Neon L4-2.0L DOHC (1996)
PROM - Programmable Read Only Memory: All Technical Service Bulletins
PCM - O2 Sensor Faults/MIL ON
NO: 18-35-95
GROUP: Vehicle Performance
DATE: Dec. 15, 1995
SUBJECT:
Rear O2 Sensor Diagnostics / OBD II Protocol
MODELS:
1996 (FJ) Avenger/Sebring/Talon 1996 (PL) Neon
NOTE:
This bulletin applies to 1996 vehicles equipped with a 2.0L engine (Avenger/Sebring/Talon built prior to November 10, 1995 MDH (11-10-xx))
(Neon built prior to November 14, 1995 MDH (11-14-xx)).
SYMPTOM/CONDITION:
1.
Intermitent rear O2 sensor fault, Diagnostic Trouble Code (DTC) # 129 with Malfunction Indicator Light (MIL) illumination.
2.
Inability of generic scan tool to read all Diagnostic Trouble Codes (DTC's).
3.
Inability to store OBD II Readiness Codes.
EQUIPMENT REQUIRED:
1
CH6000
Scan Tool (DRB III)
1
CH7035
General Purpose Interface Bus Cable (GPIB)
1
CH7010
J1962/MMC Cable
1
4669020
Label - Authorized Software Update
1
4275086
Label - Authorized Modification
NOTE:
The Mopar Diagnostic System may be required to perform part of the repair and the system must be operating with release 18 or higher and TIL CD
release 1095 or higher must be installed.
REPAIR PROCEDURE:
This repair involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software (calibration changes) for all
symptoms listed.
1.
Connect the MDS (Mopar Diagnostic System) and DRB III (Scan Tool) to the vehicle and power them up.
2.
Use the arrow keys and select # 2 MDS DIAGNOSTICS on the DRB III MAIN MENU Screen.
3.
Use the arrow keys and select DIAGNOSTIC MENU on the MDS, then press NEXT MENU.
4.
Use the arrow keys and select CONTROLLER PROGRAMMING on the MDS, then press NEXT MENU.
5.
Use the arrow keys and select PROGRAM CONTROLLER PART on the MDS, then press NEXT MENU.
6.
Follow the steps presented on the MDS and DRB III which will allow the DRB III to obtain the current part number of the PCM.
7.
The MDS will display the part number of the PCM on the vehicle and the appropriate replacement part number, then press NEXT MENU to begin
programming.
^
If the PCM on the vehicle has already been updated or programmed, a NO UPDATES AVAILABLE message will be displayed. Check the
part number of the PCM on the vehicle and compare it to the part number displayed. If the PCM has already been updated, then another
condition exists that will require further diagnosis and repair.
8.
The MDS and DRB III will prompt for any operator action needed during the remainder of the programming process.
NOTE:
The following steps are required by law.
