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.
U116000A bus keepawake event has been detected
U116000A bus keepawake control unit has been detected
U116000“A bus keepawake control unit has been detected” Cause Possible water entry into connector X279x1 Remedy Immediately disconnect electrical connector X279x1 and create a TIPS case
Manufacturer communications
12Original wording in English
HYUNDAI
Certain Palisade Hybrid (LX3 HEV) vehicles may illuminate the Malfunction Indicator Lamp (MIL) and display a false “Check Hybrid System” warning message after use of Bluelink Remote Start following extended parking periods. Related DTCs associated with the MIL include U116087, U016487, U100787, U012987, U010087, U100387, U100287…
HYUNDAI
Certain Palisade Hybrid (LX3 HEV) vehicles may illuminate the Malfunction Indicator Lamp (MIL) and display a false “Check Hybrid System” warning message after use of Bluelink Remote Start following extended parking periods. Related DTCs associated with the MIL include U116087, U016487, U100787, U012987, U010087, U100387, U100287…
MERCEDES-BENZ
Complaint Customer states that either the yellow battery indicator lamp is illuminated in the instrument cluster OR a 4MATIC malfunction MIL is present, AND the subject vehicle is affected by the pending recall “Replace Transmission Wiring Harness” (NHTSA ID 24V445). The following DTCs may also be present in the initial quick te…
MERCEDES-BENZ
Complaint In the instrument cluster, the symbol for "12 V battery" and the message "Switch on vehicle" may sporadically be displayed. As a consequence of this, the fault codes B1FCB97 (=> N73/3) and U116000 (=> N73/3*1) are stored in the fault memory. In the subsequent analysis of the 12 V on-board electrical system data, the fo…
Check vehicle applicability
126A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Hyundai | IONIQ 9 ↗ | 2026 |
| Hyundai | PALISADE HYBRID ↗ | 2026 |
| Mercedes-Benz | AMG C43 ↗ | 2024 |
| Mercedes-Benz | AMG C43 ↗ | 2023 |
| Mercedes-Benz | AMG C43 ↗ | 2022 |
| Mercedes-Benz | AMG C63 S ↗ | 2023 |
| Mercedes-Benz | AMG C63 S ↗ | 2022 |
| Mercedes-Benz | AMG C63 S E ↗ | 2023 |
Code meaning and manufacturer information
Original wording in English · Historical directory labels; manufacturer applicability has not been established for every entry.
SCP (J1850) Invalid or Missing Data for Primary Id
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.