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
7Original wording in English
CHEVROLET, GMC
DIAGNOSTIC TROUBLE CODE (DTC) P1172 OR P2636, FUEL GAUGE READS EMPTY, SERVICE ENGINE SOON (SES) LIGHT ON. *TT
CADILLAC, CHEVROLET, GMC
REVISED DIAGNOSTIC TROUBLE CODE (DTC) P1172 AND DTC P2636. *TT
CHEVROLET, GMC
FUEL GAUGE IS FIXED ON EMPTY WITH FUEL IN THE TANKS AND FAULT CODE P1172 IS STORED. *EH
CHEVROLET, GMC
FUEL GAUGE DISPLAYS EMPTY WITH DIAGNOSTIC TROUBLE CODE P1172 OR P2639. *TT
Check vehicle applicability
41A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Cadillac | CTS ↗ | 2003 |
| Cadillac | ESCALADE ↗ | 2005 |
| Cadillac | ESCALADE ↗ | 2004 |
| Cadillac | ESCALADE ↗ | 2003 |
| Cadillac | ESCALADE ↗ | 2002 |
| Cadillac | ESCALADE ↗ | 2001 |
| Chevrolet | AVALANCHE ↗ | 2005 |
| Chevrolet | AVALANCHE ↗ | 2004 |
Code meaning and manufacturer information
Original wording in English · Historical directory labels; manufacturer applicability has not been established for every entry.
Rotor Control Fault
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.