Circuit/System Verification
WARNING: This page is about a different variant/trim than selected.
- Verify DTC U029D, U029E is not set.
- If the DTC is set
- Go to next step: If the DTC is not set
- Verify there are no DTCs set related to the following component/system:
- A38 Reductant Pump and Sensor Assembly
- B9 Ambient Air Temperature Sensor
- B17 Barometric Pressure Sensor
- B34 Engine Coolant Temperature Sensor
- B65 Intake Manifold Pressure and Air Temperature Sensor
- B131 Exhaust Temperature Sensor
- B154 Diesel Particulate Filter Exhaust Differential Pressure Sensor
- B195 Nitrogen Oxides Sensor
- B212 Reductant Sensor Module
- B345R Exhaust Pressure Differential Sensor - Exhaust Gas Recirculation
- E52 Reductant Line Heater
- E53 Reductant Tank Heater
- K20 Engine Control Module
- K115 Reductant Control Module
- M103 Turbocharger Vane Position Actuator
- M122 Exhaust Pressure Control Valve Actuator
- Q14A Exhaust Gas Recirculation Valve 1
- Q14B Exhaust Gas Recirculation Valve 2
- Q17 Fuel Injector
- Q38 Throttle Body
- Q61 Reductant Injector
- If a related DTC is set
- Refer to: Diagnostic Trouble Code (DTC) List - Vehicle
- Perform the following procedure/test: Reductant System Malfunction Service Bay Test
- Diagnose other DTCs first..
- If the procedure/test does not pass
Refer to: Circuit/System Testing
- Go to next step: If the procedure/test passes
Go to next step: All OK.
- If the procedure/test does not pass
- Go to next step: If a related DTC is not set
- Verify DTC P20EE, P249D, P249E, P2BAD is not set.
- If the DTC is set
Refer to: Circuit/System Testing
- Go to next step: If no DTC is set
- If the DTC is set
- All OK.