Page 425 of 4323
B17411E8
IGT8
IGT2IGT4
IGT5 IGT6IGT3
IGT7IGT1E1(+)(±) (+) (+)
(+)
(+)
(+)
(+)
(+)
E6
± DIAGNOSTICSENGINE
DI±231
425 Author: Date:
2005 SEQUOIA (RM1146U)
6 Disconnect ignition coil with igniter connector, and check voltage between ter-
minals IGT1 ± IGT8 and E1 of ECM connector.
PREPARATION:
(a) Disconnect the I1, I2, I3, I4, I5, I6, I7 or I8 ignition coil with
igniter connector.
(b) Turn the ignition switch to ON.
CHECK:
Measure the voltage between terminals the E6 and E8 ECM
connectors when the engine is cranked.
OK:
Standard:
Tester ConnectionSpecified Condition
IGT1 (E8±8) ± E1 (E6±1)4.5 V or more
IGT2 (E8±15) ± E1 (E6±1)4.5 V or more
IGT3 (E8±11) ± E1 (E6±1)4.5 V or more
IGT4 (E8±10) ± E1 (E6±1)4.5 V or more
IGT5 (E8±13) ± E1 (E6±1)4.5 V or more
IGT6 (E8±12) ± E1 (E6±1)4.5 V or more
IGT7 (E8±14) ± E1 (E6±1)4.5 V or more
IGT8 (E8±9) ± E1 (E6±1)4.5 V or more
NG Replace ECM (See page SF±80).
OK
Page 426 of 4323
A21025
Wire Harness Side:
I1
I2
I3I4
I5I6
I7I8Ignition Coil with
Igniter Connector
DI±232
± DIAGNOSTICSENGINE
426 Author: Date:
2005 SEQUOIA (RM1146U)
7 Check ignition coil with igniter power source circuit.
PREPARATION:
(a) Disconnect the I1, I2, I3, I4, I5, I6, I7 or I8 ignition coil with
igniter connector.
(b) Turn the ignition switch to ON.
CHECK:
Measure the voltage between the terminal of the wire harness
side connector and body ground.
OK:
Standard:
Tester ConnectionSpecified Condition
I1±1 ± Body ground
I2±1 ± Body ground
I3±1 ± Body ground
I4±1 ± Body ground9t 14VI5±1 ± Body ground9 to 14 V
I6±1 ± Body ground
I7±1 ± Body ground
I8±1 ± Body ground
OK Repair ignition coil with igniter.
NG
Page 427 of 4323

A21025
Wire Harness Side:
I1
I2
I3I4
I5I6
I7I8Ignition Coil with Igniter
A21378
Wire Harness Side:
I18
Ignition SwitchIG2
± DIAGNOSTICSENGINE
DI±233
427 Author: Date:
2005 SEQUOIA (RM1146U)
8 Check for open and short in harness and connector between ignition switch and
ignition coil with igniter.
PREPARATION:
(a) Disconnect the I1, 2, I3, I4, I5, I6, I7 or I8 ignition coil with
igniter connector.
(b) Disconnect the I18 ignition switch connector.
CHECK:
Measure the resistance between the wire harness side connec-
tors.
OK:
Standard:
Tester ConnectionSpecified Condition
Ignition coil (I1±1) ± IG2 (I18±6)Below 1 W
Ignition coil (I2±1) ± IG2 (I18±6)Below 1 W
Ignition coil (I3±1) ± IG2 (I18±6)Below 1 W
Ignition coil (I4±1) ± IG2 (I18±6)Below 1 W
Ignition coil (I5±1) ± IG2 (I18±6)Below 1 W
Ignition coil (I6±1) ± IG2 (I18±6)Below 1 W
Ignition coil (I7±1) ± IG2 (I18±6)Below 1 W
Ignition coil (I8±1) ± IG2 (I18±6)Below 1 W
Ignition coil (I1±1) or IG2 (I18±6) ±
Body ground10 kW or higher
Ignition coil (I2±1) or IG2 (I18±6) ±
Body ground10 kW or higher
Ignition coil (I3±1) or IG2 (I18±6) ±
Body ground10 kW or higher
Ignition coil (I4±1) or IG2 (I18±6) ±
Body ground10 kW or higher
Ignition coil (I5±1) or IG2 (I18±6) ±
Body ground10 kW or higher
Ignition coil (I6±1) or IG2 (I18±6) ±
Body ground10 kW or higher
Ignition coil (I7±1) or IG2 (I18±6) ±
Body ground10 kW or higher
Ignition coil (I8±1) or IG2 (I18±6) ±
Body ground10 kW or higher
NG Repair or replace harness or connector.
OK
Replace ignition coil with igniter.
Page 506 of 4323

DI±304
± DIAGNOSTICSENGINE
498 Author: Date:
2005 SEQUOIA (RM1146U)
DTC P1340, P1341 Camshaft Position Sensor ºAº (Bank
Sensor 1)
CIRCUIT DESCRIPTION
Camshaft position sensor (G signal) consists of a magnet, iron core and pickup coil.
The camshaft drive gear (LH) has 3 teeth on its inner circumference. When the camshaft gear rotates, air
gap changes between the protrusion on the gear and the pickup coil. The change affects the magnetic field
and result in change in the resistance of the MRE element.
The crankshaft signal plate has 32 teeth and is mounted on the crankshaft. The crankshaft position sensor
generates 32 signals at every engine revolution. The ECM detects the standard crankshaft angle based on
the G signal and the actual crankshaft angle and the engine speed by the NE signal.
DTC No.DTC Detecting ConditionTrouble Area
P1340
No camshaft position sensor signal to ECM during cranking
(2 trip detection logic)Open or short in camshaft position sensor circuit
Camshaft position sensor
P1340
P1341No camshaft position sensor signal to ECM with engine speed
600 rpm or more
Camshaft osition sensor
LH camshaft timing pulley
ECM
MONITOR DESCRIPTION
The camshaft position sensor (G signal) consists of a magnet and MRE element.
The camshaft drive gear has 5 teeth on its inner circumference. When the camshaft gear rotates, air gap
changes between the protrusion on the gear and the pickup coil. The change affects the magnetic field and
result in change in the resistance of the MRE element. The crankshaft angle sensor plate has 32 teeth and
output 32 signals every engine revolution. The ECM detects the standard crankshaft angle based on the
G signal and actual crankshaft angle and engine speed by NE signal.
MONITOR STRATEGY
RltdDTC
P1340Camshaft position sensor (Bank 1) range check
or rationality
Related DTCs
P1341Camshaft position sensor (Bank 1) range check
or rationality
Rid / tMain sensors/componentsCamshaft position sensorRequired sensors/componentsRelated sensors/componentsCrankshaft position sensor, Engine speed sensor
Frequency of operationContinuous
Duration5 sec.
MIL operationP1340 case 1 (no signal): 2 driving cycles
P1340 case 2 (mis±aligned), P1341: Immediate
Sequence of operationNone
TYPICAL ENABLING CONDITIONS
ItSpecificationItemMinimumMaximum
The monitor will run whenever these
DTCs are not presentSee page DI±18
P1340 Case 1 (No signal):
StarterON
Minimum battery voltage while starter ON±11 V
DID8F±01
Page 726 of 4323

DIDIP±01
12345678
9 10111213141516
D13649
DLC3:
CG
TC
D13654
DI±524
± DIAGNOSTICSAUTOMATIC TRANSMISSION
718 Author: Date:
2005 SEQUOIA (RM1146U)
BASIC INSPECTION
1. CHECK FLUID LEVEL
(a) Using SST, create a short±circuit between terminals TC
and CG of the DLC3.
SST 09843±18040
(b) Start the engine and run at idle.
The A/C switch must be turned off.
On models with active height control suspension &
adaptive variable suspension, turn the height con-
trol switch off.
(c) Slowly move the shift lever through all positions from P to
L, and move it back to the P position.
(d) 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 operation for 6 se-
conds or more.)
OK: The A/T OIL TEMP warning light comes on for 2
seconds and then goes off.
(e) Return the shift lever to the P position and disconnect ter-
minals TC and CG.
(f) Idle the engine to raise oil temperature.
(g) Lift up the vehicle immediately after the meter indicator
light (ATF temperature warning light) comes on.
The A/T OIL TEMP warning light indicates the ATF
temperature according to the following table.
ATF Temp.Less than optimized
temperatureOptimized temperatureMore than optimized
temperature
A/T OIL TEMP warning lightOFFONBlinking
Page 733 of 4323
D14141
D14140
Refill Plug
D14138
± DIAGNOSTICSAUTOMATIC TRANSMISSION
DI±531
725 Author: Date:
2005 SEQUOIA (RM1146U)
(b) When fluid overflows: [*2]
(1) Install the overflow plug with a new gasket when the
draining ATF has become a trickle.
Torque: 20 NVm (204 kgfVcm, 15 ftVlbf)
(2) Install the refill plug with a new O±ring.
Torque: 39 NVm (400 kgfVcm, 29 ftVlbf)
(3) Lower down the vehicle.
(4) Turn the ignition switch off and remove the SST.
(5) 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.
(c) When fluid does not overflow:
[*3]
(1) Remove the refill plug.
(2) Add ATF through the refill hole until it drains out from
the overflow hole.
Page 734 of 4323

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.
Page 735 of 4323

D14231
When fluid
temperature
is low: offWhen fluid
temperature
is correct: onWhen fluid
temperature
is high: blinks
D14139Overflow Plug
D14141
D14140
Refill Plug
± DIAGNOSTICSAUTOMATIC TRANSMISSION
DI±533
727 Author: Date:
2005 SEQUOIA (RM1146U)
(7) 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.
(8) Remove the overflow plug. If ATF overflows, pro-
ceed to [*5]. If ATF does not overflow, proceed to
[*6].
HINT:
ºOverflowº indicates the condition under which ATF drains out
from the overflow tube.
(e) When fluid overflows: [*5]
(1) Install the overflow plug with a new gasket when the
draining ATF has become a trickle.
Torque: 20 NVm (204 kgfVcm, 15 ftVlbf)
(2) Install the refill plug with a new O±ring.
Torque: 39 NVm (400 kgfVcm, 29 ftVlbf)
(3) Lower down the vehicle.
(4) Turn the ignition switch off.
(5) 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.
(f) When fluid does not overflow: [*6]
(1) Remove the refill plug.