2001 TOYOTA SEQUOIA O2 sensor

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Page 369 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual A19288
A/F Relay
A23659
Wire Harness Side:
HT
A38
Sensor 1A/F Sensor Connector
AF+
Front ViewAF±
+B A39
B17415
E7ECM Connector
HA1A
A1A+
A1A±
A2A+
A2A±HA2A
± DIAGNOSTICSENGINE
DI±175
369 Author:

Page 370 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual A23512
Reference (Bank 1 Sensor 1 System Drawing):
A/F Sensor A/F Relay
Heater
Sensor
A1A+ HA1A
Duty 
Control ECM
From 
Battery
A/F Heater 
Fuse
A1A±
To EFI Relay
DI±176
± DIAGNOSTICSENGINE
370 Aut

Page 373 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual A21043
Starter Relay EFI Relay
Circuit Opening 
Relay
Fuel Pump RelayMREL
FPRTr2
Tr1 EFI No.1
IGNECM
FC
NE Fuel Pump
Battery
StarterFuel Pump Resistor
AM2Ignition Switch
STA
Crankshaft Position 
Senso

Page 378 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual DI±184
± DIAGNOSTICSENGINE
378 Author: Date:
2005 SEQUOIA   (RM1146U)
DTC P0300 Random/Multiple  Cylinder Misfire Detected
DTC P0301 Cylinder 1 Misfire Detected
DTC P0302 Cylinder 2 Misfire Detect

Page 379 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual A20646
20 V
/Division Injector Signal Waveform
20 V
/Division
GND
100 msec./Division (Idling)(Magnification)
GND
1 msec./Division (Idling)
Injection duration
± DIAGNOSTICSENGINE
DI±185
379 Author:

Page 380 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual Crankshaft position sensor 
(36±2 teeth or 12 teeth) Camshaft position sensor
ECM
A20490
DI±186
± DIAGNOSTICSENGINE
380 Author: Date:
2005 SEQUOIA   (RM1146U)
MONITOR DESCRIPTION
The ECM illumina

Page 397 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual S01196S01699
30
20
10
5
3
02040 0.11
0.3
0.2 0.52
60 80 100 ±20
(±4) (104) (140) (176)(32) (68) (212)
A21042
Ohmmeter
Acceptable
TEMPERATURE C (F)
RESISTANCE KW
± DIAGNOSTICSENGINE
DI±203
397 Au

Page 398 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual DI±204
± DIAGNOSTICSENGINE
398 Author: Date:
2005 SEQUOIA   (RM1146U)
DTC P0325 Knock Sensor 1 Circuit (Bank 1 or Single
Sensor)
DTC P0327 Knock Sensor 1 Circuit Low Input (Bank 1 or
Single Sensor