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DI-1063
DIAGNOSTICS - AUTOMATIC TRANSMISSION (A750E for 1GR-FE)
DIDVM-01
DTC P0976 Shift Solenoid "B" Control Circuit Low
(Shift Solenoid Valve S2)
DTC P0977 Shift Solenoid "B" Control Circuit High
(Shift Solenoid Valve S2)
CIRCUIT DESCRIPTION
Shifting from 1st to 5th is performed in combination with "ON" and "OFF" operation of the shift solenoid valves
SL1, SL2, S1, S2 and SR which are controlled by the ECM. If an open or short circuit occurs in either of the
shift solenoid valves, the ECM controls the remaining normal shift solenoid valves to allow the vehicle to be
operated smoothly (See page DI-985).
DTC No. DTC Detection Condition Trouble Area
S Short in shift solenoid valve S2 circuit
ECM detects short in solenoid valve S2 circuit 2 times when
P0976 S Shift solenoid valve S2
solenoid valve S2 is operated (1-trip detection logic)
S ECM
S Open in shift solenoid valve S2 circuit
ECM detects open in solenoid valve S2 circuit 2 times when
P0977 S Shift solenoid valve S2
solenoid valve S2 is not operated (1-trip detection logic)
S ECM
MONITOR DESCRIPTION
These DTCs indicate an open or short in the shift solenoid valve S2 circuit. When there is an open or short
circuit in any shift solenoid valve circuit, the ECM detects the problem and illuminates the MIL and stores
the DTC. When the shift solenoid valve S2 is on, if resistance is 8 or less, the ECM determines there is
a short in the shift solenoid valve S2 circuit.
When the shift solenoid valve S2 is off, if resistance is 100 k or more, the ECM determines there is an open
in the shift solenoid valve S2 circuit (See page DI-985).
MONITOR STRATEGY
P0976 Shift solenoid valve S2/Range check (Low resistance)
Related DTCs
R l t d DTC
P0977 Shift solenoid valve S2/Range check (High resistance)
Required sensors/Components Shift solenoid valve S2
Frequency of operation Continuous
Duration 0.064 sec.
MIL operation Immediate
Sequence of operation None
DI-1064
DIAGNOSTICS - AUTOMATIC TRANSMISSION (A750E for 1GR-FE)
TYPICAL ENABLING CONDITIONS
Specification
Item
It
Minimum Maximum
The monitor will run whenever these
See page DI-963
DTCs are not present.
Range check (Low resistance)
Shift solenoid valve S2 ON
Range check (High resistance)
Shift solenoid valve S2 OFF
TYPICAL MALFUNCTION THRESHOLDS
Detection criteria Threshold
Range check (Low resistance)
Shift solenoid valve S2 resistance 8 or less
Range check (High resistance)
Shift solenoid valve S2 resistance 100 k or more
COMPONENT OPERATING RANGE
Parameter Standard value
Shift solenoid valve S2 Resistance: 11 to 15 at 20◦ Jabse Service Manual Search 2026 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo