Reference meaning
What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Narrow by vehicle
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Scan worksheet →Manufacturer communications
17Original wording in English
BUICK, CHEVROLET
This Preliminary information communicates to the technician the diagnostic direction necessary to address MIL illumination with DTCs P0121, P0299, P1101 or P00C7.
BUICK, CADILLAC, CHEVROLET, GMC, HUMMER, PONTIAC, SAAB
This PI was superseded to update model years and add information concerning idle surge, reduced engine power mode, and/or DTCs P0068, P0121, P1516, P2101, P2119, and/or P2176 that may be experienced on high mileage vehicles. Please discard PIP4578.
CADILLAC
17096 - Service Update. Certain vehicles, may have a condition in which the engine air filter element does not have glue beads across the paper pleating. If this condition is present the pleats can fold over on themselves during high-RPM aggressive driving, and restrict the airflow, which may collapse the air duct and cause the …
CADILLAC
This Preliminary Information communication provides information to the technician about vehicles that the engine may shut off after wide open throttle maneuvers also the Service Engine Soon Malfunction Indicator Lamp on. Technician may find Diagnostic Trouble Codes P0121, P2101 and P2119 set. Dealer should inspect the air-filter…
Check vehicle applicability
270A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Code meaning and manufacturer information
Original wording in English · Historical directory labels; manufacturer applicability has not been established for every entry.
Throttle/Pedal Position Sensor/Switch A Circuit Range/Performance Problem
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.