Circuit/System Verification
WARNING: This page is about a different variant/trim than selected.
- Verify there are no DTCs set related to the following component/system :
- B9 Ambient Air Temperature Sensor
- B14A Transmission Output Shaft Speed Sensor
- B26 Crankshaft Position Sensor
- B34 Engine Coolant Temperature Sensor
- B115 Vehicle Speed Sensor
- Exhaust Aftertreatment System
- Fuel System
- Induction System
- If a related DTC is set
Refer to : Diagnostic Trouble Code (DTC) List - Vehicle
- Go to next step : If a related DTC is not set
- Ignition - On / Vehicle - In Service Mode
- Verify the scan tool parameter : MAF Sensor = 0 to 0.2 g/s
- If not between 0 and 0.2 g/s
Refer to : DTC P0101-P0103
- Go to next step : If between 0 and 0.2 g/s
- If not between 0 and 0.2 g/s
- Engine - Running
- Verify the scan tool parameter : MAF Sensor = 5 to 40 g/s
- If not between 5 and 40 g/s
- Verify the following conditions do not exist :
- B75 Mass Air Flow Sensor - Contamination of the measuring element/Water intrusion
- Intake Air Duct - Cracked/Leaking/Loose Clamps/Restrictions/Visible Damage
- If a condition exists - Repair or replace as necessary
- If no condition exists - Refer to : Diesel Particulate Filter (DPF) Service Regeneration
- Go to next step : If between 5 and 40 g/s
- Verify the following conditions do not exist :
- B74 Manifold Absolute Pressure Sensor - Flow Restricted
- Q14 Exhaust Gas Recirculation Valve - Binding or Sticking
- If a condition exists
Repair or replace as necessary
- Go to next step : If no condition exists
- Verify a condition does not exist with the component : Exhaust System - Leaking/Missing components/Restricted - Refer to : Exhaust Leakage
- If a condition exists
Repair or replace as necessary
- Go to next step : If no condition exists
- If a condition exists
- Perform the following procedure/test : Fuel Injector Balance Test
Verify the procedure/test passes.
- If the procedure/test does not pass
Replace the component that failed the test : Q17 Fuel Injector
- Go to next step : If the procedure/test passes
- If the procedure/test does not pass
- Test or replace the component : B195A Nitrogen Oxides Sensor 1