Can Tps Test; Transmission Neutral Test; Stuck In Low Test; Can Bus Off Test - SSANGYONG 2004 Rexton 2.7XDi Workshop Manual

CAN TPS Test

• When TCCU receives CAN message including TPS value of over 100 % continuously for 1 second, TCCU determines
it as signal error and "4WD CHECK" warning lamp comes on.
When the system is in TOD mode, the TOD control unit considers that the throttle is in idle.
• When the TPS value is restored continuously for 1 second, the TCCU functions normally and "4WD CHECK" warning
lamp comes on but the trouble code still remains in the memory.
• TCCU receives CAN TPS messages periodically. If TCCU cannot receive the messages for 4 periods, TCCU determines
it as signal loss. If it happens continuously for 1 second, TCCU considers it as the invalid signal and "4WD CHECK"
warning lamp comes on.
• When the CAN message including ABS value is restored continuously for 1 second, TCCU functions normally and
"4WD CHECK" warning lamp comes on but the trouble code still remains in the memory.

Transmission Neutral Test

• If TCCU cannot receive the messages for 4 periods, TCCU determines it as signal loss. If it happens continuously for
1 second, TCCU considers it as the invalid signal and "4WD CHECK" warning lamp comes on. And TCCU determines
that the transmission is not in neutral position.
• When CAN message including indication of transmission in neutral is restored continuously for 1 second, TCCU
functions normally and "4WD CHECK" warning lamp comes on but the trouble code still remains in the memory.

Stuck in Low Test

• Stuck in low DTC is set when the shift conditions are satisfied, no encoder trouble exists and the TCCU is not
formed outside of shift range. Stuck in low trouble completing time is 1 second longer than the maximum shift. If the
trouble is detected, "4WD CHECK" warning lamp comes on and shifting is not possible.
• If stuck in low fault is not valid, it is erased at the next ignition cycle and the "4WD CHECK" lamp lights out but fault
code remains in the memory.

CAN Bus Off Test

• CAN bus off trouble is set when the transferring trouble exceeds 255 times and CAN bus in TCCU goes to off
condition. When the trouble counter exceeds 255 times, the signal is recognized as invalid and the "4WD CHECK"
warning lamp comes on.
• If CAN bus in TCCU goes to reset condition while in Bus off condition, the transferring and receiving signals are
interrupted and the synchronization for bus disappears. Once it is reset, TCCU tries to resynchronize with CAN bus.
When the resynchronization stops, the communication is resumed. At this time, the trouble is erased and "4WD
CHECK" warning lamp comes on but the trouble code still remains in the memory.
TOD
REXTON SM - 2004.4
3E-25
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN