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FAIL-SAFE FUNCTION [FS5A-EL]

id050221100600
• In the fail-safe function, minimum vehicle drivability is obtained by changing the signals that are determined to be malfunctions by the malfunction detection function to the preset values, and limiting TCM control.

DTC No. | On-board diagnostic function | Detection condition | Fail-safe | TCC
--- | --- | --- | --- | ---
P0706 | Transaxle range (TR) switch circuit range/performance | • No TR signal (P, R, N or D range/position) input to TCM terminal 1S when the engine speed is 530 rpm or more, vehicle speed is 20 km/h {12 mph} or more and voltage at TCM terminal 2H is 0.5 V or more. | • Inhibits gear shifting and maximizes line pressure | Disabled
P0707 | Transaxle range (TR) switch circuit low input | • Input voltage from the TR switch to TCM terminal 2H is 0.5 V or less when the engine speed is 530 rpm or more and vehicle speed is 20 km/h {12 mph} or more. | • Inhibits gear shifting and maximizes line pressure | Disabled
P0708 | Transaxle range (TR) switch circuit high input | • Input voltage from the TR switch to TCM terminal 2H is 4.79 V or more when the engine speed is 530 rpm or more and vehicle speed is 20 km/h {12 mph} or more. | • Inhibits gear shifting and maximizes line pressure | Disabled
P0711 | Transaxle fluid temperature (TFT) sensor circuit range/performance (Stuck) | • Input voltage from the TFT sensor to TCM terminal 2M and 2O is maintained at 0.03 V or less when 180 s have passed after the engine is started and the vehicle is driven for 90 s or more at vehicle speed between 25-59 km/h {15-36 mph}, and then 60 km/h {37 mph} or more for 60 s or more. | N/A | Disabled
P0712 | Transaxle fluid temperature (TFT) sensor circuit malfunction (short to ground) | • Input voltage from the TFT sensor to TCM terminal 2M and 2O is maintained at 0.06 V or less when the vehicle speed is 20 km/h {12 mph} or more. | • Switch the automatic shift control to the high oil temperature mode to expand the lockup range and maximizes line pressure. | Enabled
P0713 | Transaxle fluid temperature (TFT) sensor circuit malfunction (open circuit) | • Input voltage from the TFT sensor to TCM terminal 2M and 2O is maintained at 4.67 V or more when vehicle speed is 20 km/h {12 mph} or more. | • Switch the automatic shift control to the high oil temperature mode to expand the lockup range and maximizes line pressure. | Enabled
P0715 | Input/turbine speed sensor circuit malfunction | • No input/turbine speed sensor signal to TCM terminals 2I and 2K when the vehicle speed is 41 km/h {25 mph} or more and selector lever position is at D or M range. | • Inhibits 4GR and 5GR | Disabled
P0720 | Vehicle speed sensor (VSS) circuit malfunction | • No VSS signal is input to TCM terminal 2P when and engine coolant temperature is 60 °C {140 °F} or more, input/turbine speed sensor signal is 1,500 rpm or more and selector lever position is at D or M range. | • Vehicle speed signal calculated from intermediate sensor and inhibits 5GR | Enabled
P0731 | Gear 1 incorrect (incorrect gear ratio detected) | • Revolution ratio of the forward clutch drum to secondary gear revolution is 2.157 or less while in 1GR. | • Inhibits 1GR | Enabled
P0732 | Gear 2 incorrect (incorrect gear ratio detected) | • Revolution ratio of the forward clutch drum to secondary gear revolution is 1.249 or less or 2.157 or more while in 2GR. | • Inhibits 2GR and maximizes line pressure | Enabled
P0733 | Gear 3 incorrect (incorrect gear ratio detected) | • Revolution ratio of the forward clutch drum to secondary gear revolution is 2.157 or more while in 3GR. • Revolution ratio of the forward clutch drum to secondary gear revolution is within 1.345-1.644 while in 3GR (TCC no operating). • Revolution ratio of the forward clutch drum to secondary gear revolution is 0.863 or less while in 3GR (TCC no operating). | N/A | Enabled
P0734 | Gear 4 incorrect (incorrect gear ratio detected) | • Revolution ratio of the forward clutch drum to secondary gear revolution is 0.6 or less or 1.249 or more while in 4GR. • Revolution ratio of the forward clutch drum to secondary gear revolution is within 0.91-1.09 while in 4GR (TCC no operating). | • Inhibits 4GR and 5GR, and maximizes line pressure | Enabled
P0735 | Gear 5incorrect (incorrect gear ratio detected) | • Speed ratio of the secondary gear and the differential gear case is 1.11 or less when driving in 3GR or 4GR. | • Inhibits 1GR, 2GR, 4GR and 5GR, and maximizes line pressure | Enabled
• Speed ratio of the secondary gear and differential gear case is 1.11 or more when driving in 5GR. | • Inhibits 5GR, and maximizes line pressure | Enabled
P0741 | Torque converter clutch (TCC) (stuck off) | • Difference between the engine speed and turbine speed is more than 100 rpm while TCC is operating. | • Inhibits TCC and maximizes line pressure | Disabled
P0742 | Torque converter clutch (TCC) (stuck on) | • Difference between the engine speed and turbine speed is 50 rpm or less while TCC is not operating. | • Inhibits TCC and maximizes line pressure | Disabled
P0744 | Slip control malfunction | • Revolution ratio of the forward clutch drum to secondary gear revolution is 1.334 or less or 1.645 or more while in 2GR. • Revolution ratio of the forward clutch drum to secondary gear revolution is 0.9 or less or 1.09 or more while in 3GR. • Revolution ratio of the forward clutch drum to secondary gear revolution is 0.636 or less or 0.817 or more while in 4GR. | • Inhibits slip control | Enabled
P0745 | Pressure control solenoid A malfunction | • Voltage is stuck at 0 V or B+ at pressure control solenoid control terminals 1E and 1G of the TCM when the solenoid valve operates according to TCM calculation. | • Maximizes line pressure | Enabled
P0751 | Shift solenoid A stuck off | • Revolution ratio of the forward clutch drum to secondary gear revolution is within 0.91-1.09 in 4GR and DTCs not output | • Inhibits 4GR, 5GR and TCC, and maximizes line pressure | Disabled
P0752 | Shift solenoid A stuck on | • Input/turbine speed sensor signal is 187.5 rpm or more in D range | • Inhibits 1GR, 2GR, and 3GR and maximizes line pressure | Enabled
P0753 | Shift solenoid A malfunction (electrical) | • Voltage is stuck at 0 V or B+ at shift solenoid A control terminal 1A of the TCM when the solenoid valve operates according to TCM calculation. | • Inhibits 4GR, 5GR and TCC, and maximizes line pressure | Disabled
P0756 | Shift solenoid B stuck off | • Revolution ratio of the forward clutch drum to secondary gear revolution is 2.157 or less in 1GR and DTCs not output. | • Inhibits 1GR, 4GR and 5GR, and maximizes line pressure | Enabled
P0757 | Shift solenoid B stuck on | • Revolution ratio of the forward clutch drum to secondary gear revolution is 1.249 or less or 2.157 or more in D range 2GR. • Revolution ratio of the forward clutch drum to secondary gear revolution is 0.6 or less or 1.249 or more in D range 4GR. | • Inhibits 2GR, 4GR and 5GR and maximized line pressure | Enabled
P0758 | Shift solenoid B malfunction (electrical) | • Voltage is stuck at 0 V or B+ at shift solenoid B control terminal 1B of the TCM when the solenoid valve operates according to TCM calculation. | • Inhibits 1GR, 4GR and 5GR and maximizes line pressure | Enabled
P0761 | Shift solenoid C stuck off | • Revolution ratio of the forward clutch drum to secondary gear revolution is 2.157 or less in D range 1GR. • Revolution ratio of the forward clutch drum to secondary gear revolution is 1.249 or less or 2.157 or more in D range 2GR. | • Inhibits 1GR and 2GR and maximizes line pressure | Enabled
P0762 | Shift solenoid C stuck on | • Revolution ratio of the forward clutch drum to secondary gear revolution is within 1.345-1.644 in D range 3GR. | • Inhibits 3GR, 4GR and 5GR, and maximizes line pressure | Enabled
P0763 | Shift solenoid C malfunction (electrical) | • Voltage is stuck at 0 V or B+ at shift solenoid C control terminal 1C of the TCM when the solenoid valve operates according to TCM calculation. | • Inhibits 1GR and 2GR and maximizes line pressure | Enabled
P0766 | Shift solenoid D stuck off | • Revolution ratio of the forward clutch drum to secondary gear revolution is 0.6 or less or 1.249 or more in D range 4GR. | • Inhibits 4GR and 5GR, and maximizes line pressure | Enabled
P0767 | Shift solenoid D stuck on | • Revolution ratio of the forward clutch drum to secondary gear revolution is 0.863 or less in D range 3GR. | • Inhibits 2GR, 4GR, 5GR, and TCC and maximizes line pressure | Disabled
P0768 | Shift solenoid D malfunction (electrical) | • Voltage is stuck at 0 V or B+ at shift solenoid D valve control terminal 1F of the TCM when the solenoid valve operates according to TCM calculation. | • Inhibits 4GR and 5GR, and maximizes line pressure | Disabled
P0771 | Shift solenoid E stuck off | • Difference between engine speed and turbine speed is more than 100 rpm while driving in 4GR is at D range during TCC operation. | • Inhibits TCC and maximized line pressure | Disabled
P0772 | Shift solenoid E stuck on | • Difference between the engine speed and turbine speed is 50 rpm or less while driving in 4GR at D range while TCC is not operating. | • Inhibits 1GR and maximizes line pressure | Enabled
P0773 | Shift solenoid E malfunction (electrical) | • Voltage is stuck at 0 V or B+ at shift solenoid E control terminal 1H of the TCM when the solenoid valve operates according to TCM calculation. | • Inhibits TCC and maximized line pressure | Disabled
P0777 | Pressure control solenoid B stuck on | • Speed ratio of the secondary gear and differential gear case is 1.11 or more when driving in 5th gear. | • Inhibits 5GR and maximizes line pressure | Enabled
P0778 | Pressure control solenoid B malfunction (electrical) | • Voltage is stuck at 0 V or B+ at pressure control solenoid B control terminal 1D of the TCM when the solenoid valve operates according to TCM calculation. | N/A | Enabled
P0791 | Intermediate sensor circuit malfunction | • No intermediate sensor signal is input to TCM terminal 2L when and engine coolant temperature is 60 °C {140 °F} or more, vehicle speed is 40 km/h {25 mph} or more and selector lever position is at D or M range. | • Vehicle speed signal calculated from VSS | Enabled
P0841 | Oil pressure switch circuit malfunction | • No oil pressure switch signal input when revolution ratio of forward clutch drum revolution to differential gear case revolution is within 0.91-3.07 while in 1, 2 or 3GR. • Oil pressure switch signal input when revolution ratio of forward clutch drum revolution to differential gear case revolution is within 0.64-0.81 while in 4GR. | N/A | Enabled
P0882 | Battery back-up power supply circuit malfunction | • When the signal of the battery back-up power supply circuit is less than 2.5 V. | N/A | Enabled
P0894 | Forward clutch torque transmission | • Turbine speed does not fall to less than 187.5 rpm 3 s or more after starting the engine with the vehicle stopped (brake applied) and the selector lever shifted to D range from N position. | • Driving restricted to 4GR | Enabled
P1783 | ATF high oil temperature malfunction | • ATF oil temperature is 149.5 °C {301 °F} or more | N/A | Enabled
P2707 | Shift solenoid F stuck off | • Speed ratio of the secondary gear and the differential gear case is 1.11 or less when driving in 3GR or 4GR. | • Driving restricted to 3GR and maximizes line pressure | Enabled
P2708 | Shift solenoid F stuck on | • Speed ratio of the secondary gear and differential gear case is 1.11 or more when driving in 5GR. | • Inhibits 5GR and maximizes line pressure | Enabled
P2709 | Shift solenoid F malfunction (electrical) | • Voltage is stuck at 0 V or B+ at shift solenoid F control terminal 1J of the TCM when the solenoid valve operates according to TCM calculation. | • Driving restricted to 3GR and maximizes line pressure | Enabled
U0073 | Control module communication bus off | • CAN controller damaged. | • Throttle valve opening angle is fixed (10%) at the time in order to determine shift • Maximizes line pressure | Enabled
U0100 | Lost communication with PCM | • TCM cannot receive any signals from PCM | Disabled