“CAT ET 2026 Diagnostic Software” has been added to your cart. View cart
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:P2763 TCC PCS Control Circuit High
1000 & 2000 Gen 5
-
Volvo All Engines (2017 Emissions) Fault Code: P21CE9A PID: EMS Reductant Quality Module Performance
All Engines (2017 Emissions) -
Allison 1000 & 2000 Gen 5 Fault Code:P0561 System Voltage – Performance
1000 & 2000 Gen 5