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SI B61 25 17
General Electrical Systems

May 2017
Technical Service

SME - HV BATTERY CELL MODULE VOLTAGE FAULTS
MODEL
F30 PHEV (330e iPerformance)

SITUATION
When diagnosing with ISTA or ISTA Next, a fault code (detailed below), regarding the cell voltage measurement, is
entered in the battery management electronics (SME).
• 21F0C2 - High-voltage battery, cell supervision circuit 1: Voltage measurement (battery cell), line disconnection
• 21F0C3 - High-voltage battery, cell supervision circuit 2: Voltage measurement (battery cell), line disconnection
• 21F0C4 - High-voltage battery, cell supervision circuit 3: Voltage measurement (battery cell), line disconnection
• 21F0C5 - High-voltage battery, cell supervision circuit 4: Voltage measurement (battery cell), line disconnection
• 21F0C6 - High-voltage battery, cell supervision circuit 5: Voltage measurement (battery cell), line disconnection
The customer might not have reported the situation as the fault code could have no effect on the vehicle operation.

CAUSE
Erroneous fault in the fault memory of the SME, possible fault in a cell supervision circuit (CSC) or a cell module.

CORRECTION
Parts replacement depends on analysis as detailed in Procedure below

PROCEDURE
For conditions that are similar to the situation described:
1. Perform diagnosis with the latest version of ISTA.
Are any of the following conditions present?
• One of the indicated faults is currently present in the SME.
• One of the indicated faults was stored 5 or more times.
• One of the indicated faults was stored 2 or more times AND the MIL is illuminated.
YES- go to step 2.
NO – this is an erroneous fault. Ignore the fault code. Delete the fault memory and then re-evaluate the vehicle.
2. Check the HV battery CSC/communication harness for damage.
Was any damage found on the harness?
YES- replace the CSC/communication wiring harness according to repair instructions.
NO – go to step 3.
3. Check the display of the HV battery cell voltages with the Deutronic DBL1200HV module charger.
Can the correct cell voltages be displayed on the module charger?

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YES- replace the affected CSC(s) according to repair instructions.
NO - replace the affected cell module according to repair instructions.

PARTS INFORMATION
Part number

Description

Quantity

61 27 8 649 866

CSC/communications wiring harness

1

61 27 8 667 593

Cell monitoring circuit

1–5

61 27 8 612 161

Cell module, high voltage battery

1–2

61 27 8 612 163

Cell module, high voltage battery

1–3

07 11 9 909 322

Self-locking hex nut

6

07 12 9 908 570

ISA screw

4

61 27 8 626 650

Sealing screw

6

61 27 8 626 643

Seal, high-voltage battery unit

1

61 27 8 625 078

Hexagon screw with torx socket

36

83 19 2 221 349

R134a (Gas 1 oz units)

As needed

83 19 2 287 039

R1234YF (Gas 1 oz units)

As needed

Bulk Materials

WARRANTY INFORMATION
Covered under the terms of the BMW New Vehicle Limited Warranty for Passenger Cars and Light Trucks or the BMW
Certified Pre-Owned Program.
A. Replace CSC/Communication Wiring Harness (Procedure Step 2 – Yes)

Defect Code

6127108100

CSC/Communication Wiring Harness

Labor Operation:

Labor Allowance:

Description:

00 00 006

Refer to KSD2

Performing “vehicle test” (with vehicle diagnosis
system – checking faults) (Main work)

Refer to KSD2

Performing “vehicle test” (with vehicle diagnosis
system – checking faults) (Plus work)

Refer to KSD2

Connect an approved battery charger/power
supply (indicated in KSD 2 as Charging battery)

Work time (WT)

Performing vehicle diagnosis – test module

Refer to KSD2

Removing and installing the high voltage
battery unit (Includes discharging, evacuating
and filling-back air conditioner)

Or:
00 00 556
And:
61 21 528
And, as necessary:
61 00 006
And:
61 25 510
And:

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61 27 566

Refer to KSD2

Replace the communication wiring harness
(High-voltage battery unit removed)

Or:
B. Replacing the affected Cell Supervision Circuit(s) (Procedure Step 3 – Yes)

Defect Code

6127041200

Cell Supervision Circuit(s)

Labor Operation:

Labor Allowance:

Description:

00 00 006

Refer to KSD2

Performing “vehicle test” (with vehicle diagnosis
system – checking faults) (Main work)

Refer to KSD2

Performing “vehicle test” (with vehicle diagnosis
system – checking faults) (Plus work)

Refer to KSD2

Connect an approved battery charger/power
supply (indicated in KSD 2 as Charging battery)

Work time (WT)

Performing vehicle diagnosis – test module

Refer to KSD2

Removing and installing the high voltage
battery unit (Includes discharging, evacuating
and filling-back air conditioner)

Or:
00 00 556
And:
61 21 528
And, as necessary:
61 00 006
And:
61 25 510

And:
B. Replacing the First Cell Supervision Circuit

Labor Operation:

Labor Allowance:

Description:

61 27 541

Refer to KSD2

Replacing cell supervision circuit (High-voltage
battery unit remove) (Top)

Refer to KSD2

Replacing cell supervision circuit (High-voltage
battery unit remove) (bottom)

Or:
61 27 543
And, as required
B. Cell Supervision Circuits 2 to 5

Labor Operation:

Labor Allowance:

Description:

00 50 000

Work time (WT)

Replacing additional supervision circuit cells as
needed

Or:
C. Replacing the affected Cell Module(s) (Procedure Step 3 – No)

Defect Code

6127011200

Cell Module(s)

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Labor Operation:

Labor Allowance:

Description:

00 00 006

Refer to KSD2

Performing “vehicle test” (with vehicle diagnosis
system – checking faults) (Main work)

Refer to KSD2

Performing “vehicle test” (with vehicle diagnosis
system – checking faults) (Plus work)

Refer to KSD2

Connect an approved battery charger/power
supply (indicated in KSD 2 as Charging battery)

Work time (WT)

Performing vehicle diagnosis – test module

Refer to KSD2

Removing and installing the high voltage
battery unit (Includes discharging, evacuating
and filling-back air conditioner)

Refer to KSD2

Replace a cell module (after vehicle diagnosis)
(high-voltage battery unit removed) (Top)

Refer to KSD2

Replace a cell module (after vehicle diagnosis)
(high-voltage battery unit removed) (Bottom)

Refer to KSD2

Replace each additional cell module (after
vehicle diagnosis) (high-voltage battery unit
removed) (Top)

Or:
00 00 556
And:
61 21 528
And, as necessary:
61 00 006
And:
61 25 510
And:
61 27 621
Or:
61 27 623
And, as necessary:
61 27 626*

*When more than one but less than “all” cell modules are replaced, claim labor operation 61 27 626 (one or more
times) for each additional cell module that is replaced.
Or:

Labor Operation:

Labor Allowance:

Description:

61 27 631

Refer to KSD2

Replace all cell modules (after vehicle
diagnosis) (high-voltage battery unit removed)

Labor Operation:

Labor Allowance:

Description:

61 27 900

Refer to KSD2

Final test of the high-voltage battery unit (After
repair of the high-voltage battery unit)

And:
With Items A, B and C.

If you are using a Main labor code for another repair, use the Plus code labor operation 00 00 556 instead.
Refer to KSD2 for the corresponding flat rate unit (FRU) allowances.

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Work time labor operation codes 61 00 006 and 00 50 000 are not considered a Main labor operations; however, they
do require an individual punch times and an explanations on the repair order and in the claim comments section.
And, as necessary:
Sublet – Bulk Materials (excluding R134a or R1234YF)

Sublet Code 4

Reimbursement for the repair-related bulk materials
See sublet reimbursement
(Please do not use the part numbers for claim
calculation below
submission)

Sublet reimbursement calculation for claiming the “used quantities” of repair-related bulk materials (BMW part
numbers) is at dealer net plus your center’s handling.
Enter this material cost in sublet and itemize the amount in the claim comment section.
Overlapping Labor Procedure – Other Repairs
If invoicing the KSD2 flat rate labor operation codes for other repair work results in overlapping labor, for those flat rate
labor operations that are affected, you can now:
• Replace the stated KSD2 “FRU allowance” with a “reduced FRU value” to eliminate the overlapping labor.
For help in identifying the overlapping labor, please refer to the AIR FRU Plausibility Check (Overlapping Labor Tool)
that is located in the AIR Client.
Eligible other repair work being claimed under a different defect code will require separate punch times.
On the repair order and in the claim comment section, please identify and itemize those labor operations being claimed
with a “reduced FRU value.”
[ Copyright ©2017 BMW of North America, Inc. ]

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