SL L4-1.9L DOHC VIN 7 (1992)
PROM - Programmable Read Only Memory: All Technical Service Bulletins
A/T - Harsh Engagement into Reverse
NO.: 91-T-48
DATE:
December, 1991
GROUP:
Transaxle
CORP. NO.: 187111
SUBJECT:
Harsh Engagement into Reverse (New PCM Calibration)
MODELS
AFFECTED: 1992 SL2 Sedans and SC Coupes equipped with MP7 automatic transaxles and vehicle identification number (VIN) NZ113023 and
below.
CONDITION:
A harsh engagement is experienced immediately after shifting into reverse (R).
CAUSE:
The harsh engagement into reverse may be caused by a PCM calibration error. This condition has been corrected on vehicles built after
VIN NZ113023.
Normally the Saturn automatic transaxle will have a 1-3 second delay before engaging into reverse. If a customer comments on a harsh
shift into reverse, with a quick clutch engagement (usually less than one second), then a new calibration may need to be downloaded into
the PCM.
CORRECTIVE
ACTION:
If a harsh/quick engagement is verified, download # 2548 PROD TC CALIBRATION using Saturn Service Stall System and the "How
To Use SSS EEPROM Reprogramming" procedures in the "SSS User Guide."
CLAIM
INFORMATION:
To receive credit for this repair, submit a claim through the Saturn
Dealer System as follows:
Labor
Case
Operation
Type
Description
Code
Time
VW
EEPROM Reprogramming
T9509
0.2 hrs
