PCM - MIL ON, DTC's P0071 or P0135 or P0141 Set
NUMBER: 18-011-01GROUP: Vehicle Performance
DATE: May 11, 2001
SUBJECT:
MIL Illumination (P0071 Battery Temperature Sensor Performance, or P0135 or P0141 Oxygen Sensor Heater Performance)
OVERVIEW:
This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software (calibration level 01Cal14b.)
MODELS:
2001 (AB) Ram Van/Wagon
2001 (AN) Dakota
2001 (BR/BE) Ram Truck
2001 (DN) Durango
2001 (SR) Viper
NOTE:
THIS BULLETIN APPLIES TO VEHICLES EQUIPPED WITH A GASOLINE ENGINE. CALIBRATION LEVEL MUST BE PRIOR TO (LESS OR LOWER THAN) 2001 CAL14B. CAREFULLY READ THE NOTES BELOW FOR OTHER CONDITIONS RELATED TO THE "OXYGEN SENSOR HEATER PERFORMANCE" CONDITION.
SYMPTOM/CONDITION:
Customer will experience MIL illumination.
DIAGNOSIS PROCEDURES:
1. Using the Diagnostic Scan Tool (DRBIII(R)) with the appropriate Diagnostic Procedures, verify all engine/transmission systems are functioning as designed. If other DTC's are present, record them on the repair order and repair as necessary before proceeding further with this bulletin.
2. It the condition seen is a MIL "on" and either Diagnostic Trouble Code (DTC) for "Oxygen Sensor Heater Performance" (P0135 OR P0141) is present, and the vehicle is equipped with a single upstream oxygen sensor system (see table below) perform the repair procedure. If the vehicle is not included in the table below, perform the repair procedure and follow normal diagnostic procedures to correct the "Oxygen Sensor Heater Performance" condition.
3. If the MIL light is "on", and the vehicle calibration level is already at 2001 CAL14B or higher, and the DTC's for "Oxygen Sensor Heater Performance" (P0135 OR P0141) are present, follow normal diagnostic procedures to correct the problem.
PARTS REQUIRED:
EQUIPMENT REQUIRED:
NOTE:
THE MDS2 AND DRBIII(R) ARE REQUIRED TO PERFORM PART OF THIS REPAIR, WHEN USING THE MDS2 AND THE DRBIII(R) THE SYSTEM MUST BE OPERATING AT CIS CD 2083 OR HIGHER (2083 ARRIVES IN DEALERSHIPS ON MAY 28, 2001).
REPAIR PROCEDURE:
1. Log onto the MDS2 (Mopar Diagnostic System).
2. Connect the MDS2 and DRBIII(R) to the vehicle and switch the ignition key to "ON".
NOTE:
AUTO CONNECTION WILL OCCUR ONCE THE DRBIII(R), MDS2, AND VEHICLE ESTABLISH COMMUNICATION. THE "CANNOT READ VIN FROM DRBIII(R)" 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.
3. Push the FLASH tab on the MDS2.
4. Select READ PART NUMBERS FROM VEHICLE and click SHOW UPDATES on the MDS2.
NOTE:
A MESSAGE MAY APPEAR (AFTER STEP 3 OR 4) 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.
5. Select the new software part number with the light pen and click UPDATE CONTROLLER SOFTWARE.
6. The MDS2 and DRBIII(R) will prompt for any operator action needed during the remainder of the reprogramming process.
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.
7. 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.
8. Type the necessary information on the "Authorized Modification Label" p/n 04275086 and attach the label near the VECI label (Fig. 2).
POLICY:
Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
FAILURE CODE: