SPN 111/FMI 4
This fault is typically a short to ground. Perform the following steps to troubleshoot.
Short to Ground Check
Check for a short to ground as follows:
- Check for multiple codes.
- If other faults are active in addition to fault 111/4, troubleshoot the other faults first.
- If only fault 111/4 is active, go to step 2 .
- Disconnect the ECL Sensor. See Figure
"Engine Coolant Level Sensor Installation for CPC"
Figure 1. Engine Coolant Level Sensor Installation for CPC
- If fault 111/4 is not active after disconnecting the sensor, replace the ECL Sensor.
- If fault 111/4 is active after disconnecting the sensor, go to step 3 .
- Disconnect the #3 connector (21-pin).
- Measure the resistance across pins 1 and 2 of the ECL Sensor connector.
- Measure the resistance between pin 1 of the ECL Sensor harness connector and ground.
- Measure the resistance between pin 2 of the ECL Sensor harness connector and ground.
- If the resistance is less than 5 Ω, repair the short circuit between pin 2 of the ECL Sensor harness connector and ground. Refer to "184.108.40.206 Verify Repairs" .
- If the resistance is greater than 5 Ω, review steps through 6 . If the results are the same, call the Detroit Diesel Customer Support Center (313–592–5800).
Verify repairs as follows:
- Turn ignition OFF.
- Reconnect any electrical connections that were disconnected to perform the diagnosis.
- Clear codes with DDDL 7.0 or latest version.
- Start and bring engine up to operating temperature (over 140°F/60°C).
- Verify operation is satisfactory and no warning lamps illuminate. If warning lamps illuminate, troubleshoot the codes. If assistance is required, call the Detroit Diesel Customer Support Center at 313–592–5800.
|EPA07 MBE 4000 DDEC VI Troubleshooting Guide - 6SE568|
|Generated on 10-13-2008|