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 communications
8Original wording in English
MERCEDES-BENZ, MERCEDES-MAYBACH
Complaint Yellow coolant warning system message appears in instrument cluster. Fault code P048392 or P048397 present in N127 Powertrain Control Unit. Cause Faulty communication between fan and control unit N127-PTCU. Remedy If other fault codes related to engine fan are present, process these first. Replace engine fan with part …
MERCEDES-BENZ
Complaint Yellow coolant warning system message appears in instrument cluster. Fault code P048392 or P048397 present in N127 Powertrain Control Unit. Cause Faulty communication between fan and control unit N127-PTCU. Remedy Replace engine fan with part as specified in XENTRY parts information. Group 50/015 part 400. Note: Do not…
CHEVROLET, GMC
Hesitation, Stalling, Engine Speed Flare While Coasting, Unintended Acceleration Feel During a Parking Lot Maneuver, Reduced Surge in Low Speed Maneuvers, Stumble, Harsh Tip-In/Tip-Out, Park-Reverse-Drive Shift Concerns, Harsh Shifts, Erratic Shifts, Engine Vibration, Vibration, Buzz and/or Humming from Steering Wheel, Malfuncti…
ISUZU
MALFUNCTION INDICATOR LAMP ILLUMINATED WITH ENGINE COOLING FAN SYSTEM PERFORMANCE DTC P0483 CURRENTLY SET OR STORED IN HISTORY. *KB
Check vehicle applicability
75A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Buick | RAINIER ↗ | 2004 |
| Chevrolet | SILVERADO 1500 ↗ | 2017 |
| Chevrolet | SILVERADO 2500 ↗ | 2017 |
| Chevrolet | SILVERADO 3500 ↗ | 2017 |
| Chevrolet | TRAILBLAZER ↗ | 2004 |
| Chevrolet | TRAILBLAZER ↗ | 2003 |
| Chevrolet | TRAILBLAZER EXT ↗ | 2004 |
| Chevrolet | TRAILBLAZER EXT ↗ | 2003 |
Code meaning and manufacturer information
Original wording in English · Historical directory labels; manufacturer applicability has not been established for every entry.
Cooling Fan Rationality Check 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.