2001 TOYOTA SEQUOIA terminal TC

D14139Overflow Plug
D14140
Refill Plug
12345678
9 10111213141516
D13649
DLC3:
CG
TC
± DIAGNOSTICSAUTOMATIC TRANSMISSION
DI±529
723 Author: Date:
2005 SEQUOIA (RM1146U)
(4) Temporarily install the gasket and overflow plug.
Torque: 20 NVm (204 kgfVcm, 15 ftVlbf)
(5) Add the proper amount of ATF through the refill
hole.
NOTICE:
Refill amount differs depending on the related procedures
indicated below.
Related proceduresRefill amount
Removal and installation of oil pan1.7 liters (1.8 us qts, 1.5 lmp.qts)
Removal of transmission valve body
assy4.3 liters (4.5 us qts, 3.8 lmp.qts)
Removal of torque converter assy5.4 liters (5.7 us qts, 4.8 lmp.qts)
(6) Temporarily install the O±ring and refill plug.
Torque: 39 NVm (400 kgfVcm, 29 ftVlbf)
(7) Lower down the vehicle.
(8) Using SST, create a short±circuit between terminals
TC and CG of the DLC3.
SST 09843±18040
(9) Start the engine and run at idle.
NOTICE:

The A/C switch must be turned off.

On models with active height control suspension &
adaptive variable suspension, turn the height control
switch off.
(10) Slowly move the shift lever from the P to the 2±L
position.
Return the shift lever to the P position.

D13654
D14231
When fluid
temperature
is low: offWhen fluid
temperature
is correct: onWhen fluid
temperature
is high: blinks
D14139Overflow Plug
DI±530
± DIAGNOSTICSAUTOMATIC TRANSMISSION
724 Author: Date:
2005 SEQUOIA (RM1146U)
(11) Switch to the fluid temperature detection mode.
Move the shift lever from the N to the D position, or
from D to N, within 1.5 seconds. (Repeat this opera-
tion for 6 seconds or more.)
OK: The A/T OIL TEMP warning light comes on for 2
seconds and then goes off.
(12) Disconnect terminals TC and CG after confirming
the above condition.
(13) Idle the engine to raise the fluid temperature.
(14) Lift up the vehicle immediately after the meter indi-
cator light (ATF temperature warning light) comes
on.
NOTICE:

Add fluid only when the meter indicator light is on.

Perform this procedure while the engine is idling.
(15) Remove the overflow plug. If ATF overflows, pro-
ceed to [*2].
If ATF does not overflow, proceed to [*3].
HINT:
ºOverflowº indicates the condition under which ATF drains out
from the overflow tube.
NOTICE:
Capacity of the overflow tube is approximately 3 cc.

D14141
12345678
9 10111213141516
D13649
DLC3:
CG
TC
D13654
DI±532
± DIAGNOSTICSAUTOMATIC TRANSMISSION
726 Author: Date:
2005 SEQUOIA (RM1146U)
(3) Install the overflow plug with a new gasket when the
draining ATF has becomes a trickle.
Torque: 20 NVm (204 kgfVcm, 15 ftVlbf)
(4) Install the refill plug with a new O±ring.
Torque: 39 NVm (400 kgfVcm, 29 ftVlbf)
(5) Lower down the vehicle.
(6) Turn the ignition switch off.
(7) Check for fluid leaks in the transmission.
If there are leaks, it is necessary to repair or replace O±rings,
FIPGs, oil seals, plugs or other related parts.
(d) When adding a minimum amount of fluid: [*4]
(1) Using SST, create a short±circuit between terminals
TC and CG of the DLC3.
SST 09843±18040
(2) Start the engine and run at idle.
NOTICE:
The A/C switch must be turned off.
(3) Slowly move the shift lever from the P to the 2±L
position. Return the shift lever to the P position.
(4) Switch to the fluid temperature detection mode.
Move the shift lever from the N to the D position, or
from D to N, within 1.5 seconds. (Repeat this opera-
tion for 6 seconds or more.)
OK: The A/T OIL TEMP warning light comes on for 2
seconds and then goes off.
(5) Disconnect terminals TC and CG after confirming
the above condition.
(6) Idle the engine to raise the fluid temperature.

DIDIY±01
D14145
E8E7E6E5E4
± DIAGNOSTICSAUTOMATIC TRANSMISSION
DI±559
753 Author: Date:
2005 SEQUOIA (RM1146U)
TERMINALS OF ECM
1. ECM
HINT:
Each ECM terminal's standard voltage is shown in the table below.
In the table, first follow the information under ºConditionº. Look under ºSymbols (Terminal No.)º for the termi-
nals to be inspected. The standard voltage between the terminals is shown under ºSpecific Conditionº.
Use the illustration above as a reference for the ECM terminals.
Symbols (Terminals No.)Wiring ColorTerminal DescriptionConditionSpecified Condition
LMS (E5±9) ± E1 (E6±1)P±L ± BRL shift position switch sig-
nalIG switch ON10 to 14 V
===IG switch ON and Press continu-
ously shift position L switchBelow 1 V
2 (E5±10) ± E1 (E6±1)L ± BR2 shift position switch sig-
nalIG switch ON and shift lever 2 and L
position10 to 14 V
===IG switch ON and shift lever except
2 and L positionBelow 1 V
R (E5±11) ± E1 (E6±1)B±Y ± BRR shift position switch sig-
nalIG switch ON and shift lever R posi-
tion10 to 14 V
===IG switch ON and shift lever except
R positionBelow 1 V
D (E5±21) ± E1 (E6±1)W±R ± BRD shift position switch sig-
nalIG switch ON and shift lever D and
4 position10 to 14 V
===IG switch ON and shift lever except
D and 4 positionBelow 1 V
3 (E5±19) ± E1 (E6±1)L ± BR3 shift position switch sig-
nalIG switch ON and shift lever 3 posi-
tion10 to 14 V
===IG switch ON and shift lever except
3 positionBelow 1 V
ODMS (E4±12) ± E1 (E6±1)L±W ± BRO/D main switch signalIG switch ON10 to 14 V
===IG switch ON and press continu-
ously O/D main switchBelow 1 V
STP (E4±15) ± E1 (E6±1)G±Y ± BRStop lamp switch signalBrake pedal is depressed7.5 to 14 V
===Brake pedal is releasedBelow 1.5 V
SLU+ (E7±15) ± SLU± (E7±14)P±L ± L±WSLU solenoid signal5th (lock±up) gearPulse generation
(See waveform 2)
S2 (E7±10) ± E1 (E6±1)W±L ± BRS2 solenoid signal2nd or 3rd gear10 to 14 V
===1st, 4th or 5th gearBelow 1 V
S1 (E7±11) ± E1 (E6±1)R ± BRS1 solenoid signal1st or 2nd gear10 to 14 V
===3rd, 4th or 5th gearBelow 1 V

D14146
5 V/DIV
1 ms/DIVGND
D14147
GND
5 V/DIV
1 ms/DIV
DI±560
± DIAGNOSTICSAUTOMATIC TRANSMISSION
754 Author: Date:
2005 SEQUOIA (RM1146U)SLT+ (E7±13) ± SLT± (E7±12)
B±R ± G±YSLT solenoid signalEngine idle speedPulse generation
(See waveform 1)
SR (E7±9) ± E1 (E6±1)G±R ± BRSR solenoid signal5th gear10 to 14 V
===1st gearBelow 1 V
SL2+ (E7±17) ± SL2± (E7±16)GR ± LG±BSL2 solenoid signalEngine idle speedPulse generation
(See waveform 3)
SL1+ (E7±19) ± SL1± (E7±18)R±B ± LSL1 solenoid signalEngine idle speedPulse generation
(See waveform 4)
THO1 (E7±24) ± E2 (E8±28)G ± G±WNo.1 ATF temperature
sensor signalNo.1 ATF temperature: 115
C (239

F) or moreBelow 1.5 V
THO2 (E7±32) ± E2 (E8±28)V ± G±WNo.2 ATF temperature
sensor signalNo.2 ATF temperature: 115
C (239

F) or moreBelow 1.5 V
SP2+ (E7±34) ± SP2± (E7±26)W±R ± Y±RSpeed sensor (SP2) sig-
nalVehicle speed 20 km/h (12 mph)Pulse generation
(See waveform 6)
NT+ (E7±35) ± NT± (E7±27)B ± WSpeed sensor (NT) signalEngine idle speedPulse generation
(See waveform 5)
STAR/NSW (E7±8) ± E1 (E6±1)B ± BRPark neutral switch signalIG switch ON and shift lever P and
N positionBelow 2 V
===IG switch ON and shift lever except
P and N position10 to 14 V
L4* (E6±13) ± E1 (E6±1)L±R ± BRTransfer L position switch
signalIG switch ON and transfer L posi-
tionBelow 1 V
===IG switch ON and transfer except L
position10 to 14 V
HINT:
*: 4WD
Waveform 1
Reference:
TerminalSLT+ ± SLT±
Tool setting5V/DIV, 1ms/DIV
Vehicle conditionEngine idle speed
Waveform 2
Reference:
TerminalSLU+ ± SLU±
Tool setting5V/DIV, 1ms/DIV
Vehicle condition5th (lock±up) or 6th (lock±up) gear

D14146
5 V/DIV
1 ms/DIVGND
D14146
5 V/DIV
1 ms/DIVGND
D14148
GND
1 V/DIV
2 ms/DIV
C13480D14149
GND
2 V/DIV
20 ms/DIV
± DIAGNOSTICSAUTOMATIC TRANSMISSION
DI±561
755 Author: Date:
2005 SEQUOIA (RM1146U)
Waveform 3
Reference:
TerminalSL2+ ± SL2±
Tool setting5V/DIV, 1ms/DIV
Vehicle conditionEngine idle speed
Waveform 4
Reference:
TerminalSL1+ ± SL1±
Tool setting5V/DIV, 1ms/DIV
Vehicle conditionEngine idle speed
Waveform 5
Reference:
TerminalNT+ ± NT±
Tool setting1V/DIV, 2ms/DIV
Vehicle conditionEngine idle speed (P or N position)
Waveform 6
Reference:
TerminalSP2+ ± SP2±
Tool setting2V/DIV, 20ms/DIV
Vehicle conditionVehicle speed 20 km/h (12 mph)



D14152
DTC was set.
0.5 sec. 0.5 sec. 0.5 sec.
 : Freeze frame data which can be read
D14151
DLC3
1314 1516 12 11 10 9 12345678
± DIAGNOSTICSAUTOMATIC TRANSMISSION
DI±563
757 Author: Date:
2005 SEQUOIA (RM1146U)
FREEZE FRAME DATA
Freeze frame data records the engine conditions (fuel system,
calculated load, engine coolant temperature, fuel trim, engine
speed, vehicle speed, etc.) when a malfunction is detected.
When troubleshooting, freeze frame data can help determine
if the vehicle was running or stopped, if the engine was warmed
up or not, if the air/fuel ratio was Lean or Rich, and other data
from the time the malfunction occurred.
The hand±held tester records freeze frame data in five different
instances: 1) 3 times before the DTC is set, 2) once when the
DTC is set, and 3) once after the DTC is set. These data can be
used to simulate the vehicle's condition around the time when
the malfunction occurred. The data may help find the cause of
the malfunction, or judge if the DTC is being caused by a tempo-
rary malfunction or not.
DLC3 (Data Link Connector 3)
The vehicle's ECM uses the ISO 15765±4 for communication
protocol. The terminal arrangement of the DLC3 complies with
SAE J1962 and matches the ISO 15765±4 format.
HINT:
Connect the cable of the hand±held tester to the DLC3, turn the
ignition switch ON and attempt to use the hand±held tester. If
the screen displays UNABLE TO CONNECT TO VEHICLE, a
problem exists in the vehicle side or the tester side.
If the communication is normal when the tool is connected to
another vehicle, inspect the DLC3 on the original vehicle.
If the communication is still impossible when the tool is con-
nected to another vehicle, the problem is probably in the tool it-
self. Consult the Service Department listed in the tool's instruc-
tion manual.
SymbolTerminal No.NameReference terminalResultCondition
SIL7Bus º+º line5 ± Signal groundPulse generationDuring transmission
CG4Chassis groundBody groundBelow 1 WAlways
SG5Signal groundBody groundBelow 1 WAlways
BAT16Battery positiveBody ground11 to 14 VAlways
CANH6HIGH±level CAN
bus lineCANL54 to 69 WIG switch OFF
CANH6HIGH±level CAN
bus lineBattery positive1 MW or higherIG switch OFF
CANH6HIGH±level CAN
bus lineCG1 kW or higherIG switch OFF
CANL14LOW±level CAN
bus lineBattery positive1 MW or higherIG switch OFF
CANL14LOW±level CAN
bus lineCG1 kW or higherIG switch OFF

A67628A67628D14156
Acceptable
Resistance
Te m p .
± DIAGNOSTICSAUTOMATIC TRANSMISSION
DI±583
777 Author: Date:
2005 SEQUOIA (RM1146U)
CIRCUIT DESCRIPTION
The ATF (Automatic Transmission Fluid) temperature sensor
converts the fluid temperature into a resistance value which is
input into the ECM.
The ECM applies a voltage to the temperature sensor through
ECM terminal THO1.
The sensor resistance changes with the transmission fluid tem-
perature. As the temperature becomes higher, the sensor resis-
tance decreases.
One terminal of the sensor is grounded so that the sensor resis-
tance decreases and the voltage goes down as the tempera-
ture becomes higher.
The ECM calculates the fluid temperature based on the voltage
signal.
DTC No.DTC Detection ConditionTrouble Area
P0710
(a) and (b) are detected momentarily within 0.5 sec. when
neither P0712 nor P0713 is detected (1±trip detection logic)
(a) ATF temperature sensor No.1 resistance is less than 79 W.
(b) ATF temperature sensor No.1 resistance is more than 156
kW.
HINT:
Within 0.5 sec., the malfunction switches from (a) to (b) or from
(b) to (a)

Open or short in ATF temperature sensor No.1 circuit

Transmission wire (ATF temperature sensor No.1)

ECM
P0712ATF temperature sensor No.1 resistance is less than 79 W for
0.5 sec. or more (1±trip detection logic)
Short in ATF temperature sensor No.1 circuit

Transmission wire (ATF temperature sensor No.1)

ECM
P0713
ATF temperature No.1 sensor resistance is more than 156 kW
when 15 minutes or more have elapsed after the engine start
DTC is detected for 0.5 sec. or more (1±trip detection logic)
Open in ATF temperature sensor No.1 circuit

Transmission wire (ATF temperature sensor No.1)

ECM
MONITOR DESCRIPTION
These DTCs indicate an open or short in the automatic transmission fluid (ATF) temperature sensor circuit.
The automatic transmission fluid (ATF) temperature sensor converts ATF temperature to an electrical resis-
tance value. Based on the resistance, the ECM determines the ATF temperature, and the ECM detects an
open or short in the ATF temperature circuit. If the resistance value of the ATF temperature is less than 79W
*1
or more than 156kW*2, the ECM interprets this as a fault in the ATF sensor or wiring. The ECM will turn on
the MIL and store the DTC.
*1: 150C (302F) or more is indicated regardless of the actual ATF temperature.
*2: ±40C (±40F) is indicated regardless of the actual ATF temperature.
HINT:
The ATF temperature can be checked on the OBD II scan tool or hand±held tester display.