A/T - (4L30E) Control Module Identification

BULLETIN NUMBER
SB96-05-L001

ISSUE DATE
JANUARY 1996

GROUP
TRANSMISSION

4L30-E AUTOMATIC TRANSMISSION/TRANSMISSION CONTROL
MODULE IDENTIFICATION CHART

AFFECTED VEHICLES

1990-91 Trooper II (KT), 1992-95 Trooper (UX), 1991-95.5 Rodeo (UC) models equipped with 4L30-E automatic transmission.

SERVICE INFORMATION

When replacing 4L30-E automatic transmissions or transmission control modules (TCMs), it is important to order the appropriate replacement parts. Failure to pair the proper TCM or transmission with its proper counterpart can result in poor transmission performance.











This Service Bulletin provides important identification data to ensure that a proper pairing of transmission and TCM is always made. Figures 1 through 3 show the typical location of the identification plate on both the transmission and TCM. Figure 1 shows the typical location on transmissions and TCMs manufactured by Bosch for 1990-93 MY vehicles. Figures 2 and 3 show the typical location on transmissions and TCMs manufactured by Delco Electronics for 1994 and 1995-95.5 MY vehicles respectively.











The chart provides an extensive listing of 4L30-E automatic transmissions and their TCM counterparts. When ordering a replacement part, use the chart as shown:

^ Select the appropriate vehicle model, applied date, and engine type in the APPLICATION column.

^ Read the listed transmission model code(s) for that application in the TRANSMISSION MODEL CODE column.

^ Read the actual AIPDN part number for that transmission in the TRANSMISSION PART NUMBER column.

^ Read the proper TCM model code(s) for that application in the TCM MODEL CODE column.

^ Read the actual AIPDN part number for that TCM in the TCM PART NUMBER column.

For parts ordering information, refer to AIPDN Technical Bulletin AIPDN-TEC-LV1-96.