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Engine Coolant Level – Engine Protection
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Overview
| CODE | REASON | EFFECT |
| Fault Code: 197 PID: P111 SPN: 111 FMI: 1/18 LAMP: Yellow SRT: |
Engine coolant level signal indicates coolant level has exceeded the engine protection limit. |
Power and/or speed derate and possible engine shutdown if engine protection shutdown feature is enabled. |
 Coolant Level Sensor Circuit
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Circuit Description
The coolant level sensor monitors the coolant level within the coolant system and passes information to the electronic control module (ECM).
Component Location
The coolant level sensor is installed by the OEM. Use the OEM manual for sensor location.
Shop Talk
- When the coolant level drops below a certain level, a power derate will be activated, which will decrease the power output by 50 percent over a 30-second period.
- If a shorting plug is used in the coolant level circuit, verify that it is wired correctly.
- Inspect the wiring harness between the four-way connector and the coolant level sensor for damage.
Refer to Troubleshooting Fault Code t05-197
Last Modified: 26-Oct-2010
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