TCU Fails To Code COAPI 1000 General Fault (84 06 05)

Publication date: 2005-06-01
Reference number: 84 06 05

TCU FAILS TO CODE COAPI 1000 GENERAL FAULT

TECHNICAL SERVICE BULLETIN

Reference Number(s): SI B 84 06 05, Date of Issue: June 2005

BMW:	E65, E66 (7 Series) produced from 1/03 to 3/05
GROUP:	84 - Phones, Navigation Systems

Superceded Bulletin(s): S.I. B 84 06 05, Date of Issue: May 2005

NOTE: This Service Information bulletin supersedes S.I. B84 06 05 dated May 2005.

SUBJECT

TCU Fails to Code CoApi 1000 General Fault

SITUATION

When the TCU (Telematics Control Unit) is included in the Measures Plan in CIP and is reprogrammed, the coding fails with "CoApi 1000 General Fault" displayed in the Final Report. At this point some BMW Assist and/or phone functions will not operate correctly.

CAUSE

Vehicles produced from 1/03 to 12/03 may have a faulty TCU embedded phone.
The CIP software (CIP 16.x) may be corrupt after a software update (DVD or Online Update).

PROCEDURE

If coding fails on the original TCU, check the label of the TCU for one of the following part numbers
- 84 11 6 934 101
- 84 11 6 935 268
- 84 11 6 937 678
If the TCU is one of these part numbers then enter into diagnosis using the DIS/GT1. Perform a short test and ensure all control modules are identified.
Select TCU/Diagnosis request and read the ESN and MIN.
If the error message "ERROR_ECU_BUSY_REPEAT_REQUEST COULD NOT READ ESN" is displayed the TCU embedded phone is faulty and the TCU needs to be replaced.
If the ESN and MIN can be read correctly, then continue with the next step.
Recode the TCU with CIP 17.01 or later.
If the TCU needs to be replaced as in step 4 create a PuMA QC-Info.

It is no longer necessary to send the defective TCU to engineering for analysis.