DodgeRam.info > TSB's > 08-22-99

TSB 08-22-99

Intermittent Operation Of Oil Pressure Gauge

Visit Geno's Garage
for Truck accessories.
Geno's Garage Truck Accessories

Date: July 2,1999

Models: 1998 (BR/BE) Ram Truck

Discussion:

This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software (calibration changes).  

Symptoms:

Oil Pressure gauge intermittently drops to zero pressure. In addition, the warning chime may sound when the oil pressure gauge drops to zero pressure and the check gauge lamp may come on.  

Diagnosis:

1.    Verify proper engine oil level.

2.    Remove the engine oil pressure sensor and install Oil Pressure Line and Gauge Tool C-3292 with a suitable adapter.

3.    Start the engine and warm to operating temperature.  

CAUTION: IF ENGINE OIL PRESSURE IS ZERO AT IDLE, DO NOT RUN THE ENGINE.

4.    The minimum oil pressure at idle is 68.9 kPa (10 psi). If the pressure is below the specified value, refer to the Mechanical Diagnosis Charts - Diesel Engine located in the 1998 Ram Truck Service Manual, (Publication No. 81-370-8108), page 9-20 for information regarding diagnosis of low engine oil pressure.

5.    If the engine oil pressure is within the proper specifications, 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:

1 04669020 Label, Authorized Software Update
1 04275036 Label, Authorized Modification  

EQUIPMENTREQUIRED:

1 C-3292              Oil Pressure Line and Gauge Tool
1 CH6000             Scan Tool (DRB III")
1 CH7035             General Purpose Interface Bus Cable (GPIB)
1 CH7000/7001    J1962 Cable
1                           MDS2

Repair:

NOTE: THE MDS2 AND DRB III ARE REQUIRED TO PERFORM PART OF THIS REPAIR. THE MDS2 AND DRB III MUST BE OPERATING AT CIS CD2032 OR HIGHER.  

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"

3.    Using the arrow keys, select #2 CONNECT TO MDS1 OR MDS2 on the DRB III MAIN MENU SCREEN.

4.    Using the arrow keys, select #2 RUN MDS2 APPLICATION on the DRB III MAIN MENU SCREEN.

NOTE: ONCE MDS2, DRB III, AND VEHICLE COMMUNICATION HAS BEEN ESTABLISHED, THE CANNOT READ VIN FROM DRB III MESSAGE (ON THE MDS2) WILL BE REPLACED BY THE VEHICLE VIN. PRESS THE "OK" BUTTON ON THE MDS2 TO REQUEST A MDS2 SESSION FOR THE VEHICLE VIN INDICATED. PRESS THE "OK" BUTTON WHEN ASKED TO BEGIN SESSION.

5.    Push the FLASH tab on the MDS2.

NOTE: A MESSAGE MAY APPEAR THAT INDICATES NO UPDATES ARE AVAILABLE. IF THIS OCCURS, MAKE SURE YOUR DIAGNOSTIC EQUIPMENT IS OPERATING AT THE LATEST SOFTWARE LEVEL AS LISTED EARLIER IN THIS BULLETIN. IF THE LATEST SOFTWARE IS INSTALLED, AND NO UPDATES ARE AVAILABLE, ANOTHER VEHICLE CONDITION EXISTS THAT WILL REQUIRE FURTHER INVESTIGATION.

6.    Select READ PART NUMBERS FROM VEHICLE and click SHOW UPDATES on the MDS2.

NOTE: A MESSAGE MAY APPEAR THAT INDICATES NO UPDATES ARE AVAILABLE. IF THIS OCCURS, MAKE SURE YOUR DIAGNOSTIC EQUIPMENT IS OPERATING AT THE LATEST SOFTWARE LEVEL AS LISTED EARLIER IN THIS BULLETIN. IF THE LATEST SOFTWARE IS INSTALLED, AND NO UPDATES ARE AVAILABLE, ANOTHER VEHICLE CONDITION EXISTS THAT WILL REQUIRE FURTHER INVESTIGATION.

7.    Select the new software part number with the light pen and click UPDATE CONTROLLER SOFTWARE.

8.    The MDS2 and DRB III" will prompt for any operator action needed during the remainder of the reprogramming process.

NOTE: THE FOLLOWING STEPS ARE REQUIRED BY LAW
9.    Type the necessary information on the "Authorized Software Update Label" p/n 04669020 (Figure 1). Attach the label to the PCM and cover the label with the clear plastic overlay.

10.   Type the necessary information on the "Authorized Modification Label" p/n 04275086 and attach the label near the VECI label (Figure 2).

notes:

POLICY: Reimbursable within the provisions of the warranty.

TIME ALLOWANCE.
Labor Operation No: 08-19-41-99 .................................................................. 0.5 Hrs.

FAILURE CODE: FM - Flash Module


Thanks to Bob Bergevin for supplying this TSB information

  Top of Page  

  DodgeRam.info Home  

 

This page was edited on: May 3, 2004