On the Mercedes Freightliner Sprinter engine, ECU 128 is not a fault code; it just refers You to the electronic control unit, where Your fault code will lie.
What does BH164 mean?
BH164. Bulkhead Module. PID/SID FMI)
What is MCM fault codes Freightliner?
Description This fault Code Sets When the Motor Control Module (MCM) Detects That the EGR Temperature After the EGR Cooler is Not Within a Threshold. Typical Enabling Conditions Engine Coolant Temperature Greater than 65C (149F).
What does ECU 128 mean on a Freightliner?
On the Mercedes Freightliner Sprinter engine, ECU 128 is not a fault code; it just refers You to the electronic control unit, where Your fault code will lie. If You’re seeing ECU 128, You should be able to get more information about the fault code which is being set.
What is a bulkhead module on a Freightliner?
General Information. The Bulkhead Module (BHM) is the primary module of the vehicle electrical system, and controls the operation of the other multiplex modules in the system and a variety of other vehicle components either directly or indirectly.
What are FMI codes?
The FMI is used along with the SPN to provide specific information that relates to a diagnostic trouble code (DTC). The FMI may indicate that a problem with an electronic circuit or an electronic component has been detected.
What does ACM stand for on a Freightliner Cascadia?
MCM (Motor Control Module) will be bolted onto the side of the engine (size: 11.5 wide x 8 deep by 2 tall). ACM (Aftertreatment Control Module) the ACM looks just like the MCM and will be located near the emission control equipment on the frame rail or a mounting bracket.
What does Freightliner check engine light mean?
A Generally a yellow “Check Engine” light tells you that there is a problem that needs checked out. If the yellow light stays on, it means that whatever it is happening is actively happening. If the light comes on then goes out, it means the problem happened but went a way or corrected itself.
What is SPN and FMI?
Suspect Parameter Number (SPN) Represents the SPN with error. Every defined SPN can be used in a DTC. Failure Mode Identifier (FMI) Represents the nature and type of error that occurred, e.g., value range violation (high or low), sensor short-circuits, incorrect update rate, calibration error.
What is a Freightliner Smart Switch?
Smart switches are optional low-current switches that are connected. to the Bulkhead Module (BHM) or to an optional Switch Expansion Module (SEM) on a Business Class M2 vehicle. A smart switch is used to activate an optional feature on the vehicle.
What is SA 33 bulkhead code?
J1939 faults consist of the following, in this order: Source Address (SA) Identifies which ECU the fault is coming from. The J1939 SA identifying all Bulk- head Module faults is 33. Suspect Parameter Number (SPN) Indicates what function on the ECU has failed.
Where is the bulkhead module on a Freightliner M2?
NOTE: The bulkhead module is located on the frontwall slightly below and outboard of the steering column.
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