Toyota Tundra (2015 year). Manual — part 707
OK
NG
REPLACE SHIFT SOLENOID VALVE SL2
5.
INSPECT TRANSMISSION VALVE BODY ASSEMBLY
(a) Check the transmission valve body assembly
.
OK:
There are no foreign objects on any valve.
NG
REPAIR OR REPLACE TRANSMISSION VALVE BODY
ASSEMBLY
OK
REPAIR OR REPLACE AUTOMATIC TRANSMISSION
ASSEMBLY
AB60F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMIS...
Last Modified: 9-16-2014
6.6 C
Doc ID: RM000000W8G0I7X
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: AB60F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMISSION SYSTEM: P0778; Pressure Control
Solenoid "B" Electrical (Shift Solenoid Valve SL2); 2015 MY Tundra [08/2014 - ]
DTC
P0778
Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2)
DESCRIPTION
solenoid valves, the ECM controls the remaining normal shift solenoid valves to allow the vehicle to be operated
safely
.
DTC
CODE
DTC DETECTION CONDITION
TROUBLE AREA
P0778
The ECM checks for an open or short in the shift solenoid valve
SL2 circuit while driving and shifting gears (1 trip detection logic)
Output signal duty ratio equals to 100%
HINT:
SL2 output signal duty ratio is less than 100% under
normal condition
Open or short in shift
solenoid valve SL2 circuit
Shift solenoid valve SL2
ECM
MONITOR DESCRIPTION
This DTC indicates an open or short in the shift solenoid valve SL2 circuit. The ECM commands gear shifts by
turning the shift solenoid valves ON/OFF. When there is an open or short circuit in any shift solenoid valve circuit,
the ECM detects the problem, illuminates the MIL and stores the DTC. Also, the ECM performs the fail-safe
While driving and shifting gears, if the ECM detects an open or short in the shift solenoid valve SL2 circuit, the
ECM determines there is a malfunction
.
MONITOR STRATEGY
Related DTCs
P0778: Shift solenoid valve SL2/Range check
Required sensors/Components
Shift solenoid valve SL2
Duration
1 second
MIL operation
Immediately
TYPICAL ENABLING CONDITIONS
AB60F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMIS...
The monitor will run whenever the following DTCs are not present
None
Ignition switch
ON
Starter
OFF
Solenoid current cut status
Not cut
Battery voltage
11 V or more
TYPICAL MALFUNCTION THRESHOLDS
Solenoid status from solenoid driver MIC
Fail
COMPONENT OPERATING RANGE
Output signal duty
Less than 100%
WIRING DIAGRAM
INSPECTION PROCEDURE
NOTICE:
Perform the universal trip to clear permanent DTCs
.
HINT:
The shift solenoid valve SL2 is turned ON/OFF normally when the shift lever is on D:
ECM gear shift command
1st
2nd
3rd
4th
5th
6th
Shift solenoid valve SL2
ON
ON
ON
ON
OFF
OFF
PROCEDURE
AB60F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMIS...
OK
1.
INSPECT NO. 2 TRANSMISSION WIRE (SHIFT SOLENOID VALVE SL2)
(a) Disconnect the D64 No. 2 transmission wire connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
2 (SL2+) - 4 (SL2-)
20°C (68°F)
5.0 to 5.6 Ω
2 (SL2+) - Body ground
Always
10 kΩ or higher
4 (SL2-) - Body ground
Always
10 kΩ or higher
NG
GO TO STEP 3
2.
CHECK HARNESS AND CONNECTOR (NO. 2 TRANSMISSION WIRE - ECM)
AB60F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMIS...
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