FAIL-SAFE FUNCTION [FN4A-EL]


id0502a1100600

• 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 PCM 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, D, S or L range/position) input to PCM terminal 1AS when the engine speed is 530 rpm or more, vehicle speed is 20 km/h {12 mph} or more and voltage at PCM terminal 1AS 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 PCM terminal 1AS 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 PCM terminal 1AS 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 PCM terminal 1AH and 1AG 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 PCM terminal 1AH and 1AG is maintained at 0.06 V or less when the vehicle speed is 20 km/h {12 mph} or more.
• Sets temperature to cold condition and maximizes line pressure
Disabled
P0713
Transaxle fluid temperature (TFT) sensor circuit malfunction (open circuit)
• Input voltage from the TFT sensor to PCM terminal 1AH and 1AG is maintained at 4.67 V or more when vehicle speed is 20 km/h {12 mph} or more.
• Sets temperature to cold condition
Disabled
P0715
Input/turbine speed sensor circuit malfunction
• No input/turbine speed sensor signal to PCM terminals 1R and 1V when the vehicle speed is 41 km/h {25 mph} or more and selector lever position is at D, S, L or M range.
• Inhibits 4GR
Disabled
P0720
Vehicle speed sensor (VSS) circuit malfunction
• No VSS signal is input to PCM terminal 1AX 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, S, L or M range.
• Vehicle speed signal calculated from input/turbine speed sensor
Enabled
P0731
Gear 1 incorrect (incorrect gear ratio detected)
• Revolution ratio of the forward clutch drum to differential gear case revolution is 2.185 or less while in 1GR.
• Inhibits 1GR and maximizes line pressure
Enabled
P0732
Gear 2 incorrect (incorrect gear ratio detected)
• Revolution ratio of the forward clutch drum to differential gear case revolution is 1.277 or less or 2.185 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 differential gear case revolution is 0.848 or less or 2.185 or more while in 3GR.
• Revolution ratio of the forward clutch drum to differential gear case revolution is within 1.404-1.704 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 differential gear case revolution is 0.57 or less or 1.277 or more while in 4GR.
• Revolution ratio of the forward clutch drum to differential gear case revolution is within 0.91-1.09 while in 4GR (TCC no operating).
• Inhibits 4GR 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
P0745
Pressure control solenoid malfunction
• Voltage is stuck at 0 V or B+ at pressure control solenoid control terminal 1P of the PCM when the solenoid valve operates according to PCM calculation.
N/A
Enabled
P0751
Shift solenoid A stuck off
• Revolution ratio of the forward clutch drum to differential gear case revolution is within 0.91-1.09 in 4GR and DTCs not output
• Inhibits 4GR 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 1D of the PCM when the solenoid valve operates according to PCM calculation.
• Inhibits 4GR and TCC and maximizes line pressure
Disabled
P0756
Shift solenoid B stuck off
• Revolution ratio of the forward clutch drum to differential gear case revolution is 2.185 or less in 1GR and DTCs not output.
• Inhibits 1GR and 4GR and maximizes line pressure
Enabled
P0757
Shift solenoid B stuck on
• Revolution ratio of the forward clutch drum to differential gear case revolution is 1.277 or less or 2.185 or more in D range 2GR.
• Revolution ratio of the forward clutch drum to differential gear case revolution is 0.57 or less or 1.277 or more in D range 4GR.
• Inhibits 2GR and 4GR 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 1H of the PCM when the solenoid valve operates according to PCM calculation.
• Inhibits 1GR and 4GR and maximizes line pressure
Enabled
P0761
Shift solenoid C stuck off
• Revolution ratio of the forward clutch drum to differential gear case revolution is 2.185 or less in D range 1GR.
• Revolution ratio of the forward clutch drum to differential gear case revolution is 1.277 or less or 2.185 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 differential gear case revolution is within 1.404-1.704 in D range 3GR.
• Inhibits 3GR and 4GR 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 1L of the PCM when the solenoid valve operates according to PCM calculation.
• Inhibits 1GR and 2GR and maximizes line pressure
Enabled
P0766
Shift solenoid D stuck off
• Revolution ratio of the forward clutch drum to differential gear case revolution is 0.57 or less or 1.277 or more in D range 4GR.
• Inhibits 4GR and maximizes line pressure
Enabled
P0767
Shift solenoid D stuck on
• Revolution ratio of the forward clutch drum to differential gear case revolution is 0.848 or less or 2.185 or more in D range 3GR.
• Inhibits 2GR, 4GR, 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 1K of the PCM when the solenoid valve operates according to PCM calculation.
• Inhibits 4GR and maximizes line pressure
Enabled
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 1O of the PCM when the solenoid valve operates according to PCM calculation.
• Inhibits TCC and maximized line pressure
Disabled
P0894
Forward clutch torque transmission
• Turbine speed does not fall to less than 187 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