Engine - Surge/Lack of Power/Erratic A/T Shifts
NUMBER: 18-006-02 REV. AGROUP: Vehicle Performance
DATE: February 25, 2002
THIS BULLETIN IS BEING PROVIDED IN ADVANCE. THE MDS2 MUST BE OPERATING WITH CIS/ISIS CD2103 OR HIGHER, AVAILABLE MARCH 18, 2002.
THIS BULLETIN SUPERSEDES TECHNICAL SERVICE BULLETIN 18-006-02, DATED MARCH 4, 2002, WHICH SHOULD BE REMOVED FROM YOUR FILES. THIS IS A COMPLETE REVISION AND NO ASTERISKS HAVE BEEN USED TO HIGHLIGHT REVISIONS.
SUBJECT:
Flash: Surge, Lack of Power in 3rd Gear, and No 3/4 Upshift After 4/3 Downshift
OVERVIEW:
This bulletin involves selectively erasing and reprogramming the JTEC Powertrain Control Module (PCM) with new software (00Cal19 and 01Cal18).
MODELS:
2000 - 2001 (BE/BR) Ram Truck
NOTE:
THIS BULLETIN APPLIES TO 2000 AND 2001 (BE/BR) RAM TRUCKS EQUIPPED WITH A 5.2L, 5.9L, OR 8.0L ENGINE AND CALIBRATION LEVEL PRIOR TO (LESS OR LOWER THAN) THOSE LISTED IN THE OVERVIEW ABOVE.
SYMPTOM/CONDITION:
Some vehicles may exhibit one or more of the following performance conditions:
1. Perceived lack of power in third gear due to converter lock-up.
2. Surge after lock-up (40-45 m.p.h.) This reprogramming raises torque converter lock-up speed to 52 m.p.h.
NOTE:
# 2 ABOVE APPLIES ONLY TO THE BE/BR 1500 4X4 EQUIPPED WITH THE 3.55 REAR AXLE.
3. Transmission does not upshift from 3rd gear after a 4/3 downshift. (Most often noticed when cruise control is engaged.)
NOTE:
# 3 ABOVE APPLIES ONLY TO 2000 MODEL YEAR (BE/BR) TRUCKS.
PARTS REQUIRED:
EQUIPMENT REQUIRED:
REPAIR PROCEDURE:
1. Flash the controller using the MDS2 (Mopar Diagnostic System) and DRBIII(R)
NOTE:
DUE TO THE PCM REPROGRAMMING PROCEDURE, A DTC MAY BE SET IN OTHER MODULES (EATX, BCM, MIC, SKIM, ETC.) WITHIN THE VEHICLE, IF SO EQUIPPED. SOME DTC'S MAY CAUSE THE MIL TO ILLUMINATE.
ALL DTC'S RELATE TO A LOSS OF COMMUNICATIONS WITH THE MODULE THAT IS BEING REPROGRAMMED. CHECK ALL MODULES, RECORD THE FAULTS, AND ERASE THESE FAULTS PRIOR TO RETURNING THE VEHICLE TO THE CUSTOMER. ERASE ANY FAULTS IN THE PCM ONLY AFTER ALL OTHER MODULES HAVE HAD THEIR FAULTS ERASED.
NOTE:
THE FOLLOWING STEPS ARE REQUIRED BY LAW.
2. Type the necessary information on the "Authorized Software Update Label" p/n 04669020 (Fig. 1). Attach the label to the PCM and cover the label with the clear plastic overlay.
3. Type the necessary information on the "Authorized Modification Label" p/n 04275086 and attach the label near the VECI label (Fig. (STEP # 3)).
POLICY:
Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
FAILURE CODE: