2001 TOYOTA SEQUOIA Service Repair Manual

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Page 505 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual ± DIAGNOSTICSENGINE
DI±303
497 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION PROCEDURE
1 Read current DTC.
NOTICE:
If P0630 is present, the VIN must be input to the ECM using the hand±held te

Page 506 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual 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) consis

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 507 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual A23558
C2
Crankshaft Position Sensor
*1: Shielded C1
Crankshaft Position Sensor
ECM
G±B
(*1)
(*1)VC
E2
EC
BRJ42
J/C
D
DBR 2
Y
1
2L
G
RG2+
G2±
NE+
NE± 123
E8
19
E6
29
E6
21
E6
20
E6 E
EEJ42 J/C
± D

Page 508 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual B17445
Wire Harness Side:
Camshaft Position Sensor
A23559
2 V / DIV
GND
Crank Angle
120°120° 180°
180°
60°60°
200 ms /DIV
B17414
E6ECM Connector
G2+
G2±
DI±306
± DIAGNOSTICSENGINE
500 Author

Page 509 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual B17414
E6ECM Connector
G2+
G2±
B17445
Wire Harness Side:
Camshaft Position Sensor C1
BR3795OK NGClearance
± DIAGNOSTICSENGINE
DI±307
501 Author: Date:
2005 SEQUOIA (RM1146U)
3 Check for open an

Page 510 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual DI±308
± DIAGNOSTICSENGINE
502 Author: Date:
2005 SEQUOIA (RM1146U)
5 Inspect signal plate tooth of LH camshaft timing pulley.
NG Replace LH camshaft timing pulley.
OK
Replace camshaft position

Page 511 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual ± DIAGNOSTICSENGINE
DI±309
503 Author: Date:
2005 SEQUOIA (RM1146U)
DTC P1440 Secondary Air Injection System Control
Valve Circuit Bank 1
DTC P1443 Secondary Air Injection System Control
Valve C

Page 512 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual DI±310
± DIAGNOSTICSENGINE
504 Author: Date:
2005 SEQUOIA (RM1146U)
TYPICAL ENABLING CONDITIONS
ItSpecificationItemMinimumMaximum
The monitor will run whenever these
DTCs are not presentSee page

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