FAIL-SAFE FUNCTION [SJ6A-EL]

id050208100600

• 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
--- | --- | --- | ---
P0601 | Flash ROM malfunction | • Flash ROM (in TCM) internal circuit malfunction is detected. | • Emergency mode (all solenoid off) • Inhibits self learning control • Inhibits driver adaptive shift control • Inhibits TCC control • Inhibits slip control
P0603 | EEPROM malfunction | • Different numeric values for EEPRROM and RAM (in TCM) are detected. | N/A
P0604 | RAM malfunction | • RAM (in TCM) read/write error is detected. | • Emergency mode (all solenoid off) • Inhibits self learning control • Inhibits driver adaptive shift control • Inhibits TCC control • Inhibits slip control
P0707 | Transmission range (TR) switch circuit low input (short to ground) | • A signal input from the TR switch to the TCM corresponds to two contact points or more. | • Determines range in the order of D, R, N (P). • Inhibits self learning control • Inhibits driver adaptive shift control
P0708 | Transmission range (TR) switch circuit high input (open circuit) | • Vehicle speed is 30 km/h {18.6 mph} or more, and no range signal is input from the TR switch. | • D range is determined when there is no TR switch signal input. • Inhibits self learning control • Inhibits driver adaptive shift control
P0711 | Transmission fluid temperature (TFT) sensor malfunction (stuck) | • Change in ATF temperature cannot be detected for 10 min or more when driving in D range. | • Fixes ATF temperature value at 80 °C {176 °F} • Inhibits self learning control • Inhibits slip control • Inhibits driver adaptive shift control • Inhibits 5GR and 6GR
P0712 | Transmission fluid temperature (TFT) sensor circuit malfunction (short to ground) | • TCM detects ATF temperature of 200 °C {392 °F} or more. | • Fixes ATF temperature value at 80 °C {176 °F} • Inhibits self learning control • Inhibits slip control • Inhibits driver adaptive shift control • Inhibits 5GR and 6GR
P0713 | Transmission fluid temperature (TFT) sensor circuit malfunction (short to power/open circuit) | • TCM detects ATF temperature of less than -43 °C {-45.4 °F}when engine is warmed-up and running. | • Fixes ATF temperature value at 80 °C {176 °F} • Inhibits self learning control • Inhibits slip control • Inhibits driver adaptive shift control • Inhibits 5GR and 6GR
P0717 | Turbine sensor circuit malfunction (open circuit/short circuit) | • Turbine speed signal is not input during vehicle speed signal 12 pulse period when driving in D range. | • Substitutes vehicle speed signal for turbine speed signal. • Inhibits 5GR and 6GR • Inhibits self learning control • Inhibits driver adaptive shift control • Inhibits slip control • Inhibits manual mode control
P0722 | Vehicle speed sensor (VSS) circuit malfunction (open circuit/short circuit) | • Vehicle speed signal is not input during turbine speed signal 12 pulse period when driving in D range. | • Substitutes turbine speed signal for vehicle speed signal. • Inhibits 5GR and 6GR • Inhibits self learning control • Inhibits driver adaptive shift control • Inhibits slip control • Inhibits manual mode control
P0751 | Shift solenoid A malfunction (stuck off) | • TCM detects that shift solenoid A does not change from off when engine is running | • Inhibits 4GR, 5GR and 6GR • Inhibits 1GR and 2GR (manual mode)
P0752 | Shift solenoid A malfunction (stuck on) | • TCM detects that shift solenoid A does not change from on when engine is running | N/A
P0756 | Shift solenoid B malfunction (stuck off) | • TCM detects that shift solenoid B does not change from off when engine is running | N/A
P0757 | Shift solenoid B malfunction (stuck on) | • TCM detects that shift solenoid B does not change from on when engine is running | N/A
P0761 | Shift solenoid C malfunction (stuck off) | • TCM detects that shift solenoid C does not change from off when engine is running | N/A
P0762 | Shift solenoid C malfunction (stuck on) | • TCM detects that shift solenoid C doe not change from on when engine is running | • Inhibits 4GR, 5GR and 6GR
P0766 | Shift solenoid D malfunction (stuck off) | • TCM detects that shift solenoid D does not change from off when engine is running | • Inhibits 4GR, 5GR and 6GR
Shift solenoid G malfunction (stuck on) | • TCM detects that shift solenoid G does not change from on when engine is running | • Inhibits 4GR, 5GR and 6GR
P0781 | 1-2 shift valve malfunction | • TCM detects 1–2 shift valve malfunction. | • Inhibits 4GR, 5GR and 6GR • Inhibits 1GR and 2GR (manual mode)
P0813 | Reverse sequence valve malfunction | • TCM detects reverse sequence valve malfunction. | • Inhibits 6GR
P0819 | Manual switch/up switch/down switch circuit malfunction (open circuit/short circuit) | M range switch circuit malfunction • M range switch remains on for 2 s or more except in D range. | • Inhibits manual mode control
Up switch or down switch circuit malfunction • When all of the following conditions are met: ― M range switch off. ― Except D range ― Up or down switch remains on for 10 s or more. | • Inhibits manual mode control using selector lever
P0826 | Steering shift switch circuit malfunction (open circuit/short to ground) | • TCM detects short circuit or short to ground in steering shift switch circuit when engine is running. | • Inhibits manual mode control
P0882 | TCM B+ low (less than 9 V) | • Voltage of less than 9 V detected at TCM terminals 1AD when engine is running. | • Emergency mode (all solenoid off) • Inhibits self learning control • Inhibits driver adaptive shift control • Inhibits TCC control • Inhibits slip control
P0961 | Line pressure control solenoid range/performance (stuck) | • Feedback current corresponding to solenoid current command value is irregular when engine is running. | • Emergency mode (all solenoid off) • Inhibits self learning control • Inhibits driver adaptive shift control • Inhibits TCC control • Inhibits slip control • Inhibits manual mode control • Inhibits 5GR and 6GR
P0962 | Line pressure control solenoid circuit malfunction (short to ground/open circuit) | • Open or short circuit in line pressure control solenoid signal system (while TCM monitors solenoid output voltage, the voltage that differs from the signal output by CPU in TCM is detected). | • Emergency mode (all solenoid off) • Inhibits self learning control • Inhibits driver adaptive shift control • Inhibits TCC control • Inhibits slip control • Inhibits manual mode control • Inhibits 5GR and 6GR
P0963 | Line pressure control solenoid circuit malfunction (short to power) | • Short circuit in line pressure control solenoid signal system (while TCM monitors solenoid output voltage, the voltage that differs from the signal output by CPU in TCM is detected). | • Emergency mode (all solenoid off) • Inhibits self learning control • Inhibits driver adaptive shift control • Inhibits TCC control • Inhibits slip control • Inhibits manual mode control • Inhibits 5GR and 6GR
P0969 | Shift solenoid F range/performance (stuck) | • Feedback current corresponding to solenoid current command value is irregular when engine is running. | • Emergency mode (all solenoid off) • Inhibits self learning control • Inhibits driver adaptive shift control • Inhibits TCC control • Inhibits slip control • Inhibits manual mode control • Inhibits 5GR and 6GR
P0970 | Shift solenoid F circuit malfunction (short to ground/open circuit) | • Open or short circuit in shift solenoid F signal system (while TCM monitors solenoid output voltage, the voltage that differs from the signal output by CPU in TCM is detected). | • Emergency mode (all solenoid off) • Inhibits self learning control • Inhibits driver adaptive shift control • Inhibits TCC control • Inhibits slip control • Inhibits manual mode control • Inhibits 5GR and 6GR
P0971 | Shift solenoid F circuit malfunction (short to power) | • Short circuit in shift solenoid F signal system (while TCM monitors solenoid output voltage, the voltage that differs from the signal output by CPU in TCM is detected). | • Emergency mode (all solenoid off) • Inhibits N—D shift pressure control • Inhibits self learning control • Inhibits driver adaptive shift control • Inhibits TCC control • Inhibits slip control • Inhibits manual mode control • Inhibits 5GR and 6GR
P0973 | Shift solenoid A circuit malfunction (short to ground) | • Short to ground in shift solenoid A signal system (while TCM monitors solenoid output voltage, the voltage that differs from the signal output by CPU in TCM is detected). | • Emergency mode (all solenoid off) • Inhibits self learning control • Inhibits driver adaptive shift control • Inhibits TCC control • Inhibits slip control • Inhibits manual mode control • Inhibits 5GR and 6GR
P0974 | Shift solenoid A circuit malfunction (short to power/open circuit) | • Open or short circuit in shift solenoid A signal system (while TCM monitors solenoid output voltage, the voltage that differs from the signal output by CPU in TCM is detected). | • Emergency mode (all solenoid off) • Inhibits self learning control • Inhibits driver adaptive shift control • Inhibits TCC control • Inhibits slip control • Inhibits manual mode control • Inhibits 5GR and 6GR
P0976 | Shift solenoid B circuit malfunction (short to ground) | • Short to ground in shift solenoid B signal system (while TCM monitors solenoid output voltage, the voltage that differs from the signal output by CPU in TCM is detected). | • Emergency mode (all solenoid off) • Inhibits self learning control • Inhibits driver adaptive shift control • Inhibits TCC control • Inhibits slip control • Inhibits manual mode control • Inhibits 5GR and 6GR
P0977 | Shift solenoid B circuit malfunction (short to power/open circuit) | • Open or short circuit in shift solenoid B signal system (while TCM monitors solenoid output voltage, the voltage that differs from the signal output by CPU in TCM is detected). | • Emergency mode (all solenoid off) • Inhibits self learning control • Inhibits driver adaptive shift control • Inhibits TCC control • Inhibits slip control • Inhibits manual mode control • Inhibits 5GR and 6GR
P0979 | Shift solenoid C circuit malfunction (short to ground) | • Short to ground in shift solenoid C signal system (while TCM monitors solenoid output voltage, the voltage that differs from the signal output by CPU in TCM is detected). | • Emergency mode (all solenoid off) • Inhibits self learning control • Inhibits driver adaptive shift control • Inhibits TCC control • Inhibits slip control • Inhibits manual mode control • Inhibits 5GR and 6GR
P0980 | Shift solenoid C circuit malfunction (short to power/open circuit) | • Open or short circuit in shift solenoid C signal system (while TCM monitors solenoid output voltage, the voltage that differs from the signal output by CPU in TCM is detected). | • Emergency mode (all solenoid off) • Inhibits self learning control • Inhibits driver adaptive shift control • Inhibits TCC control • Inhibits slip control • Inhibits manual mode control • Inhibits 5GR and 6GR
P0982 | Shift solenoid D circuit malfunction (short to ground) | • Short to ground in shift solenoid D signal system (while TCM monitors solenoid output voltage, the voltage that differs from the signal output by CPU in TCM is detected). | • Emergency mode (all solenoid off) • Inhibits self learning control • Inhibits driver adaptive shift control • Inhibits TCC control • Inhibits slip control • Inhibits manual mode control • Inhibits 5GR and 6GR
P0983 | Shift solenoid D circuit malfunction (short to power/open circuit) | • Open or short circuit in shift solenoid D signal system (while TCM monitors solenoid output voltage, the voltage that differs from the signal output by CPU in TCM is detected). | • Emergency mode (all solenoid off) • Inhibits self learning control • Inhibits driver adaptive shift control • Inhibits TCC control • Inhibits slip control • Inhibits manual mode control • Inhibits 5GR and 6GR
P0985 | Shift solenoid E circuit malfunction (short to ground) | • Short to ground in shift solenoid E signal system (while TCM monitors solenoid output voltage, the voltage that differs from the signal output by CPU in TCM is detected). | • Emergency mode (all solenoid off) • Inhibits self learning control • Inhibits driver adaptive shift control • Inhibits TCC control • Inhibits slip control • Inhibits manual mode control • Inhibits 5GR and 6GR
P0986 | Shift solenoid E circuit malfunction (short to power/open circuit) | • Open or short circuit in shift solenoid E signal system (while TCM monitors solenoid output voltage, the voltage that differs from the signal output by CPU in TCM is detected). | • Emergency mode (all solenoid off) • Inhibits self learning control • Inhibits driver adaptive shift control • Inhibits TCC control • Inhibits slip control • Inhibits manual mode control • Inhibits 5GR and 6GR
P2719 | Shift solenoid G range/performance (stuck) | • Feedback current corresponding to solenoid current command value is irregular when engine is running. | • Emergency mode (all solenoid off) • Inhibits self learning control • Inhibits driver adaptive shift control • Inhibits TCC control • Inhibits slip control • Inhibits manual mode control • Inhibits 5GR and 6GR
P2720 | Shift solenoid G circuit malfunction (short to ground/open circuit) | • Open or short circuit in shift solenoid G signal system (while TCM monitors solenoid output voltage, the voltage that differs from the signal output by CPU in TCM is detected). | • Emergency mode (all solenoid off) • Inhibits self learning control • Inhibits driver adaptive shift control • Inhibits TCC control • Inhibits slip control • Inhibits manual mode control • Inhibits 5GR and 6GR
P2721 | Shift solenoid G circuit malfunction (short to power) | • Short circuit in shift solenoid G signal system (while TCM monitors solenoid output voltage, the voltage that differs from the signal output by CPU in TCM is detected). | • Emergency mode (all solenoid off) • Inhibits self learning control • Inhibits driver adaptive shift control • Inhibits TCC control • Inhibits slip control • Inhibits manual mode control • Inhibits 5GR and 6GR
P2757 | Torque converter clutch (TCC) stuck off | • TCM detects that TCC control solenoid does not change from on when engine is running | N/A
P2758 | Torque converter clutch (TCC) stuck on | • TCM detects that TCC control solenoid does not change from off when engine is running | • Inhibits acceleration from 2GR
P2762 | TCC control solenoid range/performance (stuck) | • Feedback current corresponding to solenoid current command value is irregular when engine is running. | • Inhibits acceleration from 2GR • Inhibits self learning control • Inhibits TCC control • Inhibits slip control
P2763 | TCC control solenoid circuit malfunction (short to power) | • Short circuit in TCC control solenoid signal system (while TCM monitors solenoid output voltage, the voltage that differs from the signal output by CPU in TCM is detected). | • Inhibits acceleration from 2GR • Inhibits self learning control • Inhibits TCC control • Inhibits slip control
P2764 | TCC control solenoid circuit malfunction (short to ground/open circuit) | • Open or short circuit in TCC control solenoid signal system (while TCM monitors solenoid output voltage, the voltage that differs from the signal output by CPU in TCM is detected). | • Inhibits acceleration from 2GR • Inhibits self learning control • Inhibits TCC control • Inhibits slip control
U0073 | CAN BUS OFF | • Bus off error is detected. | • Inhibits self learning control • Inhibits driver adaptive shift control • Inhibits TCC control • Inhibits 5GR, 6GR • Inhibits slip control
U0100 | TCM cannot receive any signals from PCM | • Communication error is detected between TCM and PCM. | • Inhibits self learning control • Inhibits driver adaptive shift control • Inhibits TCC control • Inhibits 5GR, 6GR • Inhibits slip control

Emergency Mode

• Emergency mode shifts as follows when in D range or R position.

Condition | Selector lever position
--- | ---
D range | R position
Normal shifting | 1GR | 2GR | 3GR | 4GR | 5GR | 6GR | Reverse
When there is any malfunction in shift solenoids A, B, C, D, E, F, G, or line pressure control solenoid | 4GR | Reverse