SPN 111 - FMI 4 (Fault Code 196 - Two Wire Sensor)
SPN 111 - FMI 4 (Fault Code: 196 - Two Wire Sensor)
SPN111 FMI4
CODES:
Fault Code: 196
PID(P), SID(S): P111
SPN: 111
FMI: 4/4
Lamp: AMBER
SRT:
REASON: Coolant Level Sensor 1 Circuit - Voltage Below Normal or Shorted to Low Source. Low signal voltage detected at the engine coolant level circuit.
EFFECT: None on performance.
Circuit Description:
The engine coolant level sensor is a switch and is used to measure the level of the engine coolant in the radiator top tank. The coolant level sensor is immersed in the coolant and returns a different signal voltage when immersed in coolant versus being out of coolant. The electronic control module (ECM) supplies 5 volts to the coolant level signal circuit. The resistance of the engine coolant level sensor changes based on the coolant level. The sensor resistance is between 5.4k ohms and 34k ohms when the sensor is submersed in coolant. The sensor resistance is between 333k ohms and 880k ohms when the sensor is not submersed in coolant. The ECM monitors the change in voltage caused by changes in the resistance of the sensor to determine the level of the engine coolant.
Component Location:
The engine coolant level sensor is typically located in the radiator top tank or surge tank.
Conditions for Running the Diagnostics:
This diagnostic runs continuously when the keyswitch is in the ON position or when the engine is running.
Conditions for Setting the Fault Codes:
The ECM detects that the coolant level signal voltage is less than 0.258-VDC for more than 20 seconds.
Action Taken When the Fault Code is Active:
• The ECM illuminates the amber CHECK ENGINE light immediately when the diagnostic runs and fails.
• No engine protection will be available for low coolant level.
Conditions for Clearing the Fault Code:
The ECM will turn off the amber CHECK ENGINE light immediately after the diagnostic runs and passes.
Shop Talk:
Possible causes of this fault code include:
• Signal circuit shorted to ground or return in the harness, sensor, or connectors.
Read More:
SPN 111 - FMI 3 (Fault Code 195 - Two Wire Sensor)
SPN 111 - FMI 3 (Fault Code 195 - Three Wire Sensor)
Blog.Teknisi
SPN111 FMI4
 |
| ISB, ISC and ISL with CM2150 - Engine Coolant Level Sensor 1 Circuit |
CODES:
Fault Code: 196
PID(P), SID(S): P111
SPN: 111
FMI: 4/4
Lamp: AMBER
SRT:
REASON: Coolant Level Sensor 1 Circuit - Voltage Below Normal or Shorted to Low Source. Low signal voltage detected at the engine coolant level circuit.
EFFECT: None on performance.
Circuit Description:
The engine coolant level sensor is a switch and is used to measure the level of the engine coolant in the radiator top tank. The coolant level sensor is immersed in the coolant and returns a different signal voltage when immersed in coolant versus being out of coolant. The electronic control module (ECM) supplies 5 volts to the coolant level signal circuit. The resistance of the engine coolant level sensor changes based on the coolant level. The sensor resistance is between 5.4k ohms and 34k ohms when the sensor is submersed in coolant. The sensor resistance is between 333k ohms and 880k ohms when the sensor is not submersed in coolant. The ECM monitors the change in voltage caused by changes in the resistance of the sensor to determine the level of the engine coolant.
Component Location:
The engine coolant level sensor is typically located in the radiator top tank or surge tank.
Conditions for Running the Diagnostics:
This diagnostic runs continuously when the keyswitch is in the ON position or when the engine is running.
Conditions for Setting the Fault Codes:
The ECM detects that the coolant level signal voltage is less than 0.258-VDC for more than 20 seconds.
Action Taken When the Fault Code is Active:
• The ECM illuminates the amber CHECK ENGINE light immediately when the diagnostic runs and fails.
• No engine protection will be available for low coolant level.
Conditions for Clearing the Fault Code:
The ECM will turn off the amber CHECK ENGINE light immediately after the diagnostic runs and passes.
Shop Talk:
- Verify the electronic control module (ECM) calibration is correct. Check the calibration revision history found on QuickServe® Online for applicable fixes to the calibration stored in the ECM. If necessary, recalibrate the ECM.
Possible causes of this fault code include:
• Signal circuit shorted to ground or return in the harness, sensor, or connectors.
Read More:
SPN 111 - FMI 3 (Fault Code 195 - Two Wire Sensor)
SPN 111 - FMI 3 (Fault Code 195 - Three Wire Sensor)
Blog.Teknisi
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what number is on the ecm or harness to ohm to the sensor. I have an error code 196which wires do I check for voltage coming from ecm. Because I have no voltage going to coolant level sensor 2 wire.
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