RAM 2500 Truck 2WD V8-5.2L VIN Y (2000)
Technical Service Bulletin # 18-23-99
Date: 991115
MIL ON, Erroneous DTC P0172 Set
NUMBER: 18-23-99
GROUP: Vehicle Performance
EFFECTIVE DATE: Nov. 15, 1999
SUBJECT:
Erroneous Mil Due To P0172 - 1/1 Fuel System Rich
OVERVIEW:
This bulletin involves selectively erasing and reprogramming the JTEC Powertrain Control Module (PCM) with new software (calibration change
OOCal11A).
MODELS:
2000 (BR/BE) Ram Truck
NOTE:
THIS INFORMATION APPLIES TO FEDERAL EMISSIONS VEHICLES (NAA) EQUIPPED WITH A 5.2L GASOLINE ENGINE AND
AUTOMATIC TRANSMISSION BUILT BEFORE SEPTEMBER 20, 1999 (MDH 0920XX).
SYMPTOM/CONDITION:
The customer may experience a Malfunction Indicator Lamp (MIL) illumination due to an erroneous Diagnostic Trouble Code (DTC) P0172 - 1/1 Fuel
System Rich. Prior to the MIL illumination, the customer will not experience any vehicle performance issues. This condition may occur more frequently
during hot ambient temperatures.
DIAGNOSIS:
Using the Mopar Diagnostic System (MDS2) and/or the Diagnostic Scan Tool (DRB III) with the appropriate Diagnostic Procedures Manual, verify all
engine/transmission systems are functioning as designed. If Diagnostic Trouble Codes (DTC's) are present, record them on the repair order and repair as
necessary before proceeding further with this bulletin. If no other DTC's are present, and the above symptoms have been experienced, perform the Repair
Procedure.
NOTE:
WHENEVER A POWERTRAIN CONTROL MODULE (PCM) IS REPLACED DUE TO FAILURE, THE SOFTWARE OF THE
REPLACEMENT CONTROLLER MUST BE VERIFIED FOR THE LATEST REVISION LEVEL. USE THE FLASH PROCEDURE TO
UPDATE REPLACED CONTROLLERS AS NECESSARY.
PARTS REQUIRED:
1
04669020
Label, Authorized Software Update
1
04275086
Label, Authorized Modification
EQUIPMENT REQUIRED:
1
CH6000
Scan Tool (DRB III)
1
CH7035
General Purpose Interface Bus Cable (GPIB)
1
CH7000/7001
J1962 Cable
1
MDS2
NOTE:
THE MDS2 AND DRB III ARE REQUIRED TO PERFORM PART OF THIS REPAIR. WHEN USING THE MDS2 AND THE DRB III,
THE SYSTEM MUST BE OPERATING AT CIS CD 2045 OR HIGHER.
POLICY: Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
Labor Operation No:
08-19-43-94
0.5 Hrs.
FAILURE CODE: FM - Flash Module
Repair Procedure
1.
Log onto the MDS2 system.
2.
Connect the MDS2 (Mopar Diagnostic System) and DRB III (Scan Tool) to the vehicle and switch the ignition key to "ON".
