The ambient air temperature signal is sent to the instrument cluster module. The instrument cluster module then transmits the ambient air temperature data to the Engine Control Module (ECM) via the J1939 data lines.
Conditions for diagnostic trouble code (DTC):
1) No ambient air temperature sensor signal
Probable cause
1) Ambient air temperature sensor
2) Wiring harness
3) Ambient temperature below -30??C (-22??F)
Related products
-
Allison 1000 & 2000 Gen 5 Fault Code:U0073 CAN Communication Bus 1 Off
1000 & 2000 Gen 5 -
Allison 1000 & 2000 Gen 5 Fault Code:P2764 TCC PCS Control Circuit Low
1000 & 2000 Gen 5 -
Allison 1000 & 2000 Gen 5 Fault Code:U0100 Lost Communication With ECM A
1000 & 2000 Gen 5
-
Volvo All Engines (2013 Emissions) Fault Code: P009B73 PID: EMS Fuel Pressure Relief Control
All Engines (2013 Emissions) -
Volvo All Engines (2017 Emissions) Fault Code: P114412 PID: EMS Starter Relay Highside
All Engines (2017 Emissions)