Mazda 6 - Fail-Safe Function

ON-BOARD DIAGNOSTIC
K19
K
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 driving in D range.
Shift solenoid D malfunction (electrical) (P0768)
• If voltage is stuck at 0V or B+ in shift solenoid D valve control terminal 3S 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 TCC no
operation.
Shift solenoid E malfunction (electrical) (P0773)
• If voltage is stuck at 0V or B+ in shift solenoid E control terminal 3P of the PCM when the solenoid valve
operates according to PCM calculation.
Oil pressure switch circuit malfunction (P0841)
• No oil pressure switch signal input and revolution ratio of forward clutch drum revolution to differential gear
case revolution is below 0.91 or above 3.08 while in 1, 2 or 3GR.
• Oil pressure switch signal input and revolution ratio of forward clutch drum revolution to differential gear case
revolution is below 0.64 or above 0.82 while in 4GR.
End Of Sie
FAIL-SAFE FUNCTION
A6E567001030T04
• In the fail-safe function, minimum vehicle drivability is obtained by changing the signals that are determined to
be malfunctioning by the failure detection function to present values, and limiting the PCM control.
DTC No. Definition Fail-safe TCC
P0122 TP circuit low input
Throttle valve opening angle is fixed at the time
in order to determine shift
Inhibition
P0123 TP circuit high input Inhibition
P0500
Vehicle speed sensor (VSS) circuit
malfunction
 Available
P0706
Transaxle range (TR) switch circuit range/
performance
Inhibits gear shifting and maximizes line
pressure
Inhibition
P0707 Transaxle range (TR) switch circuit low input
P0708 Transaxle range (TR) switch circuit high input
P0711
Transaxle fluid temperature (TFT) sensor
circuit range/performance (stuck)
 Inhibition
P0712
Transaxle fluid temperature (TFT) sensor
circuit malfunction (short to ground)
Sets temperature to cold condition Inhibition
P0713
Transaxle fluid temperature (TFT) sensor
circuit malfunction (Open circuit)
P0715 Input/turbine speed sensor circuit malfunction Inhibits 4GR Inhibition
P0731 Gear 1 incorrect Inhibits 1GR and maximizes line pressure Available
P0732 Gear 2 incorrect Inhibits 2GR and maximizes line pressure Available
P0733 Gear 3 incorrect  Available
P0734 Gear 4 incorrect Inhibits 4GR and maximizes line pressure Available
P0741 Torque converter clutch (TCC) (stuck off) Inhibits TCC and maximizes line pressure Inhibition
P0742 Torque converter clutch (TCC) (stuck on) Inhibits TCC and maximizes line pressure Inhibition
P0745 Pressure control solenoid valve malfunction  Available
P0751 Shift solenoid A malfunction (Stuck off)
Inhibits 4GR and TCC and maximizes line
pressure
Inhibition
P0752 Shift solenoid A malfunction (Stuck on)
Inhibits 1GR, 2GR, and 3GR and maximizes
line pressure
Available
P0753 Shift solenoid A malfunction (Electrical)
Inhibits 4GR and TCC and maximizes line
pressure
Inhibition
P0756 Shift solenoid B malfunction (Stuck off)
Inhibits 1GR and 4GR and maximizes line
pressure
Available
P0757 Shift solenoid B malfunction (Stuck on)
Inhibits 2GR and 4GR and maximized line
pressure
Available
P0758 Shift solenoid B malfunction (Electrical)
Inhibits 1GR and 4GR and maximizes line
pressure
Available
P0761 Shift solenoid C malfunction (Stuck off)
Inhibits 1GR and 2GR and maximizes line
pressure
Available