Rad2 Programming With ISTA/P - No Most Communication (09 02 09)
Publication date: 2010-04-26Reference number: 09 02 09
RAD2 PROGRAMMING WITH ISTA/P - NO MOST COMMUNICATION
TECHNICAL SERVICE BULLETIN
| BMW: | E82, E88 (1 Series); E89 (Z4); E90, E91, E92, E93 (3 Series); All vehicles equipped with option 663 (Radio Professional, RAD2) |
| GROUP: | Programming/Coding Explanations |
SUBJECT
RAD2 Programming with ISTA/P - No MOST Communication
SITUATION
When programming a RAD2-equipped vehicle produced from 03/10 on (and earlier produced vehicles with a RAD2 replacement part manufactured from 03/10) with ISTA/P 2.37.1 or later, a message is displayed: "During control module determination, it was ascertained that control modules connected to the MOST ring are not responding", followed by a second message that begins "The gateway GW is likely to be defective......" The user is then asked to perform a gateway repair. After following the on-screen instructions, the measures plan directs to replace all MOST control modules.
CAUSE
The RAD2 GW locks up during identification with ISTA/P 2.37.1 or later, causing no communication on the MOST ring.
PROCEDURE
To avoid the situation above, perform the following steps:
- Only connect an ICOM-A to the vehicle (do not connect an ICOM-B).
- Ignore the message that tells you that the MOST bus is not connected by selecting the OK button (see attachment, page 1).
- Determine the measures plan.
Depending on the situation, follow 1) or 2) below:
- The measures plan shows that MOST modules have to be programmed (see attachment, page 2):
- Hook up the ICOM-B and wait until you have 2 green lights on ICOM-B. Then accept the measures plan. Programming will go through.
- The measures plan shows no MOST modules:
- Accept the measures plan and programming will go through (do not connect the ICOM-B).