ECM Software Under certain conditions, the output signal from the vehicle’s Engine Control Module (ECM) to...

Bulletin number

ESA 24BX

Component

Electrical system: software

Summary

ECM Software Under certain conditions, the output signal from the vehicle’s Engine Control Module (ECM) to the in-tank fuel pump may reduce fuel supply pressure to the fuel rail. If this happens, the Malfunction Indicator Light (MIL) will illuminate, and the DTC code P0087 “Fuel Rail/System Pressure – Too Low Bank 1” will be stored in the ECM. A vehicle with this condition will not pass an IM (emissions) inspection. Please be aware that other conditions (unrelated to the issue described in this action) may cause the MIL in a vehicle to illuminate. Customers should be prepared to cover all diagnosis and repair costs for these other, unrelated conditions.

Owners of these vehicles have filed 10 complaints in the electrical category.