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.
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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.
U100787malfunction on CAN communication
Manufacturer communications
5Original 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…
HYUNDAI
Certain Tucson Hybrid (NX4 HEV) and Tucson Plug-in Hybrid (NX4 PHEV) vehicles may exhibit a condition where the Oil Pump Unit (OPU) prevents the Ready Lamp from turning on. Some vehicles may also display DTC U100787 (malfunction on CAN communication). Technical Service Bulletin (TSB) 25-01-068H-1 provides instructions to update …
HYUNDAI
Certain Tucson Hybrid (NX4 HEV) and Tucson Plug-in Hybrid (NX4 PHEV) vehicles may exhibit a condition where the Oil Pump Unit (OPU) prevents the Ready Lamp from turning on. Some vehicles may also display DTC U100787 (malfunction on CAN communication). This bulletin provides instructions to perform a software update for the Power…
Check vehicle applicability
4A 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 |
| Hyundai | TUCSON HYBRID ↗ | 2025 |
| Hyundai | TUCSON PLUG-IN HYBRID ↗ | 2025 |
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.