2001 TOYOTA SEQUOIA Service Repair Manual

Page 585 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual ± DIAGNOSTICSENGINE
DI±383
577 Author: Date:
2005 SEQUOIA   (RM1146U)
DTC P2195 Oxygen (A/F) Sensor Signal Stuck Lean
(Bank 1 Sensor 1)
DTC P2196 Oxygen (A/F) Sensor Signal Stuck Rich
(Bank 1 Sens

Page 586 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual A23473A±A Cross SectionAtmospheric AirSolid Electrolyte
(Zirconia Element)
Platinum 
Electrode Heater
Exhaust Gas
Cover Element
A
A
ECM Monitored
A/F Sensor Voltage
Air±Fuel Ratio Alumina
4.0
3.0
2.

Page 587 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual ± DIAGNOSTICSENGINE
DI±385
579 Author: Date:
2005 SEQUOIA   (RM1146U)DTC No.
DTC Detection ConditionsTrouble Areas
P2195
P2197While fuel±cut operation performing (during vehicle decelera-
tion),

Page 588 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual A23456
Air±fuel Ratio Sensor Current Monitor:
Fuel±cut
High Side Thresh
Low Side Thresh
3 sec. or more
Time t2
t1 3 sec.
Delay ON
OFF
Normal
Malfunction3 sec.
Delay3 sec.
Delay Sensor Current

Page 589 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual ± DIAGNOSTICSENGINE
DI±387
581 Author: Date:
2005 SEQUOIA   (RM1146U)
MONITOR STRATEGY
P2195A/F sensor (Bank 1) signal stuck leanP2195A/F sensor (Bank 1) current (high side)
P2196A/F sensor (Bank

Page 590 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual DI±388
± DIAGNOSTICSENGINE
582 Author: Date:
2005 SEQUOIA   (RM1146U) Atmospheric pressure/760 mmHg
0.75±
A/F sensor statusActivated
Continuous time of fuel±cut3 to 10 sec.
TYPICAL MALFUNCTION T

Page 591 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual A23547
2
A1A± MREL
HA2A
A1A+ECM
22
30 B±W
E4
E7
E7 E7
BR W±B
2EFI Relay
A39 A/F Sensor 
(Bank 2 Sensor 1)
J42 
J/C Engine Room R/B No. 2
W 114
F10
FL 
Block
Battery
ED(Shielded)8
EB 3
2HT
AF+ +B
B

Page 592 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual A23662
40 mph (64 km/h)
Idling
IG SW OFF ECT: 
75C (167F) or higher
Vehicle Speed
Warming up(d)(f)
10 minutes
or more(g)
10 seconds
or more4 seconds
or moreTime At Least 3 times
(h) (i)
(j) Accelera