Hongqi ECU Modules and Addresses

Observations from the map

The Hongqi map ranks 31 with 10 definitions; the largest module types are: ecu_module (4), airbag / srs module (1), body control module (1).

10 of the addresses use 11-bit CAN identifiers and 0 use 29-bit identifiers. 1 definitions have scan priority 1; priority decides which module a scan starts from.

The map contains 1 safety-critical module definitions (ABS/brakes and airbag). Opening a diagnostic session on these can turn on a warning lamp; the vehicle must not be driven during the operation.

Modules in the map

Module name	Type	Address	Response	Priority
Engine	Engine Control Unit	`7E0`	`7E8`	1
Transmission	Transmission Control Unit	`7E1`	`7E9`	2
SRS/Airbag safety-critical	Airbag / SRS Module	`720`	`728`	4
BCM	Body Control Module	`750`	`758`	5
Gateway	Gateway Module	`780`	`788`	6
ACM	Climate Control Module	`7D1`	`7D9`	12
Digital Key	—	`76F`	`777`	43
T-Box	—	`773`	`77B`	44
IVI	—	`770`	`778`	48
IVI2	—	`771`	`779`	49

← ECU maps by make

See the modules in your vehicle

With an ELM327-based BLE OBD2 adapter, CarCoding scans the vehicle’s modules, reads fault codes from those it can reach and explains every code in plain language. Which modules are reachable depends on the make and on the vehicle. The app is free to download.

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Some advanced features require an in-app purchase.

Data source: the CarCoding ECU scan map (ecuDatabase.ts). The addresses and names in the table are definitions from the map; they can differ depending on the hardware and software version in your vehicle.

Disclaimer: This page offers general information and does not replace an inspection by a qualified workshop. Any work carried out on the vehicle is your own responsibility.