iv
XJ Series 1998
DATE OF ISSUE: SEPTEMBER 1997
Appendix
CAN Messages by Node
Node: Transmission Control Module
Transmitted by TCM
Message Usage
CAN torque reduction request For shift energy management
CAN transmission overload Protects transmission against excessive torque
CAN transmission input speed Transmission input shaft speed
CAN transmission output speed Transmission output shaft speed
CAN torque converter slip Percentage of torque converter slip
CAN kickdown Kickdown status
CAN gear position actual Actual transmission gear state
CAN torque converter status Indicates torque converter lockup
CAN gear position selected Position of transmission rotary switch
CAN gear selection fault Indicates validity of CAN gear position selected
CAN transmission shift map Dynamic shift program currently selected
CAN transmission oil temperature Transmission fluid temperature
CAN transmission malfunction Transmission malfunction warning
CAN TCM PECUS flag PECUS programmed status of TCM
CAN gear position target Target gear position for next shift
CAN torque transfer in progress Indicates torque transfer in progress during gearshift
CAN TCM fault code MIL status Indicates whether the TCM DTCs should switch MIL on
CAN OBDII TCM clear acknowledge Acknowledgment that OBDII DTCs have been cleared
CAN transmission fault codes TCM DTCs, including OBDII P and C codes
CAN NWM token – TCM Message for monitoring network status
CAN diagnostic data out – TCM To external diagnostics device only
Received by TCM
Message Usage Source
CAN traction status Indicates if the traction control algorithm is functioning ABS
CAN shift energy management estimated engine torque Derived from map of engine characteristics ECM
CAN throttle position Throttle valve position ECM
CAN pedal position Accelerator pedal position, throttle demand ECM
CAN torque reduction acknowledge Confirms torque reduction for shift energy management ECM
CAN engine speed Engine speed ECM
CAN brake pedal pressed Brake switch status ECM
CAN cruise status Cruise control system status ECM
CAN OBDII clear fault codes Request for ABS and TCM to clear their OBDII DTCs ECM
CAN engine coolant temperature Engine coolant temperature in Celsius ECM
CAN left front wheel speed Left front wheel speed ABS
CAN right front wheel speed Right front wheel speed ABS
CAN left rear wheel speed Left rear wheel speed ABS
CAN right rear wheel speed Right rear wheel speed ABS
CAN NWM token– ECM Message for monitoring network status ECM
CAN NWM token – INST Message for monitoring network status INST
CAN NWM token – ABS Message for monitoring network status ABS
CAN diagnostic data in – TCM From external diagnostics device only DIAG
