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
5Original wording in English
CHEVROLET, OLDSMOBILE, PONTIAC
4T45E 4T40E AUTOMATIC TRANSMISSION FALSE DIAGNOSTIC TROUBLE CODE (DTC) P1815. *TT
CHEVROLET, OLDSMOBILE, PONTIAC
NEUTRAL FLARE AND/OR RPM FLARE WHILE IN DRIVE, NO 1-2 UPSHIFT, SERVICE ENGINE SOON (SES) LIGHT ILLUMINATED, DIAGNOSTIC TROUBLE CODES (DTCS) P1810, DIAGNOSTIC TROUBLE CODE P1815 SET. *TT
CHEVROLET, OLDSMOBILE, PONTIAC
NEUTRAL FLARE AND/OR RPM FLARE WHILE IN DRIVE, NO 1-2 UPSHIFT, SERVICE ENGINE SOON (SES) LIGHT ILLUMINATED, DIAGNOSTIC TROUBLE CODES (DTCS) P1810, DIAGNOSTIC TROUBLE CODE P1815 SET. *TT
SATURN
SERVICE MANUAL UPDATE FOR CERTAIN 2002-2003 MODEL POWERTRAIN ELECTRICAL DIAGNOSTICS SERVICE MANUALS REGARDING DIAGNOSTIC TROUBLE CODES (DTC) P0218, P0711, P0712, P0713, P1810, P1815, P1816, P1817, P1818, P1860 AND P1887. *TT
Check vehicle applicability
39A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Chevrolet | CAVALIER ↗ | 2003 |
| Chevrolet | CAVALIER ↗ | 2002 |
| Chevrolet | CAVALIER ↗ | 2001 |
| Chevrolet | CAVALIER ↗ | 2000 |
| Chevrolet | CAVALIER ↗ | 1999 |
| Chevrolet | CAVALIER ↗ | 1998 |
| Chevrolet | CAVALIER ↗ | 1997 |
| Chevrolet | CAVALIER ↗ | 1996 |
Code meaning and manufacturer information
Original wording in English · Historical directory labels; manufacturer applicability has not been established for every entry.
Transmission 4-Wheel Drive Mode Select Short Circuit To Ground
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.