#
FAILURE DETECTION FUNCTION [FN4A-EL]

id0502a1100300

DTC Table

X: Available

DTC No. | Condition | MIL | HOLD indicator light flashes | DC | Monitor item | Memory function
--- | --- | --- | --- | --- | --- | ---
P0500 | VSS circuit malfunction (ATX) | ON | YES | 2 | CCM | X
P0706 | Transaxle range (TR) switch circuit range/performance | ON | YES | 2 | CCM | X
P0707 | Transaxle range (TR) switch circuit low input | ON | YES | 1 | CCM | X
P0708 | Transaxle range (TR) switch circuit high input | ON | YES | 2 | CCM | X
P0711 | Transaxle fluid temperature (TFT) sensor circuit range/performance | ON | NO | 2 | CCM | X
P0712 | Transaxle fluid temperature (TFT) sensor circuit malfunction (Short to ground) | ON | YES | 1 | CCM | X
P0713 | Transaxle fluid temperature (TFT) sensor circuit malfunction (Open circuit) | ON | YES | 1 | CCM | X
P0715 | Input/turbine speed sensor circuit malfunction | ON | YES | 1 | CCM | X
P0731 | Gear 1 incorrect (Incorrect Gear Ratio Detected) | OFF | YES | 1 | CCM | X
P0732 | Gear 2 incorrect (Incorrect Gear Ratio Detected) | OFF | YES | 1 | CCM | X
P0733 | Gear 3 incorrect (Incorrect Gear Ratio Detected) | OFF | YES | 1 | CCM | X
P0734 | Gear 4 incorrect (Incorrect Gear Ratio Detected) | OFF | YES | 1 | CCM | X
P0741 | Torque converter clutch (TCC) (Stuck OFF) | OFF | YES | 1 | CCM | X
P0742 | Torque converter clutch (TCC) (Stuck ON) | OFF | YES | 1 | CCM | X
P0745 | Pressure control solenoid malfunction | OFF | YES | 1 | CCM | X
P0751 | Shift solenoid A stuck OFF | ON | YES | 2 | CCM | X
P0752 | Shift solenoid A stuck ON | ON | YES | 2 | CCM | X
P0753 | Shift solenoid A malfunction (Electrical) | ON | YES | 1 | CCM | X
P0756 | Shift solenoid B stuck OFF | ON | YES | 2 | CCM | X
P0757 | Shift solenoid B stuck ON | ON | YES | 2 | CCM | X
P0758 | Shift solenoid B malfunction (Electrical) | ON | YES | 1 | CCM | X
P0761 | Shift solenoid C stuck OFF | ON | YES | 2 | CCM | X
P0762 | Shift solenoid C stuck ON | ON | YES | 2 | CCM | X
P0763 | Shift solenoid C malfunction (Electrical) | ON | YES | 1 | CCM | X
P0766 | Shift solenoid D stuck OFF | ON | YES | 2 | CCM | X
P0767 | Shift solenoid D stuck ON | ON | YES | 2 | CCM | X
P0768 | Shift solenoid D malfunction (Electrical) | ON | YES | 1 | CCM | X
P0771 | Shift solenoid E stuck OFF | ON | YES | 2 | CCM | X
P0772 | Shift solenoid E stuck ON | ON | YES | 2 | CCM | X
P0773 | Shift solenoid E malfunction (Electrical) | ON | YES | 1 | CCM | X

## Failure Detection Function

• The failure detection function compares input/output devices and system components operation to normal condition values pre-programmed in the PCM.
• If a failure is detected, the HOLD indicator light flashes to warn the driver of a malfunction in the powertrain system components or sensors/switches.
• The stored DTCs in the PCM are retrieved using the WDS or equivalent.
• The failures are detected according to the following detection concepts. Detection concepts of the TP sensor malfunction (P0122, P0123) are mentioned in the ENGINE section.
Vehicle speed sensor (VSS) circuit malfunction (P0500)
• No VSS signal is input to PCM terminal 1AY when engine coolant temperature is above 60 °C {140 °F} and input/turbine speed sensor signal is above 1,500 rpm and selector lever position is at D, S or L range.
Transaxle range (TR) switch circuit range/performance (P0706)
• No TR signal (P, R, N, D, S or L range/position) Input to PCM terminal 1X when engine speed is above 530 rpm and vehicle speed is above 20 km/h {12 mph} and voltage at PCM terminal 1X is 0.5 V or above.
Transaxle range (TR) switch circuit low input (P0707)
• Input voltage from TR switch to PCM terminal 1X below 0.5 V when engine speed is above 530 rpm and vehicle speed is above 20 km/h {12 mph}.
Transaxle range (TR) switch circuit high input (P0708)
• Input voltage from TR switch to PCM terminal 1X above 4.79 V when engine speed is above 530 rpm and vehicle speed is above 20 km/h {12 mph}.
Transaxle fluid temperature (TFT) sensor range/performance (Stuck) (P0711)
• When 180 s have passed after engine is started, vehicle is driven for 150 s or more at vehicle speed between 25 and 59 km/h {15 and 36 mph}, then 60 km/h {37 mph} or more for 100 s or more.
Transaxle fluid temperature (TFT) sensor circuit malfunction (Open or short) (P0712)
• Input voltage from TFT sensor to PCM terminal 1AU and 1AN maintains 0.06 V when vehicle speed is above 20 km/h {12 mph}.
Transaxle fluid temperature (TFT) sensor circuit malfunction (short to ground) (P0713)
• Input voltage from TFT sensor to PCM terminal 1AU and 1AN maintains 4.67 V when vehicle speed is above 20 km/h {12 mph}.
Input/turbine speed sensor circuit malfunction (P0715)
• No input/turbine speed sensor signal to PCM terminals 1K and 1O when vehicle speed is above 40 km/h {25 mph} and selector lever position is at D, S, or L range.
Gear incorrect (P0731, P0732, P0733, P0734)
• If the RPM difference between the forward clutch drum revolution and differential gear case revolution exceeds or falls below the pre-programmed RPM difference in the PCM while driving in each gear, the OBD system judges "gear incorrect".
Gear 1 incorrect (P0731)
• Revolution ratio of forward clutch drum revolution to differential gear case revolution is below 2.157 while in 1GR.
Gear 2 incorrect (P0732)
• Revolution ratio of forward clutch drum revolution to differential gear case revolution is below 1.249 or above 2.157 while in 2GR.
Gear 3 incorrect (P0733)
• Revolution ratio of forward clutch drum revolution to differential gear case revolution is below 0.863 or above 1.249 while in 3GR.
Gear 4 incorrect (P0734)
• Revolution ratio of forward clutch drum revolution to differential gear case revolution is below 0.6 or 1.249 or above while in 4GR.
Torque converter clutch (TCC) (Stuck OFF) (P0741)
• Difference between engine speed and turbine speed more than 100 rpm while TCC is operating.
Torque converter clutch (TCC) (Stuck ON) (P0742)
• Difference between engine speed and turbine speed below 50 rpm while TCC is not operating.
Pressure control solenoid valve malfunction (P0745)
• If voltage is stuck at 0V or B+ in pressure control solenoid control terminal 1AF of the PCM when the solenoid valve operates according to PCM calculation.
Shift solenoid A malfunction (Stuck OFF) (P0751)
• Revolution ratio of forward clutch drum revolution to differential gear case revolution within 0.91-1.09 in 4GR and DTCs not output
Shift solenoid A malfunction (Stuck ON) (P0752)
• Input/turbine speed sensor signal 187.5 rpm or above in D range
Shift solenoid A malfunction (Electrical) (P0753)
• If voltage is stuck at 0V or B+ in shift solenoid A control terminal 1AZ of the PCM when the solenoid valve operates according to PCM calculation.
Shift solenoid B malfunction (Stuck OFF) (P0756)
• Revolution ratio of forward clutch drum revolution to differential gear case revolution below 2.157 in 1GR and DTCs not output.
Shift solenoid B malfunction (Stuck ON) (P0757)
• Revolution ratio of forward clutch drum revolution to differential gear case revolution below 1.249 or more than 2.157 in D range 2GR.
Shift solenoid B malfunction (Electrical) (P0758)
• If voltage is stuck at 0V or B+ in shift solenoid B control terminal 1BH of the PCM when the solenoid valve operates according to PCM calculation.
Shift solenoid C malfunction (Stuck OFF) (P0761)
• Revolution ratio of forward clutch drum revolution to differential gear case revolution below 2.157 in D range 1GR and 2GR.
Shift solenoid C malfunction (Stuck ON) (P0762)
• Revolution ratio of forward clutch drum revolution to differential gear case revolution 1.249 or above in D range 3GR.
Shift solenoid C malfunction (Electrical) (P0763)
• If voltage is stuck at 0V or B+ in shift solenoid C control terminal 1BD of the PCM when the solenoid valve operates according to PCM calculation.
Shift solenoid D malfunction (Stuck OFF) (P0766)
• Revolution ratio of forward clutch drum revolution to differential gear case revolution 0.863 or above in D range 4GR.
Shift solenoid D malfunction (Stuck ON) (P0767)
• Revolution ratio of forward clutch drum revolution to differential gear case revolution below 0.863 or 1.249 or above in D range and when the ATF is 130 °C {266 °F} or above.
Shift solenoid D malfunction (Electrical) (P0768)
• If voltage is stuck at 0V or B+ in shift solenoid D valve control terminal 1AJ of the PCM when the solenoid valve operates according to PCM calculation.
Shift solenoid E malfunction (Stuck OFF) (P0771)
• Difference between engine speed and turbine speed more than 100 rpm in driving in 4GR at D range TCC operation.
Shift solenoid E malfunction (Stuck ON) (P0772)
• Difference between engine speed and turbine speed below 50 rpm in driving in 4GR at D range while TCC is not operating.
Shift solenoid E malfunction (Electrical) (P0773)
• If voltage is stuck at 0V or B+ in shift solenoid E control terminal 1AR of the PCM when the solenoid valve operates according to PCM calculation.