Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Electronic controlled automatic transaxle / Shift solenoid ”a” control circuit
low/high
Toyota Corolla (E120): Shift solenoid ”a” control circuit low/high
Dtc p0973 shift solenoid ”a” control circuit low (shift solenoid valve s1)
Dtc p0974 shift solenoid ”a” control circuit high (shift solenoid valve s1)
Other materials:
Circuit description
The purpose of this circuit is to prevent the engine from stalling while
driving in lock–up condition, when
brakes are suddenly applied.
When the brake pedal is depressed, this switch sends a signals to the ecm. Then
the ecm cancels the operation
of the lock–up clutch while braking is i ...
Automatic transmission / trans
Preparation
Sst
Recomended tools
Equipment
Lubricant
Ssm (special service materials)
...
Inspection procedure
1 Input signal check
See input signal check on page 05–745.
check the indicator light operation when each of the set/
coast, resume/accel and cancel is turned on.
Ok:
set/coast, resume/accel switch:
the signals shown in the table on the left should be
output when each switch is ...