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FAIL-SAFE FUNCTION [FN4A-EL]

BME050219090106

• In the fail-safe function, minimum vehicle drivability is obtained by changing the signals that are determined to have 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 3C 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 range. | N/A | Enabled
P0705 | Transaxle range (TR) switch circuit malfunction (short circuit) | • Multiple signals from the TR switch are continuously input to the PCM for 100 s or more. | • Inhibits gear shifting and maximizes line pressure | Disabled
P0706 | Transaxle range (TR) switch circuit malfunction (open circuit) | • No signal from the TR switch is input to the PCM for a period of 100 s or more at a vehicle speed of 20 km/h 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 3D 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 3D 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 3D 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 3G and 3J when the vehicle speed is 40 km/h {25 mph} or more and selector lever position is in D 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 2.157 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 1.249 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 revolution to differential gear case revolution is 0.863 or less or 1.249 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 1.249 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 3Y 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 4AB 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 4AC 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 4Y 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 3S 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 3P of the PCM when the solenoid valve operates according to PCM calculation. | • Inhibits TCC and maximized line pressure | Disabled
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 0.91 or less or 3.08 or more 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 0.64 or less or 0.82 or more while in 4GR. | N/A | Enabled
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 range and stopped (brake applied). | • Driving restricted to 4GR | Enabled