Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.

Ignition - On / Vehicle - In Service Mode
Verify there are no DTCs set related to the following component/system :
- B26 Crankshaft Position Sensor
- B34 Engine Coolant Temperature Sensor
- B52 Heated Oxygen Sensor
- B66 Intake Air Temperature Sensor
- B74 Manifold Absolute Pressure Sensor
- B75C Multifunction Intake Air Sensor
- Q17 Fuel Injector
- Q38 Throttle Body
- Engine Misfire
- Fuel Trim 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
Verify the condition does not exist :
- Air Cleaner Element - Dirty/Water intrusion/Visible Damage
- Intake Air Duct - Loose/Poor Connection/Visible Damage
- Intake Manifold - Leaking
- Positive Crankcase Ventilation System - Dirty/Poor Connection/Restricted - Refer to : Crankcase Ventilation System Inspection/Diagnosis
- Vacuum Hoses - Incorrect connection/Kinked/Leaking/Restricted
- 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 - Refer to : Exhaust Leakage
- Loose Clamps
- Missing components
- Restrictions - Refer to : Restricted Exhaust
- Visible Damage
- If a condition exists
  Repair or replace as necessary
- Go to next step : If no condition exists
Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
Verify DTC P1400 is not set.
- If the DTC sets
  Refer to : Symptoms - Engine Mechanical
- Go to next step : If no DTC is set
All OK.