April 5, 2026: LEMON Manuals is launched! Read the announcement.

Programming Or Replacing The Engine Control Module (ECM)

Fig 1: Identifying Ignition OFF

GLL101045

Courtesy of VOLVO CARS CORPORATION

Ignition off.
The engine control module (ECM) has registered an internal fault or a fault in the software. Try downloading new software into the engine control module (ECM). To download new software or replace the engine control module (ECM), see ENGINE CONTROL MODULE (ECM), REPLACING . If software cannot be downloaded or new software does not solve the problem, replace the engine control module (ECM) and download the relevant software for the new engine control module (ECM).

NOTE:
After downloading the software or replacing the engine control module (ECM), the throttle unit must be adapted according to vehicle communication socket: "Throttle unit adaptation".

Remedy as necessary.

Fig 2: Engine Control Module
Courtesy of VOLVO CARS CORPORATION

Continue
Refer to INFORMATION