|
Oil Temperature – Engine Protection
|
Overview
| CODE | REASON | EFFECT |
| Fault Code: 214 PID: P175 SPN: 175 FMI: 0 LAMP: Engine Protection, Red, or Yellow* SRT: 00-059 |
High oil temperature detected. Voltage at the oil temperature signal pin 6 of the sensor harness connector indicates the oil temperature above 123.9°C [255°F]. | Progressive power and speed derate with increasing time after alert. If Engine Protection Shutdown is enabled, the engine will shut down 30 seconds after the engine protection lamp or the Red lamp* starts flashing. |
|
Oil Temperature Sensor Circuit |
 |
Circuit Description
The oil temperature sensor monitors oil temperature and passes the information to the electronic control module (ECM) through the sensor harness. If the oil temperature becomes too high and engine protection is enabled, a derate condition can be incurred, possibly leading to shutdown.
Component Location
- M11 – The oil temperature sensor is located on the engine block behind the ECM.
- N14 – The oil temperature sensor is located in the lubricating pump housing.
Shop Talk
- Check for high restriction on both the oil and coolant sides of the oil cooler.
- Make sure the oil cooler thermostat is working correctly.
*Applies to 98N14 and 98M11 calibrations only.
Troubleshooting Steps
| STEPS | SPECIFICATIONS | |
|---|---|---|
| STEP 1. | Check the sensor accuracy. | |
| STEP 1A. Verify the sensor accuracy with a thermocouple or similar temperature probe. | Sensor reading is correct | |
| STEP 2. | Clear the fault codes. | |
| STEP 2A. Disable the fault code. | Fault Code 214 inactive | |
| STEP 2B. Clear the inactive fault codes. | All fault codes cleared | |
Guided Step 1 – Check the sensor accuracy.
| Guided Step 1A – Verify the sensor accuracy with a thermocouple or similar temperature probe. | |
|---|---|
Conditions
Action
NOTE: If a temperature measuring device is not |
|
| OK | NOT OK |
| Sensor reading correct
Refer to the proper base engine troubleshooting and repair manual.
|
Does not meet specifications. |
|
Fault Code 212
|
|
Guided Step 2 – Clear the fault codes.
| Guided Step 2A – Disable the fault code. | |
|---|---|
Conditions
Action
|
|
| OK | NOT OK |
| Fault Code 214 inactive | Return to troubleshooting steps or contact your nearest Cummins Authorized Repair Location if all steps have been completed and checked again. |
| Guided Step 2B – Clear the inactive fault codes. | |
|---|---|
Conditions
Action
|
|
| OK | NOT OK |
| All fault codes cleared | Troubleshoot any remaining active fault codes. |
|
Repair complete
|
Appropriate troubleshooting chart
|
Last Modified: 10-Mar-2003
