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NUMBER: 21-008-16
GROUP: Transmission and Transfer Case
DATE: February 18, 2016
THIS BULLETIN SUPERSEDES SERVICE BULLETIN 21-070-15 DATED DECEMBER 24, 2015, WHICH SHOULD BE REMOVED FROM YOUR FILES. ALL REVISIONS ARE HIGHLIGHTED WITH **ASTERISKS** AND INCLUDE ADDITIONAL MODEL YEAR AND BUILD DATE.
HELP USING THE wiTECH DIAGNOSTIC APPLICATION FOR FLASHING AN ECU IS AVAILABLE BY SELECTING “HELP” THEN “HELP CONTENTS” AT THE TOP OF THE wiTECH DIAGNOSTIC APPLICATION WINDOW.
THE wiTECH SOFTWARE IS REQUIRED TO BE AT THE LATEST RELEASE BEFORE PERFORMING THIS PROCEDURE.
SUBJECT:
Flash: Power Transfer Unit (PTU) Motor Position Enhancements
OVERVIEW:
This bulletin involves updating the software in the Power Transfer Unit (PTU), Rear Driveline Module (RDM) and Drivetrain Control Module (DTCM).
MODELS:
NOTE: This bulletin applies to vehicles within the following markets/countries: NAFTA and EMEA.
NOTE: This bulletin applies to KL vehicles built on or before **January 18, 2016 (MDH 0118XX)** equipped with Jeep
Active Drive I (Sales Code DK2) or with Jeep Active Drive II (Sales Code DK4).
NOTE: This bulletin applies to UF vehicles built on or before **January 18, 2016 (MDH 0118XX)** equipped with AWD Ride and Handling Suspension (Sales Code SDA) or AWD Sport Suspension (Sales Code SDD).
SYMPTOM/CONDITION:
Some customers may experience one of the following conditions:
- Difficulty shifting out of 4 Wheel Low (4WL) – KL Vehicles Equipped With DK2 or DK4.
- All Wheel Drive (AWD) not operating correctly – UF vehicles equipped with SDA or SDD.
On further inspection the technician may find one or more of the following Diagnostic Trouble Codes (DTCs):
- C1494-92-PTU Fork Position – Performance or Incorrect Operation.
- C1499-92-RDM Motor Position – Performance or Incorrect Operation.
- C1496-92-PTU Motor Position – Performance or Incorrect Operation.
DIAGNOSIS:
Using a Scan Tool (wiTECH) with the appropriate Diagnostic Procedures available in TechCONNECT, verify all of the AWD systems are functioning as designed. If DTCs or symptom conditions, other than the ones listed above are present, record the issues on the repair order and repair as necessary before proceeding further with this bulletin.
If the customer describes the symptom/condition listed above or if the technician finds the DTC, perform the Repair Procedure.
PARTS REQUIRED:
| Qty. | Description | Part No. |
|---|---|---|
| 1 (AR) | PTU, One Speed (Manual Transmission) | 68282445AB |
| 1 (AR) | PTU, One Speed (Automatic Transmission) | 68282446AB |
REPAIR PROCEDURE:
Service AWD light is flashing or on.
- Is there a DTC C1494-92 code present?
- Yes >>> Proceed to Step #2.
- No >>> Proceed to Step #4.
- Is the DTC C1494-92 code active?
- Yes >>> Replace the PTU. Refer to detailed service and repair procedures in DealerCONNECT/TechCONNECT Service Info Section 21 – Transmission and Transfer Case> Power Transfer Unit> Removal and Installation.
- No >>> Proceed to Step #3.
- Is the DTC C1494-92 code stored or intermittent?
- Yes >>> Proceed to Step #5.
- No >>> Proceed to Step #4.
- Is the vehicle a KL and equipped with sales code DK4?
- Yes >>> Proceed to Step #6.
- No >>> Proceed to Step #15.
NOTE: Install a battery charger 
to ensure battery voltage does not drop below 13.2 volts. Do not allow the charging voltage to climb above 13.5 volts during the flash process.
NOTE: If this flash process is interrupted/aborted, the flash should be restarted.
- Perform the PTU flash, using the procedure below:
- Turn the ignition off.
- Pull fuse F76 (RDM 4WD, 20 amp) in the PDC (Power Distribution Center) ( 1).
- Turn the ignition key to the RUN position and perform the PTU flash.
- When the flash is complete, turn the ignition key OFF and reinstall fuse F76.
NOTE: Verify that the RDM and DTCM are up to date. If not then update as needed.
- Perform the flash for the DTCM. Detailed instructions for flashing control modules using the wiTECH Diagnostic Application are available by selecting the “HELP” tab on the upper portion of the wiTECH window, then “HELP CONTENTS.” This will open the Welcome to wiTECH Help screen where help topics can be selected.
- Perform the RDM flash, using the procedure below:
- Turn the ignition off.
- Pull fuse F10 (PTU 4WD, 20 amp) in the PDC (Power Distribution Center) ( 1).
- Turn the ignition key to the RUN position and perform the RDM flash.
- When the flash has completed, turn the ignition key OFF and reinstall fuse F10.
Fig. 1 Module Fuse Locations
1 – F76 RMD 4WD
2 – F10 PTU 4WD
- Is the vehicle stuck in 4 Wheel Low/Lock?
- Yes >>> Proceed to Step #9.
- No >>> Proceed to Step #13.
- Raise the vehicle on the hoist.
- Aggressively rotate/rock one of the rear wheels back and forth, in order to free up the axle lock shift sleeve and relieve the torque lock in the system.
- Perform a key cycle, change the ignition position from lock to Run, it is not necessary to start the engine. You should hear the motor in the rear axle actuator move while the relearn process is occurring immediately after key-on.
- It may be necessary to repeat steps 5 and 6 multiple times in order for the relearn procedure to be successful.
- Clear any DTCs that may have been set in any module due to reprogramming. The wiTECH application will automatically present all DTCs after the flash and allow them to be cleared.
NOTE: If after multiple attempts the vehicle will not come out of 4 Wheel Low/Lock, check for active DTC and follow normal diagnostic.
- Did all of the DTCs clear?
- Yes >>> This bulletin has been completed. Return the vehicle to the customer.
- No >>> This bulletin has been completed. Perform normal DTC diagnostics in TechConnect for any active DTC.
- Perform the flash for the DTCM and PTU. Detailed instructions for flashing control modules using the wiTECH Diagnostic Application are available by selecting the “HELP” tab on the upper portion of the wiTECH window, then “HELP CONTENTS.” This will open the Welcome to wiTECH Help screen where help topics can be selected.
- Clear any DTCs that may have been set in any module due to reprogramming. The wiTECH application will automatically present all DTCs after the flash and allow the DTCs to be cleared.
POLICY:
Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
| Labor Operation No: | Description | Skill Category | Amount |
|---|---|---|---|
| 08-81-04-90 | Module, PTU – Replace (KL 2.4L Only) (1 – Semi- Skilled) | 2- Automatic Transmission | 3.9 Hrs. |
| 08-81-04-91 | Module, PTU – Replace (KL 3.2L Only) (1 – Semi- Skilled) | 2- Automatic Transmission | 2.8 Hrs. |
| 08-81-04-92 | Module, PTU – Replace (UF 3.6L Only) (1 – Semi- Skilled) | 2- Automatic Transmission | 2.8 Hrs. |
| 08-81-04-61 | Skid Plate Equipped (1 – Semi- Skilled) | 2- Automatic Transmission | 0.4 Hrs. |
| 18-19-17-95 | Modules, PTU, and DTCM Reprogram (0 – Introduction) | 2- Automatic Transmission | 0.2 Hrs. |
| 18-19-17-96 | Modules, PTU, RDM and DTCM Reprogram – DK4 Only (0 – Introduction) | 2- Automatic Transmission | 0.3 Hrs. |
| 18-19-17-97 | Modules, PTU, RDM and DTCM – Reprogram; Includes Unlock 4 Wheel Low Procedure – DK4 Only (0 – Introduction) | 2- Automatic Transmission | 0.4 Hrs. |
NOTE: The expected completion time for the flash download portion of this procedure is approximately 5 minutes. Actual flash download times may be affected by vehicle connection and network capabilities.
FAILURE CODE:
| ZZ | Service Action |
FAILURE CODE:
The dealer must choose which failure code to use. If the customer came in with an issue and the dealer found updated software to correct that issue, use failure code CC, for all other use failure code RF.
- If the customer’s concern matches the SYMPTOM/CONDITION identified in the Service Bulletin, failure code CC is to be used.
- If an available flash is completed while addressing a different customer concern, failure code RF is to be used.
| CC | Customer Concern |
| RF | Routine Flash |
NUMBER: 21-008-16
GROUP: Transmission and Transfer Case
DATE: February 18, 2016
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NUMBER: 21-070-15
GROUP: Transmission and Transfer Case
DATE: December 24, 2015
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NUMBER: 21-015-15
GROUP: Transmission and Transfer Case
DATE: March 04, 2015
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Reprogramming
Chrysler J2534 Application Overview
Flash Availability - J2534/Pass Thru Device
Vehicle to Diagnostic Tool Reference Chart
Chrysler Recommended J2534 Devices
For Chrysler recommended J2534 device, see below table.
| J2534 Device | Firmware Version |
| CTC Vehicle Box * | 1.9 |
| UCAN 2 | 1.0 |
| Blue Streak -2534 Global Programmer | 2.10 |
| Actia I+ME Passthru | 2.07 |
* Chrysler recommends the CTC Vehicle Box Device for Chrysler SCI ECU reprogramming. SCI reprogramming is used on most PCMs and TCMs prior to the introduction of CAN bus vehicles which began in 2004 (Durango).
Compatible J2534 Devices
|
CarDAQ-Plus 3 All Makes J2534 Reprogramming Tool |
|
CarDAQ-Plus 2 Diagnostic Code Reader and J2534 Programming Tool |
|
CarDAQ-Plus |
|
CarDAQ-M |
|
VSI J2534 ECU Reprogrammer |
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Click on the link below to:
Download J2534 Application
(Install the wiTECH 2.0 J2534 Application on your computer)
Download the Setup Utility
(Configure your microPod/MDP device)
Launch wiTECH 2.0
(Once subscription and users are assigned to a tool please follow this link to access wiTECH)
https://www.mopartsp.com/support
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- 🌐【SAE J2534-1 & J2534-2 Standards】Autel MaxiFlash Elite J2534 is a fully compliant SAE J2534-1 & SAE J2534-2 (March 2006) device, which performs standard PassThru J2534 functionality: Compatible with for Toyota Techstream, Volvo VIDA, Honda HDS, Jaguar-Land Rover IDS and BM.W 3G for OEM diagnostics. Autel MaxiFlash J2534 is also specially designed to provide users with P-C communication and ECU reprogramming capabilities on any modern vehicle diagnostic bus, reliability and flexibility.
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- ALL OF THE J2534 PROTOCOLS - This single unit has all of the protocols you need for your OEM J2534 reprogramming and diagnostics including the latest in DoIP and CanFD
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- TOOLBOX WITH OEM APPLICATION DESCRIPTIONS - educational video tutorials and real-time news – Giving you the confidence and up-to-date knowledge to get the job done
- J2534 v05.00 API - The newest version of J2534 to give you the latest in pass-thru technology
- FUTURE PROOF WITH 4 CAN CHANNELS - Going beyond the 3 required by select Chrysler/FCA models, CarDAQ-Plus 3 also provides a 4th to meet the needs of future OEM applications
- CUSTOM-DESIGNED FOR USE WITH FORSCAN: Works with all FORScan compatible vehicles and is recommended by the FORScan Team
- DEALERSHIP-LEVEL DIAGNOSTICS: OBDLink EX supports all Ford protocols, modules, and advanced features of FORScan
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- ROCK-SOLID CONNECTION avoids data corruption and dropped packets
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- [PRE-CONFIGURED] - The pre-configured wireless and wired connections make it quick and easy to connect to a vehicle from your PC (requires PC compliant with OE specifications and software)
- [RIGHT TO REPAIR] - Supports 'Right to Repair' (R2R) initiatives
- [COMPREHENSIVE KIT] - Kit includes: VCI, WiFi adapters (wireless PC to VCI), J1962 Cable (connect to vehicle), USB cable (connect to PC for firmware updates and setup), and Quick Start Guide
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