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
1Original wording in English
FORD
SOME 2017 F-SERIES SUPER DUTY PICKUPS EQUIPPED WITH A 6.7L ENGINE AND A REAR AUXILIARY POWER POINT MAY EXHIBIT A ILLUMINATED MALFUNCTION INDICATOR LAMP (MIL) WITH DIAGNOSTIC TROUBLE CODES (DTCS) P1261, P1262, P1263, P1264, P1265, P1266, P1267 AND/OR P1268. IF FREEZE FRAME INDICATES DTCS SET BELOW 600 RPM AND THERE ARE NO DRIVABI…
Check vehicle applicability
6A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Ford | F-250 SD ↗ | 2017 |
| Ford | F-350 SD ↗ | 2017 |
| Ford | F-450 SD ↗ | 2017 |
| Ford | F-550 SD ↗ | 2017 |
| Ford | F-650 SD ↗ | 2017 |
| Ford | F-750 SD ↗ | 2017 |
Code meaning and manufacturer information
Original wording in English · Historical directory labels; manufacturer applicability has not been established for every entry.
Cylinder #5 High To Low Side Short
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.