Toyota AVENSIS 2000 Supplement Manual page 220

DTC P0753
DTC P0758
DTC P0768
CIRCUIT DESCRIPTION
Shifting from 1st to O/D is performed in combination with ON and OFF of the SL1 and SL2 solenoid valves
controlled by Engine and ECT ECU. If an open or short circuit occurs in either of the solenoid valves, the
Engine and ECT ECU controls the remaining normal solenoid valve to allow the vehicle to be operated
smoothly (Fail safe function).
DTC No.
The Engine and ECT ECU checks for an open or short circuit
in the SL1 and SL2 solenoid valves.
P0753 (a) When the solenoid is energized, the duty ratio exceed 75
P0758 %.
(b) When the solenoid is not energized, the duty ratio is less
than 3 %.
The Engine and ECT ECU checks for an open or short circuit
in the S4 solenoid valve circuit when it changes.
The Engine and ECT ECU records DTC P0768/65 if condition
(a) or (b) is detected.
P0768
(a) When the solenoid is energized, the solenoid resistance is
8 Ω or less and is counted.
(b) When the solenoid is not energized, the solenoid resistance
is 100 kΩ or more and is counted.
HINT:
Check the SL1 solenoid valve when DTC P0753/62 is output, check the SL2 solenoid valve when DTC
P0758/63 is output and check the S4 solenoid valve when DTC P0768/65 is output.
AVENSIS/CORONA SUP (RM781E)
DIAGNOSTICS
Shift Solenoid A Electrical Malfunction
(SL1 Solenoid Valve)
Shift Solenoid B Electrical Malfunction
(SL2 Solenoid Valve)
Shift Solenoid D Electrical Malfunction
(S4 Solenoid Valve)
DTC Detecting Condition
– AUTOMATIC TRANSAXLE (U240E)
S Open or short in SL1/SL2/S4 solenoid valve circuit
Open or short in SL1/SL2/S4 solenoid valve circuit
S SL1/SL2/S4 solenoid valve
S Engine and ECT ECU
Trouble Area
DI–89
DI6RY–03