PACCAR MX (2004 Emissions) Fault Code: P2239 Lambda – Current Too High on ECU (D420) Pin (C45)
PACCAR MX (2004 Emissions) Fault Code: P2239 Lambda – Current Too High on ECU (D420) Pin (C45)
SET CONDITIONS:
The PCI ECU (D420) detects a higher current than expected in the measuring circuit of the lambda sensor.
DIAGNOSTIC CONDITION:
The diagnostic runs continuously when the ignition is keyed on.
RESET CONDITION:
The DTC changes to inactive after the diagnostic runs and passes
POSSIBLE CAUSES:
1. Lambda sensor wiring issue
2. Lambda sensor failure
-
10 IN 1 FOR CAT SIS Caterpillar 2021 Full Service Dealer INCLUDING CAT 2019 C
CAT $110.00Rated 0 out of 5 -
DETROIT DDDL 8.14 SP3 – Detroit Diesel Diagnostic Link 8.14 SP3 2021 ( 1PC )
Detroit $73.00Rated 0 out of 5
-
CAT Engine Reprogramming Tool for flash programming C1.8, C2.4, C3.8 & C3.3B + Guide
CAT $50.00Rated 0 out of 5 -
Bobcat Service Library [03.2019] Service, Operator, Maintenance, Bulletines, etc full update
Bobcat $110.00Rated 0 out of 5 -
Eaton Service Ranger 4.9 Engineering 4.9 [05.2021] Engineering Level ( 1 PC )
Eaton $67.00Rated 0 out of 5
Related products
-
SERVICE MANUAL International Engines MaxxForce 5 (2007 & 2009)
INTERNATIONAL ENGINES $25.00Rated 0 out of 5