“CAT ET 2026 Diagnostic Software” has been added to your cart. View cart
The NOx sensor measures the amount of NOx in the exhaust system. The NOx sensor is connected in the J1939-2 data link. This diagnostic trouble code (DTC) indicates a NOx monitoring failure. For example; NOx sensor short- or open circuit, NOx sensor removed, NOx sensor missing signal.
Conditions for diagnostic trouble code (DTC):
1) Internal NOx sensor heating failure
Observable symptoms
1) NOx value not readable with Tech tool
Probable cause
1) Software
2) Internal fault in component
Related products
-
Allison 1000 & 2000 Gen 5 Fault Code:P2761 TCC PCS Control Circuit Open
1000 & 2000 Gen 5 -
Allison 1000 & 2000 Gen 5 Fault Code:P2764 TCC PCS Control Circuit Low
1000 & 2000 Gen 5
-
CAT 3406E (Prefix 1MM or 2WS) Fault Code: 21 PID: SPN: 232 FMI: 4 5 Volt Supply voltage low
3406E (Prefix 1MM or 2WS) -
Volvo Engine D12D AE E3 (Tier 3) Fault Code: PID98 FMI 4 Engine Oil Level
D12D AE E3 (Tier 3) -
Volvo All Engines (2013 Emissions) Fault Code: P05407F PID: EMS Intake Air Heater “A” Control
All Engines (2013 Emissions)