Error Message On Electronic Display Unit (EDU) (10/91-0142)

WARNING: This page is about the 9000 S, Automatic, which is a different variant/trim than selected.

Publication date: 1991-10-01
Reference number: 10/91-0142

ERROR MESSAGE ON ELECTRONIC DISPLAY UNIT (EDU)

TECHNICAL SERVICE BULLETIN

Reference Number(s): 10/91-0142, Date of Issue: October 1991

SAAB:	9000 Models
CATEGORY:	Electrical

SUBJECT

Error Message on Electronic Display Unit (EDU)

SERVICE INFORMATION

In certain Cases, it is possible for the electronic display unit (EDU) in 9000 models to display an error message with an oil temperature symbol or it could display an error message for "sport normal." When diagnosed with ISAT, Fault Code 46222/26222 is retrieved. Neither of these "false" error displays (oil temperature symbol and sport normal) necessarily means that there is something wrong with the unit.

Some EDU's have possible future functions incorporated into their logic. The EDU is trying to read a signal that is not present, therefore an error message is generated. If for any reason the EDU is not properly programmed from the factory to ignore these future functions, the EDU will try to read a signal that the car is not capable of generating.

Should this situation be encountered, the following procedure will eliminate future occurrences.

SERVICE PROCEDURE

Use ISAT (on the green ISAT tester connection) to make contact with the EDU (DIAG, ONE, 1, ON/ENTER).
Program the EDU with ISAT command codes 206 (type of fuel system) and 208 (selecting the appropriate EDU and equipment type).
Use the Reset feature in ISAT to clear all fault codes.
Terminate communication using the terminate function.
Turn ISAT off.
Turn car off.

When the car is restarted, the error display will be erased.

Fig 1: Electronic Display Unit (EDU)

WARRANTY INFORMATION

If a customer complaint requires clearing these fault Codes, you may submit a claim using Failure Coding 38138-67-0-01-08. Time Allowance is Operation No. 12316 (0.3 hour)