Section 5.27
PID 110, FMI 3, Flash Code 14, Coolant Temperature Sensor Input Voltage Low
The Coolant Temperature Sensor (CTS) input voltage is low due to an open wire or a short.
Section 5.27.1
Troubleshooting PID 110, FMI 3, FLASH CODE 14
Troubleshoot as follows:
NOTICE: |
To avoid damage to the harness and connectors when disconnecting harness connectors, ensure the pulling force is applied to the connectors and not to the wires extending from the connectors. |
- Check wire 133 (yellow, coolant temperature) cavity P-3 in the Engine Sensor Harness (ESH) 30–pin connector to see if it is open (see Figure
"Engine Sensor Harness 30–pin Connector"
). Also check pin B (coolant temperature) in the Coolant Temperature Sensor connector. Repair or replace any open wire(s).
Figure 1. Engine Sensor Harness 30–pin Connector
- If the code is still active, go to step .
- If the code is no longer active, refer to "5.27.2 Verification" .
- Check wire 133 (yellow, coolant temperature) cavity P-3 in the ESH 30–pin connector for a short to +12V/+24V (see Figure
"Engine Sensor Harness 30–pin Connector"
). Also check pin B (coolant temperature) in the Coolant Temperature Sensor connector. If there is a short, repair or replace any open wire(s).
- If the code is still active, go to step .
- If the code is no longer active, refer to "5.27.2 Verification" .
- Check wire 133 (yellow, coolant temperature) cavity P-3 for a short to wire 416 (gray, sensor supply voltage, 5VDC) cavity W-1 in the ESH 30–pin connector (see Figure
"Engine Sensor Harness 30–pin Connector"
). Also check bin B (coolant temperature) in the Coolant Temperature Sensor connector. If there is a short, repair or replace any open wire(s).
- If the code is still active, call Detroit Diesel Technical Service.
- If the code is no longer active, refer to "5.27.2 Verification" .
Section 5.27.2
Verification
Verify troubleshooting as follows:
- Check the DDR to see if PID 110, FMI 3, Flash Code 14 is still active.
- If the code is still active, go to step 2.
- If the code is not active, troubleshooting is complete.
- If the code is still active, call Detroit Diesel Technical Service.
Series 50G and 60G Troubleshooting Guide - 6SE482 |
Generated on 10-13-2008 |