Great Wall diagnostic reference

Explore 19 connection profiles and 886 enhanced definition variants recorded for Great Wall. Reference relationships describe the library, not road-test coverage.

Vehicle and connection profiles

Cannon/Poer/Sahar (2023-) 2.0 DieselGreat Wall · 2023–onward
Cannon/Poer/Sahar (2023-) 2.4 DieselGreat Wall · 2023–onward
Cool Dog / H3 (2022-n.d.)Great Wall · 2022–onward
Dagou / Dargo / Big Dog / 大狗Great Wall
H5 4D20 (Bosch)Great Wall
H5 4D20 (Delphi)Great Wall
H5 4G63TGreat Wall
H5 Gen.2 (2023-) 4C20BGreat Wall · 2023–onward
H5 Gen.2 (2023-) 4D20MGreat Wall · 2023–onward
H7 (2025-) / F7 (2025-) / Shenshou (2025-)Great Wall · 2025–onward
M6 (2021-n.d.)Great Wall · 2021–onward
Mocha / Coffee 01 / 05Great Wall
Tank 300Great Wall
Tank 300 2.0T 4C20B/E20CB + 8AT (2025-n.d.)Great Wall · 2025–onward
Tank 300 2.4 Diesel + 9AT (2025-n.d.)Great Wall · 2025–onward
Tank 300 Hi4T 2.0+9AT+HybridGreat Wall
Tank 400Great Wall
Tank 500 2.0T+HEVGreat Wall
Tank 500 3.0+9ATGreat Wall

Enhanced PID meanings

Browse individual signal meanings, units and exact profile links.

Browse Great Wall enhanced signals

Trouble-code reference families

Euler / Great Wall / Harvard / Haval — Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Source and applicability

OBD Lens production library legacy-owner-2026-10-09-v81. This is a scoped technical reference, not a scan of your car. A catalog relationship does not certify that every ECU, year or engine returns the same signal or code definition.

Read the reference method

OBD Lens reference library · catalog legacy-owner-2026-10-09-v81. Sources and scope