Fail Safe Table

This function is provided by the safe mechanism that assures safe driveability even when the solenoid valve, sensor or its circuit fails. The following table shows the fail safe function for each fail condition of sensor, solenoid, TCM or its circuit.

FAIL SAFE CHART

DTC No.		Trouble Area	Fail Safe Operation
Type 1	Type 2	Trouble Area	Fail Safe Operation
P0705	34	Transmission Range Sensor Circuit Malfunction (PRNDL Input)	TCM control is performed in priority order below. D> 3> L> R> N> P Vehicle starting at 2nd gear is inhibited.
P0707	34	Transmission Range Sensor Circuit Low	Range is assumed to be "D" range. Vehicle starting at 2nd gear is inhibited.
P0712	38	Transmission Fluid Temperature Sensor "A" Circuit Low	A/T fluid temperature is assumed to be 80°C (176°F). Upshifting to 5th gear is inhibited. Learning control is inhibited.
P0713	36	Transmission Fluid Temperature Sensor "A" Circuit High
P0717	14	Input/Turbine Speed Sensor Circuit No Signal	Upshifting to 5th gear is inhibited. Torque reducing request to ECM (torque reduction control) is inhibited. Learning control is inhibited.
P0722	31	Output Speed Sensor Circuit No Signal	Vehicle speed which is calculated by input shaft speed sensor signal is used for gear shifting control instead of vehicle speed calculated by output shaft speed sensor (VSS) signal. Upshifting to 5th gear is inhibited. Torque reducing request to ECM (torque reduction control) is inhibited. Learning control is inhibited.
P0752	61	Shift Solenoid "A" Stuck On	Upshifting to 4th and 5th gear is inhibited.
P0756	65	Shift Solenoid "B" Performance or Stuck Off	Shift changing to 1st and 2nd gear in L range is inhibited.
P0757	63	Shift Solenoid "B" Stuck On	Upshifting to 4th and 5th gear is inhibited.
P0772	66	Shift Solenoid "E" Stuck On	Shift changing to 1st and 2nd gear in L range is inhibited.
P0781	68	1-2 Shift	Upshifting to 4th and 5th gear is inhibited.
P0797	79	Pressure Control Solenoid "C" Stuck On	Upshifting to 4th and 5th gear is inhibited. Shift changing to 1st and 2nd gear in L range is inhibited.
P0962	41	Pressure Control Solenoid "A" Control Circuit Low	Power supply for all solenoid valves is cut. Gear position is fixed according to select lever position as shown in the following. R: Reverse D: 4th 3: 3rd L: 3rd Lock-up function is inhibited to operate. Line pressure control at gear shifting is inhibited. Learning control is inhibited.
P0963	42	Pressure Control Solenoid "A" Control Circuit High
P0966	43	Pressure Control Solenoid "B" Control Circuit Low
P0967	44	Pressure Control Solenoid "B" Control Circuit High
P0970	45	Pressure Control Solenoid "C" Control Circuit Low
P0971	46	Pressure Control Solenoid "C" Control Circuit High
P0973	22	Shift Solenoid "A" Control Circuit Low
P0974	21	Shift Solenoid "A" Control Circuit High
P0976	24	Shift Solenoid "B" Control Circuit Low
P0977	23	Shift Solenoid "B" Control Circuit High
P0985	49	Shift Solenoid "E" Control Circuit Low
P0986	48	Shift Solenoid "E" Control Circuit High
P1702	83	Internal Control Module Memory Check Sum Error	Power supply for all solenoid valves is cut. Gear position is fixed according to select lever position as shown in the following. R: Reverse D: 4th 3: 3rd L: 3rd Lock-up function is inhibited to operate. Line pressure control at gear shifting is inhibited.
P1703	86	CAN Invalid Data - TCM	In case of throttle position signal malfunction: Throttle opening used for line pressure control is assumed to be 100%. Throttle opening used for gear shifting control is assumed to be 0%. Upshifting to 5th gear is inhibited. Lock-up function is inhibited to operate. Learning control is inhibited. In case of engine coolant temperature signal malfunction: Engine coolant temperature is assumed to be 80°C (176°F). In case of engine revolution signal malfunction: Engine revolution is assumed to be maximum revolution. Upshifting to 5th gear is inhibited. Learning control is inhibited. In case of engine torque signal malfunction: Upshifting to 5th gear is inhibited. Engine torque is assumed to be maximum torque. Learning control is inhibited.
P1740	75	Cruise Control Signal Malfunction	5th gear control by cruise control signal is inhibited.
P2764	25	Torque Converter Clutch Circuit Low	Lock-up function is inhibited to operate. Learning control is inhibited.
P2763	26	Torque Converter Clutch Circuit High	Power supply for all solenoid valves is cut. Gear position is fixed according to select lever position as shown in the following. R: Reverse D: 4th 3: 3rd L: 3rd Lock-up function is inhibited to operate. Line pressure control at gear shifting is inhibited. Learning control is inhibited.
U0001	76	CAN communication problem - TCM	Throttle opening used for line pressure control is assumed to be 100%. Throttle opening used for gear shifting control is assumed to be 0%. After 15 minutes passing from malfunction detection, engine coolant temperature is assumed to be 90°C (194°F). Upshifting to O/D is inhibited. Lock-up function is inhibited to operate. Line pressure control at gear shifting is inhibited. Torque reducing request to ECM (torque reduction control) is inhibited. Learning control is inhibited. Line pressure control at gear shifting is inhibited.