Campaign - Multiple DTC's Due to ECM Software Error

GROUP 12
Engine Electrical

Bulletin Number
12 02 00

Woodcliff Lake, NJ
July 2000
Service Engineering

This Service Information bulletin supersedes S.I. 12 02 00 dated April 2000 AND replaces S.I. 12 21 99 dated September 1999.

PERFORM THE PROCEDURE OUTLINED IN THIS SERVICE INFORMATION ON ALL AFFECTED VEHICLES THE NEXT TIME THEY ARE IN THE SHOP FOR MAINTENANCE OR REPAIRS

SUBJECT:
Thermostat Software and Oxygen Sensor / Misfire Reprogramming

MODEL:
E38 - 740i/iL with M62/M62TU produced 4/97 - 8/99
E39 - 540i/iA with M62/M62TU produced 4/97 - 8/99

Situation:
Customer complains that the "Check Engine" light is illuminated and any or all of the following fault codes may be stored in the Engine Control Module (ECM/DM) as a result of a software error:

-- FC 10 - 02 sensor pre catalyst (Bank 1)
-- FC 12 - 02 sensor post catalyst (Bank 1)
-- FC 18 - 02 sensor pre catalyst (Bank 2)
-- FC 20 - 02 sensor post catalyst (Bank 2)
-- Various misfire faults
-- FC 139 or 140 - Activation Map Cooling

CAUSE:
DME calibration software.

AFFECTED VEHICLES
This Service Action involves E38 and E39 vehicles with M62 / M62TU engines, which were produced from 4/97 to 8/99.

In order to determine if a specific vehicle is affected by this Service Action, it will be necessary to utilize the "Service Menu" of the DCS (Dealer Communication System).

Based on the response of the system, either proceed with the corrective action take no further action.





The Chassis Number Ranges listed are only for informational purposes and are not to be considered as the only deciding factor.

Correction:
Check the DME program number, and if necessary, reprogram the DME.

Note:
With this programming update it is not necessary to replace the Oxygen Sensor(s) whenever any of the previously listed faults are set.

Procedure:
Check the DME program number, and if necessary, reprogram the DME with CD21 or higher:

Note:
If FC 139 or 140 is stored in the DME, check the thermostat wiring and thermostat and repair any malfunctions encountered before reprogramming the DME. Repairs to the wiring and/or thermostat must be claimed under normal warranty procedures.

1. Using the DIS/MODIC, print out the DME identification page.

2. Compare the "Programmed Control Unit" number to the numbers listed below.

1430684 1430964 7501299 7502432
1430694 1430968 7501300 7502439
1430700 1430972 7501301 7502442
1430949 1430982 7502294 7502443
1430950 1430984 7502296 7502448
1430951 1438252 7502302 7502453
1430952 7502331 7502454
1430960 7502430

3. If the "programmed control unit # " matches one of the above listed numbers reprogram the DME with CD21.0 or higher. Adaptation values must be cleared after programming.

4. If the programmed control unit number does not match any of the listed numbers, then no further action is necessary.

LABEL INSTRUCTIONS

This Service Action has been assigned code number 258 After the vehicle has been checked, an corrected if necessary, obtain a label (SD 92-120) and:

a. emboss your BMW dealer warranty number in the middle of the label (1);

b. punch out code number 258 printed on the label and,





c. affix the label to the B pillar a shown.

If the vehicle already has a label from a previous Service Action/Recall Campaign, affix the new label next to the old one. Do not affix one label on top another one because a number from an underlying label could appear in the punched-out hole of the new label.

WARRANTY INFORMATION

Covered under the terms of the applicable BMW Emissions Warranty. Reimbursement for this Service Action will be through campaign entry.





Only one work package can be claimed.