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.
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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 wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
P1518STARTER SWITCH CIRCUIT LOW
Manufacturer communications
22Original wording in English
SUBARU
This bulletin announces reprogramming file availability to optimize the Transmission Control Module (TCM) for detection of DTC P1518: STARTER SWITCH CIRCUIT LOW. After using the Remote Engine Starter (RES) to start an applicable vehicle equipped with the Auto Start-Stop System, the TCM may mistakenly detect DTC P1518 when the en…
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, CHEVROLET, GMC
SERVICE ENGINE SOON (SES) LIGHT ON WITH TAC MODULE CODES P1516 AND POSSIBLE CODES P1514, P1515, P1518. *TT
Check vehicle applicability
91A 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 | ESCALADE ↗ | 2006 |
| Cadillac | ESCALADE ↗ | 2005 |
| Cadillac | ESCALADE ↗ | 2004 |
| Cadillac | ESCALADE ↗ | 2003 |
| Chevrolet | AVALANCHE ↗ | 2004 |
Code meaning and manufacturer information
Original wording in English · Historical directory labels; manufacturer applicability has not been established for every entry.
Intake Manifold Runner Control (Stuck Open)
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.