FAIL-SAFE FUNCTION [FN4A-EL]


B3E050219090T06
• 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
P0500
VSS circuit malfunction (ATX)
• No VSS signal is input to PCM terminal 1AY when and engine coolant temperature is 60 °C {140 °F} or more, input/turbine speed sensor signal is above 1,500 rpm and selector lever position is at D or M range.
N/A
Enabled
P0706
Transaxle range (TR) switch circuit range/performance
• No TR signal (P, R, N or D range/position) input to PCM terminal 1X when the engine speed is 530 rpm or more, vehicle speed is 20 km/h {12 mph} or more and voltage at PCM terminal 1X 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 1X 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 1X 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 1AU and 1AN is maintained at 0.06 V or less when 180 s have passed after the engine is started and the vehicle is driven for 150 s or more at vehicle speed between 25 and 59 km/h {15 and 36 mph}, and then 60 km/h {37 mph} or more for 100 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 1AU and 1AN 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
Disabled
P0713
Transaxle fluid temperature (TFT) sensor circuit malfunction (open circuit)
• Input voltage from the TFT sensor to PCM terminal 1AU and 1AN 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 1K and 1O when the vehicle speed is 40 km/h {25 mph} or more and selector lever position is at D or M range.
• Inhibits 4GR
Disabled
P0731
Gear 1 incorrect (incorrect gear ratio detected)
• Revolution ratio of the forward clutch drum revolution to differential gear case revolution is 2.16 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 revolution to differential gear case revolution is 1.25 or less or 2.16 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 revolution to differential gear case revolution is 0.86 or less or 1.25 or more while in 3GR.
N/A
Enabled
P0734
Gear 4 incorrect (incorrect gear ratio detected)
• Revolution ratio of the forward clutch drum revolution to differential gear case revolution is 0.6 or less or 1.25 or more while in 4GR.
• Inhibits 4GR and maximizes line pressure
Disabled
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 1AF 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 revolution 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 above 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 1AZ 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 revolution to differential gear case revolution is 2.157 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 revolution to differential gear case revolution is 1.249 or less or more than 2.157 in D range 2GR.
• 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 1BH 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 revolution to differential gear case revolution is 2.157 or less in D range 1GR and 2GR.
• Inhibits 1GR and 2GR and maximizes line pressure
Enabled
P0762
Shift solenoid C stuck on
• Revolution ratio of the forward clutch drum revolution to differential gear case revolution is 0.863 or less or 1.249 or more in D range 3GR.
• Revolution ratio of the forward clutch drum revolution to differential gear case revolution is 0.6 or less or 1.249 or more in D range 4GR.
• 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 1BD 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 revolution to differential gear case revolution is 0.6 or less or 0.863 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 revolution to differential gear case revolution is 0.863 or less or 1.249 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 1AJ 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 1AR 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 in the D or M range and stopped (brake applied).
• Driving restricted to 4GR
Enabled