In case of gasoline vehicle TPS is installed in it but in case of Diesel vehicle the signal corresponding to TPS is generated from APS. The signal from APS jurges amount of driver’s acceletion and is inputted from engine ECM to 4WD ECM through CAN. This signal becomes a criteria signal to determind amount of torque distribution in front, rear wheel with steering angle sensor, wheel speed sensor, break signal.
This DTC code is related to TPS(APS) and is set If there is no input signal to TCCU or the signal is out of specified range.
Item
Detecting Condition
Possible Cause
DTC Strategy
? Loss of signal out of range
? ECM,TCCU connector looseness and poor terminal to wire connection.
? CAN HIGH/LOW circuit open/short.
? APS(TPS) faulty.
? Faulty ECM .
? Faulty TCCU .
Enable Conditions
? Message present 1.0 sec self clearing
Threshold Value
? Input CAN Message : FHH
? Can Signal Lost : No Signal
Diagnostic Time
? 1 sec
MIL on condition
? 0.5 Sec.
Fail Safe