MBE 900 DDEC VI Troubleshooting – Section 27.2 SPN 100/FMI 2

Section 27.2
SPN 100/FMI 2

The diagnosis for this code is typically erratic data from the Engine Oil Pressure Switch/Sensor.‪

Section 27.2.1
Erratic Data From the Engine Oil Pressure Switch/Sensor

Check as follows:‪

1. With the engine shut down, all oil drained into the oil pan, and the vehicle on a level surface, check the oil level.
   1. If the oil level is not within the “normal” operating range on the dipstick, add the recommended oil to bring it to the proper level. Refer to "27.2.1.1 Verify Repairs" .
   2. If the oil level is within the “normal” operating range on the dipstick, go to step 2 .
2. Check for additional active fault codes.
   1. If fault code 100/3 is active in addition to code 100/2, refer to "27.4.1 Open Short to Ground Check" .
   2. If fault code 100/4 is active in addition to code 100/2, refer to "27.3.1 Open Short to Power Check" .
   3. If only fault code 100/2 is active, check and clean switch contacts (remove any corrosion). Refer to "27.2.1.1 Verify Repairs" .

Section 27.2.1.1
Verify Repairs

Verify repairs as follows:‪

1. Turn ignition OFF.
2. Reconnect any electrical connections that were disconnected to perform the diagnosis.
3. Clear codes with DDDL 7.0 or latest version.
4. Start and bring engine up to operating temperature (over 140°F/60°C).
5. 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.