Technical Service Bulletin: 2001 5.9 L Cummins Oil Pressure
Description
Reference Number(s): 09-001-01, Date of Issue: February 16, 2001
| Group: | Engine |
| Dodge: | 2001 (BR/BE) Ram Truck |
Details
SUBJECT
Intermittent Loss Of Oil Pressure Sensor Output Voltage
OVERVIEW
This bulletin involves selectively erasing and reprogramming the Engine Control Module (ECM) with new software (calibration level 01Version 5.9.T7).
SYMPTOM/CONDITION
The output voltage of the oil pressure sensor may intermittently dropout. When this occurs the sensor output voltage may remain low until the ignition switch is recycled. This condition may cause the engine oil pressure gauge needle to erroneously indicate lower than actual oil pressure. A warning chime may sound and the “Check Gauges” lamp may illuminate.
The Engine Control Module (ECM) software has been revised to address this condition. Replacing the oil pressure sensor will not correct this condition.
DIAGNOSIS
- Verify proper engine oil pressure using a mechanical test gauge. Refer to the 2001 Ram Truck Service Manual (81-370-1008), Group 9 – Engine (page 9-295) for additional technical assistance.
- If proper engine oil pressure is verified and the ECM software is earlier (less or low) than 01Version 5.9.T7, then perform the Repair Procedure.
PARTS REQUIRED
| Qty. | Part Number | Description |
| 1 | 04669020 | Label, Authorized Software Update |
| 1 | 04275086 | Label, Authorized Modification |
EQUIPMENT REQUIRED
| Tool Number | Tool Name |
| CH6000 | Scan Tool (DRB III(R)) |
| CH7035 | General Purpose Interface Bus Cable (GPIB) |
| CH7000/7001 | J1962 Cable |
| – | MDS2 (Mopar Diagnostic System) |
REPAIR PROCEDURE
- Reprogram the ECM using the MDS2 (Mopar Diagnostic System) and the DRB III(R) (Scan Tool).
NOTE: DUE TO THE ECM REPROGRAMMING PROCEDURE, A DTC MAY BE SET IN OTHER MODULES (PCM, TCM, TCCM, 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 BETWEEN MODULES. CHECK ALL MODULES, RECORD THE FAULTS, AND ERASE THESE FAULTS PRIOR TO RETURNING THE VEHICLE TO THE CUSTOMER. ERASE ANY FAULTS IN THE PCM LAST AFTER ALL OTHER MODULES HAVE HAD THEIR FAULTS ERASE.NOTE: THE FOLLOWING STEPS ARE REQUIRED BY LAW.
- Type the necessary information on the “Authorized Software Update Label” P/N 04669020 Attach the label to the Cummins ENGINE CONTROL MODULE and cover the label with the clear plastic overlay. Do not attach the label to the JTEC PCM.