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.
P1A77HSG Belt slip
Manufacturer communications
4Original wording in English
KIA
TECHNICAL SERVICE BULLETIN: MQ4 P/HEV GAMMA 1.6L T-GDI ECM & HCULDC LOGIC IMPROVEMENT FOR OIL DILUTION: This bulletin provides the procedure to update the software logic of the 'Engine' and Hybrid Control Unit Low DC-DC Converter 'HCULDC' systems on certain 2021-2023MY Sorento HEV, PHEV (MQ4 P/HEV) w/ Gamma 1.6L T-GDI vehicles p…
HYUNDAI
This bulletin provides information related to the Engine Control Module (ECM) software update for Santa Fe Hybrid (TM HEV) / Santa Fe Plug-In Hybrid (TM PHEV) vehicles to revise the following DTC logic: • P1441(PCSV rear and hose missing) • P1A77(HSG Belt slip) • P00B7(Excessive ITM motor operating current) • P2118 (ETC target p…
HYUNDAI
This bulletin provides information related to the Engine Control Module (ECM) / Hybrid Control Unit (HCU) software update for Tucson Hybrid (NX4 HEV) / Plug-in Hybrid (NX4 PHEV) vehicles to improve the following DTC and symptoms: 1. P1441 (EVAP System Flow During Non-Purge Condition) a. Misdiagnosis due to insufficient margin of…
HYUNDAI
This bulletin provides information related to the Engine Control Module (ECM) software update for Santa Fe Hybrid (TM HEV) / Santa Fe Plug-In Hybrid (TM PHEV) and Tucson Hybrid (NX4 HEV) / Tucson Plug-In Hybrid (NX4 PHEV) vehicles to revise the following DTC logic: • P1441(PCSV rear and hose missing) • P1A77(HSG Belt slip) • P00…
Check vehicle applicability
9A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Hyundai | SANTA FE HYBRID ↗ | 2022 |
| Hyundai | SANTA FE HYBRID ↗ | 2021 |
| Hyundai | SANTA FE PLUG-IN HYBRID ↗ | 2022 |
| Hyundai | TUCSON HYBRID ↗ | 2022 |
| Kia | SORENTO HYBRID ↗ | 2023 |
| Kia | SORENTO HYBRID ↗ | 2022 |
| Kia | SORENTO HYBRID ↗ | 2021 |
| Kia | SORENTO PHEV ↗ | 2023 |
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.