Toyota Tundra (2015 year). Manual — part 719
(a) Remove shift solenoid valve S4.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
TESTER CONNECTION
CONDITION SPECIFIED CONDITION
Shift solenoid valve S4 connector terminal - Shift solenoid valve S4 body
20°C (68°F)
11 to 15 Ω
OK:
Valve moves and makes an operating noise.
NG
REPLACE SHIFT SOLENOID VALVE S4
OK
REPAIR OR REPLACE NO. 1 TRANSMISSION WIRE
AB60F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMIS...
Last Modified: 9-16-2014
6.6 C
Doc ID: RM000000W8H0CFX
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: AB60F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMISSION SYSTEM: P0985,P0986; Shift Solenoid
"E" Control Circuit Low (Shift Solenoid Valve SR); 2015 MY Tundra [08/2014 - ]
DTC
P0985
Shift Solenoid "E" Control Circuit Low (Shift Solenoid Valve SR)
DTC
P0986
Shift Solenoid "E" Control Circuit High (Shift Solenoid Valve SR)
DESCRIPTION
solenoid valves, the ECM controls the remaining normal shift solenoid valves to allow the vehicle to be operated
safely. Also, the ECM stops sending the current to the open or short circuited solenoid
.
DTC
CODE
DTC DETECTION CONDITION
TROUBLE AREA
P0985
ECM detects short in solenoid valve SR circuit 2 times when
solenoid valve SR is operated (1 trip detection logic)
Short in shift solenoid
valve SR circuit
Shift solenoid valve SR
ECM
P0986
ECM detects open in solenoid valve SR circuit 2 times when
solenoid valve SR is not operated (1 trip detection logic)
Open in shift solenoid
valve SR circuit
Shift solenoid valve SR
ECM
MONITOR DESCRIPTION
These DTCs indicate an open or short in the shift solenoid valve SR circuit. 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. When
the shift solenoid valve SR is ON, if its resistance is 8 Ω or less, the ECM determines there is a short in the shift
solenoid valve SR circuit.
When the shift solenoid valve SR is OFF, if its resistance is 100 kΩ or more, the ECM determines there is an open
in the shift solenoid valve SR circuit
.
MONITOR STRATEGY
Related DTCs
P0985: Shift solenoid valve SR/Range check (Low resistance)
P0986: Shift solenoid valve SR/Range check (High resistance)
Required sensors/Components
Shift solenoid valve SR
AB60F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMIS...
Duration
0.128 seconds or more
MIL operation
Immediately
TYPICAL ENABLING CONDITIONS
All
The monitor will run whenever the following DTCs are not present
None
Battery voltage
8 V or more
Ignition switch
ON
Starter
OFF
P0985: Range Check (Low Resistance)
Command to shift solenoid valve SR
ON
P0986: Range Check (High Resistance)
Command to shift solenoid valve SR
OFF
TYPICAL MALFUNCTION THRESHOLDS
P0985: Range Check (Low Resistance)
Shift solenoid valve SR resistance
8 Ω or less
P0986: Range Check (High Resistance)
Shift solenoid valve SR resistance
100 kΩ or more
COMPONENT OPERATING RANGE
Shift solenoid valve SR resistance
11 to 15 Ω at 20°C (68°F)
WIRING DIAGRAM
AB60F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMIS...
INSPECTION PROCEDURE
NOTICE:
Perform the universal trip to clear permanent DTCs
.
HINT:
The shift solenoid valve SR 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 SR
ON
ON
ON
ON
OFF
OFF
PROCEDURE
1.
INSPECT NO. 1 TRANSMISSION WIRE (SHIFT SOLENOID VALVE SR)
(a) Disconnect the D63 No. 1 transmission wire connector.
(b) Measure the resistance according to the value(s) in the table below.
AB60F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMIS...
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