RAM 2500 Truck 2WD L6-359 5.9L DSL Turbo VIN D FI (1997)
PROM - Programmable Read Only Memory: Customer Interest
EGR System Failure With Hex Code #2E on 5.9L Diesel
NO: 18-25-97
GROUP: Vehicle Performance
DATE: Aug. 15, 1997
SUBJECT:
EGR System Failure with Hex Code $2E on 5.9L Diesel
MODELS:
1996 - 1997
(BR) Ram Truck
NOTE:
THIS BULLETIN APPLIES TO VEHICLES EQUIPPED WITH A 5.9L CUMMINS DIESEL ENGINE BUILT BETWEEN JAN. 1, 1996 (MDH
0101XX) AND DEC. 31, 1996 (MDH 1231XX) AND CALIFORNIA EMISSIONS SALES CODE NAE
SYMPTOM/CONDITION:
While performing other diagnostics, the technician may notice Hex Code $2E - EGR SYSTEM FAILURE on the Diagnostic Scan Tool (DRB III). The
customer may or may not experience any engine driveability symptoms. The Malfunction Indicator lamp (MIL) will not be illuminated.
DIAGNOSIS:
Using the Mopar Diagnostic System (MDS) or the Diagnostic Scan Tool (DRB III) with the appropriate Diagnostic Procedures Manual, verify all engine
systems are functioning as designed. If Diagnostic Trouble Codes (DTC's) other than those listed are present, record them on the repair order and repair
as necessary before proceeding further with this bulletin. If no DTC's other than those listed above are present, perform the Repair Procedure.
NOTE:
WHENEVER A POWERTRAIN CONTROL MODULE (PCM) IS REPLACED, DUE TO FAILURE, THE SOFTWARE OF THE
REPLACEMENT PCM SHOULD BE VERIFIED FOR THE LATEST REVISION LEVEL.
PARTS REQUIRED:
1
CH6000
Scan Tool (DRB III)
1
CH7035
General Purpose Interface Bus Cable (GPIB)
1
CH7000/7001
J1962 Cable
1
04669020
Label - Authorized Software Update
1
04275086
Label - Authorized Modification
NOTE:
THE MDS AND DRBIII ARE REQUIRED TO PERFORM THIS REPAIR AND THE SYSTEM MUST BE OPERATING WITH RELEASE 21
OR HIGHER AND TIL CD RELEASE 1138 OR HIGHER MUST BE INSTALLED.
REPAIR PROCEDURE:
This bulletin involves using revised test procedures to diagnose the EGR system and selectively erase and reprogram the Powertrain Control Module
(PCM) with new software (calibration changes) for the condition listed.
NOTE:
MAKE ANY NECESSARY REPAIRS BASED ON THE REVISED DIAGNOSTIC PROCEDURE BEFORE FLASH PROGRAMMING THE
PCM.
