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Page Title:
0111-03 Coolant Level Sensor Open Circuit (12) |
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 TM 9-2320-312-24-2
Troubleshooting Section
Results:
Service Tool Display or Lamps The Caterpillar
Electronic Technician (ET) will indicate "LOW" and
OK STOP.
"DIAG" next to "Engine Coolant Level"on the status
screen while the diagnostic code is active. The
check engine lamp will not come on unless the
i01724620
diagnostic code has been continuously active for
0111-04 Coolant Level Sensor
10 hours.
Short Circuit (12)
Engine Response There is no effect on engine
response due to this diagnostic code.
SMCS Code: 1408-081; 7422-038
Troubleshooting:
Conditions Which Generate This Code:
Perform the following diagnostic procedure:
This condition occurs when there is a short in
"Coolant Level Sensor Circuit - Test"
the circuit for the 2-wire float sensor. "Engine
Monitoring" must be programmed to "WARNING",
Results:
"DERATE", or "SHUTDOWN", and the parameter
"Coolant Level Sensor" must be programmed to
OK STOP.
"2-wire float sensor" before this diagnostic code
can occur. If the parameter "Coolant Level Sensor"
i01724150
is programmed to "2-pin switch" or to "4-pin", this
diagnostic code is disabled.
0111-03 Coolant Level Sensor
Open Circuit (12)
System Response:
Electronic System Response The ECM sets the
SMCS Code: 1408-081; 7422-038
Coolant Level to OK while this diagnostic code is
active. Coolant Level Engine Monitoring is disabled
Conditions Which Generate This Code:
while this code is active.
This condition occurs when there is an open in
Service Tool Display or Lamps The Caterpillar
the circuit for the 2-wire float sensor. "Engine
Caterpillar Electronic Technician (Cat ET) will
Monitoring" must be programmed to "WARNING",
indicate "OK" and "DIAG" next to "Engine Coolant
"DERATE", or "SHUTDOWN", and the parameter
Level"on the status screen while the diagnostic code
"Coolant Level Sensor" must be programmed to
is active. The check engine lamp will illuminate.
"2-wire float sensor" before this diagnostic code
can occur. If the parameter "Coolant Level Sensor"
Engine Response There is no effect on engine
is programmed to "2-pin switch" or to "4-pin", this
response due to this diagnostic code.
diagnostic code is disabled.
Troubleshooting:
System Response:
Perform the following diagnostic procedure:
Electronic System Response The ECM sets the
"Coolant Level Sensor Circuit - Test"
Coolant Level to OK while this diagnostic code is
active. Coolant Level Engine Monitoring is disabled
while this code is active.
Results:
OK STOP.
Service Tool Display or Lamps The Caterpillar
Caterpillar Electronic Technician (Cat ET) will
indicate "OK" and "DIAG" next to "Engine Coolant
Level"on the status screen while the diagnostic code
is active. The check engine lamp will illuminate.
Engine Response There is no effect on engine
response due to this diagnostic code.
Troubleshooting:
Perform the following diagnostic procedure:
"Coolant Level Sensor Circuit - Test"
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