Grand Caravan V6-4.0L (2008)
Engine Control Module: Testing and Inspection
WIN Programming
WIN PROGRAMMING
The Wireless Ignition Node (WIN) controls the Vehicle Theft Security System (VTSS). When a Powertrain Control Module (PCM) for a gasoline
engine, or an Engine Control Module (ECM) for a diesel engine, and the Wireless Ignition Node (WIN), are need replacement, perform the following
steps in order:
NOTE: The PCM and the WIN should never be replaced at the same time. They should be replace independently of each other.
1. If applicable first replace the PCM/ECM, with the original WIN still connected to the vehicle.
2. Using the appropriate service information program the new PCM/ECM. (This will ensure the Secret Key Transfer from the original WIN into the
new PCM/ECM).
3. Now replace and program the WIN. This will retain the Secret Key from the PCM/ECM back into the new WIN.
4. With the scan tool, select Miscellaneous Functions, WCM/Wireless Control Module or WIN. Then select the desired procedure and follow the
display on the scan tool.
5. If the vehicle is equipped with Tire Pressure Monitoring System program the Placard Pressure Values into the WIN.
6. Ensure all the customer's keys have been programmed into the new module if necessary.
NOTE: If the original keys do not successfully program to the new WIN after the proper procedures are followed correctly,
programming new keys will be necessary.
PROGRAMMING THE KEY CODE TO THE WIN
The secret key is an ID code that is unique to each WIN. This code is programmed and stored in the WIN, the PCM/ECM, and each ignition key
transponder chip. When the PCM/ECM or WIN is replaced, it is necessary to program the Secret Key Code into the new module using a diagnostic scan
tool. Follow the programming steps outlined in the diagnostic scan tool for PCM REPLACED , ECM REPLACED , WCM/WIN REPLACE , or
TIPM REPLACED under MISCELLANEOUS FUNCTIONS for the WIRELESS IGNITION NODE/WIN menu item as appropriate.
NOTE: Programming the PCM/ECM or WIN is done using a diagnostic scan tool and a PIN to enter secure access mode. If three attempts are
made to enter secure access mode using an incorrect PIN, secure access mode will be locked out for one hour. To exit this lockout mode, turn
the ignition to the RUN position for one hour then enter the correct PIN. Be certain that all accessories are turned OFF. Also monitor the
battery state and connect a battery charger if necessary.
NOTE: Before replacing the ECU for a failed driver, control circuit or ground circuit, be sure to check the related component/circuit integrity
for failures not detected due to a double fault in the circuit. Most ECM driver/control circuit failures are caused by internal component failures
(i.e. relay and solenoids) and shorted circuits (i.e. pull-ups, drivers and switched circuits). These failures are difficult to detect when a double
fault has occurred and only one DTC has set.
ECM/SKIM/WCM PROGRAMMING
When a ECM and the SKIM are replaced at the same time perform the following steps in order:
1. Program the new SKIM
2. Program the new ECM
3. Replace all ignition keys and program them to the new SKIM.
ECM/SKIM/WCM PROGRAMMING
When an ECM (Bosch) and the SKIM are replaced at the same time perform the following steps in order:
1. Program the new SKIM
2. Program the new ECM (Bosch)
3. Replace all ignition keys and program them to the new SKIM.
PROGRAMMING THE SKIM
CAUTION: Read all notes and cautions for programming procedures.
1. Connect a battery charger to the vehicle.
2. Connect the Scantool.
CAUTION: If the ECM/PCM and SKREEM/WCM are replaced at the same time, the ECM/PCM MUST be programmed before the
SKREEM/WCM.
