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128 Sid 254-1-1

The document provides diagnostic information for a Volvo vehicle, including a fault code of 128:254 for the engine ECU controller 1. The fault indicates a self-test error in the engine control unit based on detection conditions of FMI 3, 8, or 12. The symptoms include warning lights and sounds and an engine that does not start. The recommended action is to reprogram the control unit and replace it if the fault persists.

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Khinmg Aye 554
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695 views1 page

128 Sid 254-1-1

The document provides diagnostic information for a Volvo vehicle, including a fault code of 128:254 for the engine ECU controller 1. The fault indicates a self-test error in the engine control unit based on detection conditions of FMI 3, 8, or 12. The symptoms include warning lights and sounds and an engine that does not start. The recommended action is to reprogram the control unit and replace it if the fault persists.

Uploaded by

Khinmg Aye 554
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Volvo Guided Diagnostics

Date: Information Type:


30-Nov-17 Diagnostics Fault Codes 128: Engine ECU 254: Controller 1
Profile:
EC290B LC Volvo

MID128 SID254 / 128 SID254


Showing Selected Profile

Valid for serial numbers


Model Production site Serial number start Serial number stop
EC290B LC Volvo Changwon 17001 30000

SAE code
MID/Control Unit MID128 Engine ECU
PID/PPID/SID/PSID SID254 Controller 1
Machine display message
Text presentation 128 SID254

Reference

Fault mode diagnosis

Fault mode Detection conditions:The engine control unit (E-ECU) registers: Self-test error in engine
FMI 3 control unit
FMI 8 Symptom: Possible causes:
FMI 12
¡ Red central warning ¡ Internal error in the engine control
¡ Buzzer sounds continuously unit
¡ Error message screen
¡ Engine does not start

Action Reprogram the control unit


If the fault remains:
Replace the control unit (internal fault in the control unit)

Guided Diagnostics

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