MID 111 - CID 1549 - FMI 05 Cyl #19 Exhaust Port Temp Sensor open circuit
Conditions Which Generate This Code:
The Integrated Temperature Sensing Module (ITSM) detects an open circuit for the input from the thermocouple of the cylinder.
System Response:
Monitoring of the exhaust temperature for the cylinder is lost. Also, protection for the cylinder is lost.
The thermocouple is removed from the calculation for the average temperature of the engine.
The code is logged. The "Status" screen of the Caterpillar Electronic Technician (ET) displays "Open/Shorted High" for the cylinder.
The diagnostic code remains active until the condition that caused the code is not present for 30 seconds.
Engine operation is not affected.
Test Step 1. Perform the following diagnostic procedure: Integrated Temperature Sensing Module (ITSM)
Results:
- OK - STOP
Caterpillar Information System:
G3520B Engines MID 111 - CID 1548 - FMI 05 Cyl #18 Exhaust Port Temp Sensor open circuit
G3520B Engines MID 111 - CID 1547 - FMI 05 Cyl #17 Exhaust Port Temp Sensor open circuit
G3520B Engines MID 111 - CID 1550 - FMI 04 Cyl #20 Exhaust Port Temp Sensor short to ground
G3520B Engines MID 111 - CID 1549 - FMI 04 Cyl #19 Exhaust Port Temp Sensor short to ground
G3520B Engines MID 111 - CID 1548 - FMI 04 Cyl #18 Exhaust Port Temp Sensor short to ground
G3520B Engines MID 111 - CID 1547 - FMI 04 Cyl #17 Exhaust Port Temp Sensor short to ground
G3520B Engines MID 111 - CID 1550 - FMI 03 Cyl #20 Exhaust Port Temp Sensor short to +batt
G3520B Engines MID 111 - CID 1549 - FMI 03 Cyl #19 Exhaust Port Temp Sensor short to +batt
G3520B Engines MID 111 - CID 1548 - FMI 03 Cyl #18 Exhaust Port Temp Sensor short to +batt
G3520B Engines MID 111 - CID 1547 - FMI 03 Cyl #17 Exhaust Port Temp Sensor short to +batt
G3520B Engines MID 111 - CID 1539 - FMI 04 Cyl #9 Exhaust Port Temp Sensor short to ground
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G3520B Engines MID 111 - CID 1550 - FMI 05 Cyl #20 Exhaust Port Temp Sensor open circuit
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