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
6Original wording in English
CADILLAC, CHEVROLET, GMC, HUMMER
SERVICE ENGINE SOON LIGHT AND / OR REDUCED ENGINE POWER MODE DUE TO DIAGNOSTIC TROUBLE CODES P0120, P0220, P1516 AND/OR P1518. THIS CONDITION IS NORMALLY VERY INTERMITTENT. *TT
CHEVROLET, GMC
SERVICE ENGINE SOON LIGHT AND / OR REDUCED ENGINE POWER MODE DUE TO DIAGNOSTIC TROUBLE CODES P0120, P0220, P1516 AND/OR P1518. THIS CONDITION IS NORMALLY VERY INTERMITTENT. *TT
CADILLAC
INTERMITTENT NO POWER, STALL, MALFUNCTION INDICATOR LAMP (MIL) WITH TPS, TAC, TCM DIAGNOSTIC TROUBLE CODES (DTCS) SET P0120, P0121, P0122, P0123, P0220, P0221, P0223, P0225, P0226, P0227, P0228, P0638, P0700, P1779, P1780, P1995, P2119, P2176. *TT
CADILLAC, CHEVROLET, GMC
CHECK ENGINE LIGHT ON WITH NO DRIVABILITY CONCERNS, DIAGNOSTIC TROUBLE CODE P0120, P0220, P1516, OR P1518 SET. *TT
Check vehicle applicability
65A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Buick | RAINIER ↗ | 2006 |
| Buick | RAINIER ↗ | 2005 |
| Buick | RAINIER ↗ | 2004 |
| Cadillac | CTS ↗ | 2003 |
| Cadillac | ESCALADE ↗ | 2006 |
| Cadillac | ESCALADE ↗ | 2005 |
| Cadillac | ESCALADE ↗ | 2004 |
| Cadillac | ESCALADE ↗ | 2003 |
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 B Circuit Malfunction
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.