2001 TOYOTA SEQUOIA Service Repair Manual

start stop button run flat rear entertainment headlights sat nav low beam

Page 265 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual ± DIAGNOSTICSENGINE
DI±71
265 Author: Date:
2005 SEQUOIA (RM1146U)P2401
(DI±410)
Evaporative Emission System
Leak Detection Pump Control
Circuit LowPump module
Connector/Wire harness (between

± DIAGNOSTICSENGINE
DI±71
265 Author: Date:
2005 SEQUOIA (RM1146U)P2401
(DI±410)
Evaporative Emission System
Leak Detection Pump Control
Circuit LowPump module
Connector/Wire harness (between pump module and ECM)
ECM

P2402
(DI±410)Evaporative Emission System
Leak Detection Pump Control
Circuit HighPump module
Connector/Wire harness (between pump module and ECM)
ECM

P2419
(DI±416)Evaporate Emission System
Switching Valve Control Circuit
LowPump module
Connector/Wire harness (between pump module and ECM)
ECM

P2420
(DI±416)Evaporate Emission System
Switching Valve Control Circuit
HighPump module
Connector/Wire harness (between pump module and ECM)
ECM

P2430
(DI±422)Secondary Air Injection System
Air Flow/Pressure Sensor Circuit
Bank 1
Pressure sensor
Open or short in pressure sensor circuit
Vacuum hose
Check valve
ECM

P2431
(DI±422)Secondary Air Injection System
Air Flow/Pressure Sensor Circuit
Range/Performance Bank 1
Pressure sensor
Open or short in pressure sensor circuit
Vacuum hose
Check valve
ECM

P2432
(DI±422)Secondary Air Injection System
Air Flow/Pressure Sensor Circuit
Low Bank 1
Pressure sensor
Open or short in pressure sensor circuit
Vacuum hose
Check valve
ECM

P2433
(DI±422)Secondary Air Injection System
Air Flow/Pressure Sensor Circuit
High Bank 1
Pressure sensor
Open or short in pressure sensor circuit
Vacuum hose
Check valve
ECM

P2440
(DI±314)Secondary Air Injection System
Switching Valve Stuck Open
Bank 1
Electromagnetic air switching valve
Air switching valve No.2 (Bank 1 and/or 2)
VSV for air injection system (Bank 1 and/or 2)
Air injection driver
Air injection driver circuit
ECM

P2441
(DI±330)Secondary Air Injection System
Switching Valve Stuck Close
Bank 1
Vacuum hoses (Throttle body ± VSVs for air injection control)
Electromagnetic air switching valve
Air injector pipe (Air switching valve No.2 ± exhaust manifold)
Air injection hose
Air switching valve No.2 (Bank 1 and/or 2)
VSV for air injection control (Bank 1 and/or 2)
Air injection driver
Air injection driver circuit
ECM

P2444
(DI±426)Secondary Air Injection System
Pump Stuck On Bank 1
Short in air pump circuit
Pressure sensor
Air pump assembly
Open or short in pressure sensor circuit
ECM

Page 266 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual DI±72
± DIAGNOSTICSENGINE
266 Author: Date:
2005 SEQUOIA (RM1146U)P2445
(DI±426)
Secondary Air Injection System
Pump Stuck On Bank 1
Air pump fuse
Vacuum hose
Air pump assembly
Open in air

Page 267 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual DID82±01
A20891
Mass Air Flow Sensor Crankshaft Position Sensor
Actual Valve TimingCorrection Target Valve Timing
Feedback
Duty Control ECM
Camshaft Timing
Oil Control
Valve (OCV)
Vehicle Speed Sig

Page 268 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual DI±74
± DIAGNOSTICSENGINE
268 Author: Date:
2005 SEQUOIA (RM1146U)
MONITOR DESCRIPTION
After the ECM sends the ºtargetº duty±cycle signal to the OCV (Oil Control Valve), the ECM monitors the

Page 269 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual A07621A09776
1
2L±W
P±LOC1+
OC1±
OC2+
OC2± 17
L±B
R±L 1
2E6 C13
OCV (Bank 1)
C14
OCV (Bank 2)ECM
16
15
14 E6
E6
E6
± DIAGNOSTICSENGINE
DI±75
269 Author: Date:
2005 SEQUOIA (RM1146U)
WIRING

Page 270 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual A31449A23511
Valve Battery ±
Battery +
DI±76
± DIAGNOSTICSENGINE
270 Author: Date:
2005 SEQUOIA (RM1146U)
1 Check OCV circuit.
PREPARATION:
(a) Connect the hand±held tester to the DLC3.
(b) S

Page 271 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual A02397
OCV Signal Waveform
1 msec./Division5 V/
Division
GND
(A) (A) (A)
B17414ECM ConnectorE6
OC1+
OC1±
OC2+OC2±
E1
± DIAGNOSTICSENGINE
DI±77
271 Author: Date:
2005 SEQUOIA (RM1146U)
3 Check

Page 272 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual A23673
Wire Harness Side
C13
OCV Connector C14
B17414ECM ConnectorE6
OC1+
OC1±
OC2+OC2±
E1
DI±78
± DIAGNOSTICSENGINE
272 Author: Date:
2005 SEQUOIA (RM1146U)
4 Check for open and short in harn

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