Fail-Safe Function - Mazda 6 Training Manual

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

• 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.
P0122 TP circuit low input
P0123 TP circuit high input
Vehicle speed sensor (VSS) circuit
P0500
malfunction
Transale range (TR) switch circuit range/
P0706
performance
P0707 Transale range (TR) switch circuit low input
P0708 Transale range (TR) switch circuit high input
Transale fluid temperature (TFT) sensor
P0711
circuit range/performance (stuck)
Transale fluid temperature (TFT) sensor
P0712
circuit malfunction (short to ground)
Transale fluid temperature (TFT) sensor
P0713
circuit malfunction (Open circuit)
P0715 Input/turbine speed sensor circuit malfunction Inhibits 4GR
P0731 Gear 1 incorrect
P0732 Gear 2 incorrect
P0733 Gear 3 incorrect
P0734 Gear 4 incorrect
P0741 Torque converter clutch (TCC) (stuck off)
P0742 Torque converter clutch (TCC) (stuck on)
P0745 Pressure control solenoid valve malfunction
P0751 Shift solenoid A malfunction (Stuck off)
P0752 Shift solenoid A malfunction (Stuck on)
P0753 Shift solenoid A malfunction (Electrical)
P0756 Shift solenoid B malfunction (Stuck off)
P0757 Shift solenoid B malfunction (Stuck on)
P0758 Shift solenoid B malfunction (Electrical)
P0761 Shift solenoid C malfunction (Stuck off)
ON-BOARD DIAGNOSTIC
Definition Fail-safe
Throttle valve opening angle is fied at the time
in order to determine shift
–
Inhibits gear shifting and maimizes line
pressure
–
Sets temperature to cold condition
Inhibits 1GR and maimizes line pressure
Inhibits 2GR and maimizes line pressure
–
Inhibits 4GR and maimizes line pressure
Inhibits TCC and maimizes line pressure
Inhibits TCC and maimizes line pressure
–
Inhibits 4GR and TCC and maimizes line
pressure
Inhibits 1GR, 2GR, and 3GR and maimizes
line pressure
Inhibits 4GR and TCC and maimizes line
pressure
Inhibits 1GR and 4GR and maimizes line
pressure
Inhibits 2GR and 4GR and maimized line
pressure
Inhibits 1GR and 4GR and maimizes line
pressure
Inhibits 1GR and 2GR and maimizes line
pressure
K
A6E567001030T04
TCC
Inhibition
Inhibition
Available
Inhibition
Inhibition
Inhibition
Inhibition
Available
Available
Available
Available
Inhibition
Inhibition
Available
Inhibition
Available
Inhibition
Available
Available
Available
Available
K–19