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Hybrid - CCM 585 Hybrid Malfunction Following ECM Update

SI B61 07 12
General Electrical Systems

February 2012
Technical Service

SUBJECT
"Hybrid Malfunction" Check Control Message

MODEL
F04 (ActiveHybrid 7) produced up to March 2012

SITUATION
Check control message (CCM) 585, "Hybrid Malfunction", may be present intermittently following vehicle programming with ISTA/P 2.41.4 or later.

This CCM is very intermittent, yet may appear within a few miles of this software update. However, it could take as long as several thousand miles following programming to occur.

In most cases, no functional problems are present that affect the operation of the vehicle.

In very isolated cases, a functional fault may be present in which the vehicle could exhibit an intermittent no-start condition of the combustion engine. This can be rectified by allowing the vehicle to enter sleep mode and then attempting to restart the engine.

When the above CCM condition is present, the following fault will be stored in the SME:

21F139 - SME: HW switch-off logic enabled

This fault may be accompanied by additional EME/SME faults.

CAUSE

Software error beginning with ISTA\P 2.41.4 (I-level F001-11-03-511)

CORRECTION

Program the complete vehicle with ISTA/P 2.46.0 (I-level F001-12-03-500) or later.

NOTE:
ISTA/P 2.46.0 will not be available until March 2012.

PROCEDURE

Determine the current software level of the vehicle (See the "Integration Level Dealer" section in the SAM Key Data/Print Key Data).

Interrogate the fault memory to ensure the condition is the same as the one shown in the Situation section.

Note:
When the ISTA system message displays: Battery voltage only "XX.XX" V. Please connect charger. Please note the displayed battery voltage reading in the repair order comments section.

A. If no functional problems are present, clear the fault memory and ask the customer to bring the vehicle back in March, once the updated software is available.

B. If any functional problems or additional symptoms are present, please submit a PuMA case for additional technical support.





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