| • | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. | 
| • | Review Strategy Based Diagnosis for an overview of the diagnostic approach. | 
| • | Diagnostic Procedure Instructions provides an overview of each diagnostic category. | 
The engine control module (ECM) compares actual vacuum reading of the manifold absolute pressure (MAP) sensor at idle to a calculated vacuum reading.
| • | The evaporative emission (EVAP) purge canister commanded state is less than 100 percent. | 
| • | The barometric pressure (BARO) is more than 72 kPa. | 
| • | The engine coolant temperature is greater than -10°C (14°F). | 
| • | The intake air temperature (IAT) sensor is greater than -20°C (-4°F). | 
| • | The ignition 1 voltage is between 11-16 volts. | 
| • | The engine has been operating for 2 seconds. | 
| • | The DTC runs continuously when the above conditions are met for 3 seconds. | 
The ECM detects that the actual vacuum reading is more than the calculated vacuum.
DTC P2282 is a Type B DTC.
DTC P2282 is a Type B DTC.
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
| • | The air intake duct system for loose connecting clamps, cracks, or other damage. | 
| • | A damaged throttle body blade or shaft | 
| • | Splits, kinks, or improper connections at the vacuum hoses. | 
| • | An EGR system leak | 
| • | Faulty PCV system operation | 
| • | Carbon deposits on the throttle blade. Refer to Throttle Body Inspection and Cleaning . | 
| • | Vacuum leaks at the intake manifold, throttle body, and injector O-rings . | 
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.