Computer/Controls - DME Module Removal Precautions

Group 12
Engine Electrical

Bulletin Number
12 11 00

Woodcliff Lake, NJ
October 2000
Service Engineering

This bulletin is also issued in Group 24 (Automatic Transmission), S.I. 24 10 00, the contents of which are identical.

SUBJECT:
MS43 [1][2]DME Removal Precautions - EGS Failure Avoidance

MODEL:
All with MS43 control unit

Situation:
The MS43 control module may stay "alive" after the key is off, due to the DM-TL test.

If the following procedure is not followed, irreparable damage to the EGS control module will occur.

PROCEDURE

1. Always verify that the ignition key is in the "off" position before disconnecting the [1][2]DME.

2. Allow, at least, 3 minutes to elapse, after the key was set to the "OFF" position before disconnecting the [1][2]DME. This will allow for sufficient time to complete the DM-TL test.

WARRANTY INFORMATION: For information only