Electronic Control Unit - Update/Handling Procedures

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TSB #081287
August 12, 1987
TO: ALL RENAULT DEALERS


SUBJECT: MEDALLION ELECTRONIC CONTROL UNIT (ECU) UPDATE


The purpose of this communication is to inform all dealers of the progress of the Medallion ECU retrofit program and to advise them of their responsibilities in making it a success.

FIGURE 1:

FIGURE 2:

All automatic transmission equipped Medallions ordered by dealers on or after July 27, 1987 have been equipped with the latest generation ECU. This can be confirmed by the presence of a daub of paint (A) on the visible end of the clamshell that houses the ECU, as seen in Figure 1 and/or by the presence of the homolagation number HOM 7700 742 979 (B) on the ECU below the part number as seen in the exploded section of Figure 2.
All Renault Dealers

Effective with the receipt of this communication, dealership service personnel must adhere to the following procedures:

NEW PARTS

Any unused (never installed on a vehicle) ECU's P/N 7700 736 396 in Parts Department stock must be returned to the PDC for credit. Do not mark the ECU cover in any way.

FIGURE 3:

IN SERVICE VEHICLES

When an ECU is removed from a vehicle that has been placed in service, indicate this by placing a daub of red paint (C) on the ECU as shown in Figure (3) before returning the part to C.R.E.G.

Note: Don't forget to send the ECU's removed from in service vehicles directly to C.R.E.G. operations per the Mailgram instructions of July 20, 1987.
DEALER STOCK VEHICLES

When an ECU is removed from a vehicle in dealer stock, do not mark the ECU. ECU's removed from vehicles in dealer stock should also be sent directly back to C.R.E.G. as explained in the Mailgram of July 20, 1987.

FIGURE 1:

RETROFIT PROGRAM ECU IDENTIFICATION

When installing an ECU identify the installation by placing a daub of red paint on the clamshell that houses the ECU as shown in Figure (1).
SRT/TIC INFORMATION

Operation Description Number Time TIC

CO. Electronic Control 1245 0.3 0716
Unit - Replace

DCS dealers use warranty type 91.

It is extremely important that all dealership personnel involved in this program be aware of these procedures.

Further communication regarding retrofit of vehicles in your stock will follow shortly.


Warranty Administration

NT080601