Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 171
FMI: 2
Description: Ambient Temperature Sensor Data Erratic
Troubleshooting:
DESCRIPTION:
Ambient temperature sensor data signal error.
MONITORED PARAMETER:
Ambient temperature
TYPICAL ENABLING CONDITIONS:
Always enabled
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Always enabled
TYPCIAL DURATION:
Two seconds
DASH LAMPS:
CEL
ENGINE REACTION:
None
VERIFICATION:
1. Key cycle: five minutes.
2. Engine idle: two minute.
POSSIBLE CAUSES:
1. Faulty wiring.
2. Faulty ambient air temperature sensor.
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 171
FMI: 3
Description: Ambient Temperature Sensor Failed High or Open
Troubleshooting:
DESCRIPTION:
Ambient air temperature sensor input open circuit.
MONITORED PARAMETER:
Ambient temperature
TYPICAL ENABLING CONDITIONS:
Always enabled
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Always enabled
TYPCIAL DURATION:
Two seconds
DASH LAMPS:
CEL
ENGINE REACTION:
None
VERIFICATION:
1. Key cycle: five minutes.
2. Engine idle: two minutes.
POSSIBLE CAUSES:
1. Bent terminals.
2. Spread terminals.
3. Corroded terminals.
4. Pin damage.
5. Faulty ambient temperature sensor.
6. Faulty wiring.
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)CPC3
PID: N/A
SPN: 171
FMI: 3
Description: Ambient Temperature Sensor Failed High
Troubleshooting:
DESCRIPTION:
Ambient air temperature sensor input (AI_01 or AI_07) – Short to UBATT or open circuit.
MONITORED PARAMETER:
Ambient temperature
TYPICAL ENABLING CONDITIONS:
Always enabled
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Always enabled
TYPCIAL DURATION:
2 seconds
DASH LAMPS:
CEL
ENGINE REACTION:
None
VERIFICATION:
1. Key cycle: five minutes.
2. Engine idle: two minutes.
POSSIBLE CAUSES:
1. Bent terminals.
2. Spread terminals.
3. Corroded terminals.
4. Pin damage.
5. Faulty ambient temperature sensor.
6. Faulty wiring.
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)CPC
PID: N/A
SPN: 171
FMI: 4
Description: Ambient Temperature Sensor Failed Low
Troubleshooting:
DESCRIPTION:
Ambient air temperature sensor input (AI_01 or AI_07) – Short to GND.
MONITORED PARAMETER:
Ambient temperature
TYPICAL ENABLING CONDITIONS:
Always enabled
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Always enabled
TYPCIAL DURATION:
2 seconds
DASH LAMPS:
CEL
ENGINE REACTION:
None
VERIFICATION:
Key cycle – 5 minutes off – engine Idle (2 minute).
POSSIBLE CAUSES:
1. Damaged pins.
2. Bent pins.
3. Spread terminals.
4. Corroded terminals.
5. Faulty ambient temperature sensor.
6. Faulty wiring.
7. Damaged connector.
8. Damaged wire.
9. Faulty CPC.
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)CPC3
PID: N/A
SPN: 171
FMI: 4
Description: Ambient Temperature Sensor Failed Low
Troubleshooting:
DESCRIPTION:
Ambient air temperature sensor input – short to GND.
MONITORED PARAMETER:
Ambient temperature
TYPICAL ENABLING CONDITIONS:
Always enabled
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Always enabled
TYPCIAL DURATION:
Two seconds
DASH LAMPS:
CEL
ENGINE REACTION:
None
VERIFICATION:
1. Key cycle: five minutes off.
2. Engine idle: two minutes.
POSSIBLE CAUSES:
1. Bent terminals.
2. Spread terminals.
3. Corroded terminals.
4. Pin damage.
5. Faulty ambient temperature sensor.
6. Faulty wiring.