Theory Of Operation
Whenever a Fob-Integrated-Key (FOBIK) is inserted in the Wireless Ignition Node (WIN) base station, the WIN performs a self test and resynchronization routine. During the routine, the WIN interrogates the FOBIK, performing various validity and performance tests. The repair of this fault condition relies on the programmed status of the FOBIK.
Whenever a Fob-Integrated-Key (FOBIK) is inserted in the Wireless Ignition Node (WIN) base station, the WIN performs a self test and resynchronization routine. During the routine, the WIN interrogates the FOBIK, performing various validity and performance tests. The repair of this fault condition relies on whether the ID of the FOBIK is recognized as valid in the WIN.
The Wireless Ignition Node (WIN) is preprogrammed from the factory with 2 FOBIKS, with the capability to have a maximum of 8 FOBIKS programmed in total. Additional programmed FOBIKS are automatically learned to the next available FOBIK position in the Wireless Ignition Node (WIN) software and do not overwrite any previous positions. The repair of this fault condition relies on the current number of FOBIKS programmed into the WIN and the number of available positions in the WIN software.
Sentry Key Remote Entry Module (SKREEM) is one of the many functions that is a subset of the Wireless Ignition Node (WIN). SKREEM programming takes place during the FOBIK programming procedure. The repair of this fault condition is dependent on the programmed status of the FOBIK attempting to be programmed.
For the engine to start, the Sentry Key Immobilizer (SKIM) feature of the Wireless Ignition Node (WIN) and the Powertrain Control Module (PCM) must successfully communicate data over the data bus. Once the WIN sends the message that a valid Fob-Integrated-Key (FOBIK) is being used, the PCM and WIN perform a "handshake" routine to validate this information, and a match allows the engine to run when the ignition state transitions to START. The repair of this fault is determined by the ability of the WIN and PCM/ECM to complete a successful handshake routine over the bus.
For the engine to start, the Sentry Key Immobilizer (SKIM) feature of the Wireless Ignition Node (WIN) must successfully receive a message that a valid Fob-Integrated-Key (FOBIK) is being used, the FOBIK and WIN perform a "handshake" routine to validate this information, and a match allows the engine to run when the ignition state transitions to START.
Whenever a Fob-Integrated-Key (FOBIK) is inserted in the Wireless Ignition Node (WIN) base station, the WIN performs a self test and resynchronization routine. During the routine, the WIN interrogates the FOBIK, performing various validity and performance tests. The repair of this fault condition relies on whether the FOBIK ID is received by the WIN.
Whenever a Fob-Integrated-Key (FOBIK) is inserted in the Wireless Ignition Node (WIN) base station, the WIN performs a self test and resynchronization routine. During the routine, the WIN interrogates the FOBIK for the secret key information and start the vehicle. The repair of this fault condition relies on whether the current secret key in the FOBIK is recognized by the WIN.
The Wireless Ignition Node (WIN) must be configured for various parameters such as model year and vehicle line, after a service replacement. The WIN checks for the proper configuration by comparing the values stored to those sent out on the serial data bus. The repair of this fault does not involve any external circuitry and centers on verifying the module is configured correctly.
When a valid FOBIK is used and the ignition rotated to the RUN position, the WIN "listens" to the CAN C bus for the broadcast of the Vehicle Identification Number (VIN) by the Powertrain Control Module (PCM).
The Wireless Ignition Node (WIN) base station communicates with the Steering Column Lock module (ELV) following successful authentication with the FOBIK. The ELV then unlocks, allowing the steering wheel to rotate.
The tire pressure sensor actively monitors the air pressure and air temperature inside the tire, the sensor internal battery status, and the radial acceleration of the wheel. Each sensor has a unique ID code. The sensor transmits the data at regular intervals via an encoded signal to a receiver circuit located in the Wireless Ignition Node (WIN).
The tire pressure sensor actively monitors the air pressure and air temperature inside the tire, the sensor internal battery status, and the radial acceleration of the wheel. Each sensor has a unique ID code. The sensor transmits the data at regular intervals via an encoded signal to a receiver circuit located in the Wireless Ignition Node (WIN).
The tire pressure sensor actively monitors the air pressure and air temperature inside the tire, the sensor internal battery status, and the radial acceleration of the wheel. Each sensor has a unique ID code. The sensor transmits the data at regular intervals via an encoded signal to a receiver circuit located in the Wireless Ignition Node (WIN).
The tire pressure sensor actively monitors the air pressure and air temperature inside the tire, the sensor internal battery status, and the radial acceleration of the wheel. Each sensor has a unique ID code. The sensor transmits the data at regular intervals via an encoded signal to a receiver circuit located in the Wireless Ignition Node (WIN).
When installing a new Wireless Ignition Node (WIN), the module is programed with universal IDs for the Tire Pressure Monitoring (TPM) Sensors. The WIN must be programmed with the correct TPM Sensor IDs.
The Brake Transmission Safety Interlock (BTSI) is a safety feature that prohibits movement of the shift lever out of park unless certain conditions are met. The Wireless Ignition Node (WIN) controls the BTSI solenoid. The WIN module will engage the BTSI solenoid when the module detects the depression of the brake pedal thus allowing the transmission shift lever to move from the park position to any other position. Failure of the control circuit may inhibit the movement of the shift lever and cause this DTC to set.
Whenever a Fob Integrated Key (FOBIK) is inserted in the Wireless Ignition Node (WIN), the WIN performs a self test and resynchronization routine. During the routine, the WIN interrogates the FOBIK for the secret key information and performs a CAN Bus message handshake with the PCM to start the vehicle. The PCM must reply to the WIN that the secret key information matches to initiate the start sequence or this code will set on the 20th attempt.