Between Signal and Ground
Refer to the tables above for resistance specifications.
A. For the temperature sensors built into the boost Pressure sensor (turbocharged versions only) or Mass Air Flow sensor refer to circuit diagram.
Resistance
Result: The resistance measurement is not within the specification.
Replace the temperature sensor.
Result: The resistance of the temperature sensor is within specification.
Proceed to Test Step 2.
2. Check Resistance At the ECM Connector Terminals
A. Refer to the circuit diagrams
B. Check voltages in Cat ET.
Harness
Result: If not good then the fault is in the wiring harness, the connectors to the ECM are not fully seated, or the ECM or sensor pins are bent. Repair or replace.
Result: If good, then recheck to see if the fault code is still active.
Proceed to Test Step 3.
3. Electrical Connectors
A. Refer to Electrical Connectors - Inspect
Connectors
Result: The electrical connections are not OK.
There is still a problem in the harness or connectors. Make the necessary repairs.
Result: The electrical connections are OK.
STOP
If the procedure did not correct the issue, contact your Cat dealer Technical Communicator (TC). For further assistance, your TC can confer with the Dealer Solutions Network (DSN).Exhaust Gas Temperature Sensors
Table 5
Diagnostic Trouble Codes
Code Description Conditions Present Response
523599-0 All Exhaust Gas Temperature Sensor Failure All exhaust temperature sensor failure simultaneously.
Engine speed is 1400 rpm or more.
Quantity of injection is 30 mm3/st or more.
Coolant temp is 50° C (122° F) or more and continues longer than 5 minutes.
Passed 100 seconds after cranking.
All exhaust temperature sensor failure (sensor low) simultaneously for 100 seconds or more.
Engine derates 25%
Warning Level 2
Table 6
Troubleshooting Test Steps Values Results
1. Other Active or Logged Diagnostic Codes
A. Check for other active or logged diagnostic codes, which can help determine the cause of this diagnostic code.
Codes
Result: Other active or logged diagnostic codes are not present.
Proceed to Test Step 2.
2. Inspect Electrical Connectors and Wiring
A. Check that the connector is fully seated at the sensor.
B. Check that the wires to the connector are not pulled tight at the connector, not rubbing, not broken.
C. Check that the connector pins and sockets are not damaged and aligned correctly.
D. Check the harness for corrosion, abrasion, and pinch points from the sensor to the Engine ECM.
Loose connections, poor routings, damaged wires
Result:There is a fault in