2001 TOYOTA HIGHLANDER o2 sensor
[x] Cancel search: o2 sensorPage 2102 of 2572
- DIAGNOSTICSSFI SYSTEM (2AZ-FE)
05-49
239 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)P0118
(05-95)
Engine Coolant Temperature Cir-
cuit High InputSame as DTC No. P0115
P0120
(05-102)Throttle/Pedal Position Sensor/
Switch ºAº CircuitThrottle position sensor (built-in throttle body)
ECM
P0121
(05-1 11)Throttle/Pedal Position Sensor/
Switch ºAº Circuit Range/Perfor-
mance Problem
Throttle body assy (Throttle position sensor)
P0122
(05-102)Throttle/Pedal Position Sensor/
Switch ºAº Circuit Low Input
Throttle position sensor (built-in throttle body)
Short in VTA1 circuit
Open in VC circuit
ECM
P0123
(05-102)Throttle/Pedal Position Sensor/
Switch ºAº Circuit High Input
Throttle position sensor (built-in throttle body)
Open in VTA1 circuit
Open in E2 circuit
VC and VTA1 circuits are short-circuited
ECM
P0125
(05-1 13)Insufficient Coolant Temperature
for Closed Loop Fuel ControlCooling system
Engine coolant temperature sensor
Thermostat
P0128
(05-1 15)Coolant Thermostat (Coolant
Temperature Below Thermostat
Regulating Temperature)Thermostat
Cooling system
Engine coolant temperature sensor
ECM
P0136
(05-1 18)Oxygen Sensor Circuit Malfunc-
tion (Bank 1 Sensor 2)
Open or short in heated oxygen sensor (bank 1 sensor 2) cir-
cuit
Heated oxygen sensor (bank 1 sensor 2)
Heated oxygen sensor heater (bank 1 sensor 2)
A/F sensor
A/F sensor heater
EFI relay
P0137
(05-1 18)Oxygen Sensor Circuit Low Volt-
age (Bank 1 Sensor 2)Open or short in heated oxygen sensor circuit (sensor to ECM)
Open or short in heated oxygen sensor internal circuit
P0138
(05-1 18)Oxygen Sensor Circuit High Volt-
age (Bank 1 Sensor 2)
Short in heated oxygen sensor (bank 1 sensor 2) circuit
Short in heated oxygen sensor (bank 1 sensor 2) internal cir-
cuit
ECM internal circuit malfunction
P0171
(05-132)System too Lean (Bank 1)
Air induction system
Injector blockage
Mass air flow meter
Engine coolant temperature sensor
Fuel pressure
Gas leakage in exhaust system
Open or short in A/F sensor circuit
A/F sensor
A/F sensor heater
EFI relay
Open or short in A/F sensor heater and EFI relay circuits
PCV hose connection
PCV hose
P0172
(05-132)System too Rich (Bank 1)
Injector leak, blockage
Mass air flow meter
Engine coolant temperature sensor
Ignition system
Fuel pressure
Gas leakage in exhaust system
Open or short in A/F sensor circuit
A/F sensor
A/F sensor heater
Open or short in A/F sensor heater and EFI relay circuits
EFI relay
Page 2103 of 2572
05-50
- DIAGNOSTICSSFI SYSTEM (2AZ-FE)
240 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)P0220
(05-102)
Throttle/Pedal Position Sensor/
Switch ºBº CircuitThrottle position sensor (built-in throttle body)
ECM
P0222
(05-102)Throttle/Pedal Position Sensor/
Switch ºBº Circuit Low Input
Throttle position sensor (built-in throttle body)
Short in VTA2 circuit
Open in VC circuit
ECM
P0223
(05-102)Throttle/Pedal Position Sensor/
Switch ºBº Circuit High Input
Throttle position sensor (built-in throttle body)
Open in VTA2 circuit
Open in E2 circuit
VC and VTA2 circuits are short-circuited
ECM
P0300
(05-146)Random/Multiple Cylinder Misfire
Detected
Open or short in engine wire
Connector connection
Vacuum hose connection
Ignition system
Injector
Fuel pressure
Mass air flow meter
Engine coolant temp. sensor
Compression pressure
Valve clearance
Valve timing
PCV hose connection
PCV hose
ECM
*2
P0301
(05-146)Cylinder 1 Misfire DetectedSame as DTC No. P0300*2
P0302
(05-146)Cylinder 2 Misfire DetectedSame as DTC No. P0300*2
P0303
(05-146)Cylinder 3 Misfire DetectedSame as DTC No. P0300*2
P0304
(05-146)Cylinder 4 Misfire DetectedSame as DTC No. P0300*2
P0325
(05-161)Knock Sensor 1 Circuit (Bank 1
or Single Sensor)Open or short in knock sensor circuit
Knock sensor (under-torqued or loose)
ECM
P0327
(05-161)Knock Sensor 1 Circuit Low Input
(Bank 1 or Single Sensor)Short in knock sensor circuit
Knock sensor
ECM
P0328
(05-161)Knock Sensor 1 Circuit High In-
put (Bank 1 or Single Sensor)Open in knock sensor circuit
Knock sensor
ECM
P0335
(05-166)Crankshaft Position Sensor ºAº
Circuit
Open or short in crankshaft position sensor circuit
Crankshaft position sensor
Signal plate (Crankshaft position sensor plate No. 1)
ECM
P0339
(05-166)Crankshaft Position Sensor ºAº
Circuit IntermittentSame as DTC No. P0335-
P0340
(05-170)Camshaft Position Sensor ºAº
Circuit (Bank 1 or Single Sensor)
Open or short in camshaft position sensor circuit
Camshaft position sensor
Camshaft timing gear
Timing chain has a jumped tooth
ECM
P0341
(05-170)Camshaft Position Sensor ºAº
Circuit Range/Performance
(Bank 1 or Single Sensor)
Same as DTC No. P0340
Page 2104 of 2572
- DIAGNOSTICSSFI SYSTEM (2AZ-FE)
05-51
241 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)P0351
(05-174)
Ignition Coil ºAº Primary/Second-
ary Circuit
Ignition system
Open or short in IGF and IGT1 to 4 circuits from ignition coil
with igniter assy to ECM
No.1 - 4 ignition coil assy
ECM
P0352
(05-174)Ignition Coil ºBº Primary/Second-
ary CircuitSame as DTC No. P0351
P0353
(05-174)Ignition Coil ºCº Primary/Sec-
ondary CircuitSame as DTC No. P0351
P0354
(05-174)Ignition Coil ºDº Primary/Sec-
ondary CircuitSame as DTC No. P0351
P0420
(05-184)Catalyst System Efficiency Be-
low Threshold (Bank 1)
Gas leakage on exhaust system
A/F sensor
Heated oxygen sensor
Exhaust manifold converter (Three way catalytic converter)
P043E
(05-190)Evaporative Emission System
Reference Orifice Clog Up
Pump module
Connector/Wire harness (Pump module - ECM)
ECM
Leakage from EVAP system
P043F
(05-190)Evaporative Emission System
Reference Orifice High Fow
Pump module
Connector/Wire harness (Pump module - ECM)
ECM
Leakage from EVAP system
P0441
(05-196)Evaporative Emission Control
System Incorrent Purge Flow
Purge VSV
Connector/wire harness (Purge VSV - ECM)
ECM
Pump module
Leakage from EVAP system
Leakage from EVAP line (Purge VSV - Intake manifold)
P0450
(05-202)Evaporative Emission Control
System Pressure sensor/SwitchPump module
ECM
P0451
(05-202)Evaporative Emission Control
System Pressure sensor Range/
PerformancePump module
Connector/Wire harness (Pump module - ECM)
ECM
P0452
(05-202)Evaporative Emission Control
System Pressure sensor/Switch
Low InputPump module
Connector/Wire harness (Pump module to ECM)
ECM
P0453
(05-202)Evaporative Emission Control
System Pressure sensor/Switch
High InputPump module
Connector/Wire harness (Pump module to ECM)
ECM
P0455
(05-21 1)Evaporative Emission Control
System Leak Detected (gross
leak)
Fuel tank cap (loose)
Leakage from EVAP line (Canister - Fuel tank)
Leakage from EVAP line (Purge VSV - Canister)
Pump module
Leakage from fuel tank
Leakage from canister
P0456
(05-21 1)Evaporative Emission Control
System Leak Detected (small
leak)
Same above
P0500
(05-216)Vehicle Speed Sensor ºAº
Combination meter
Open or short in speed sensor circuit
Vehicle speed sensor
ECM
Skid control ECU
P0503
(05-216)Vehicle Speed Sensor ºAº Inter-
mittent/Erratic/HighSame as DTC No. P0500-
P0504
(05-219)Brake Switch Correlation
Short in stop lamp switch signal circuit
STOP fuse
Stop lamp switch
ECM
-
Page 2105 of 2572
05-52
- DIAGNOSTICSSFI SYSTEM (2AZ-FE)
242 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)P0505
(05-226)
Idle Control System
Electronic throttle control system
Air induction system
PCV hose connection
ECM
P0560
(05-229)System VoltageOpen in back-up power source circuit
ECM
P0604
(05-233)Internal Control Module Random
Access Memory (RAM) ErrorECM
P0606
(05-233)ECM/PCM ProcessorSame as DTC No. P0604
P0607
(05-233)Control Module PerformanceSame as DTC No. P0604
P0617
(05-235)Starter Relay Circuit High
Short in PNP switch
PNP switch
Ignition switch
ECM
P0630
(05-241)VIN not Programmed or Mis-
match - ECM/PCMECM
P0657
(05-233)Actuator Supply Voltage Circuit /
OpenSame as DTC No. P0604
P0705
(05-242)Transmission Range Sensor Cir-
cuit Malfunction (PRNDL Input)Short in PNP switch circuit
PNP switch
ECM
P0710
(05-928)Transmission Fluid Temperature
Sensor ºAº circuitElectronic controlled automatic transmission (ECT)
P0711
(05-933)Transmission Fluid Temperature
Sensor ºAº PerformanceElectronic controlled automatic transmission (ECT)
P0712
(05-928)Transmission Fluid Temperature
Sensor ºAº Circuit Low InputElectronic controlled automatic transmission (ECT)
P0713
(05-928)Transmission Fluid Temperature
Sensor ºAº Circuit High InputElectronic controlled automatic transmission (ECT)
P0717
(05-937)Input/Turbine Speed Sensor ºAº
Circuit No SignalElectronic controlled automatic transmission (ECT)
P0724
(05-940)Brake Switch ºBº Circuit HighElectronic controlled automatic transmission (ECT)
P0741
(05-944)Torque Converter Clutch Circuit
Performance or Stuck OffElectronic controlled automatic transmission (ECT)
P0746
(05-949)Pressure Control Solenoid ºAº
Performance (Shift Solenoid
Valve SL1)
Electronic controlled automatic transmission (ECT)
P0748
(05-953)Pressure Control Solenoid ºAº
Electrical (Shift Solenoid Valve
SL1)
Electronic controlled automatic transmission (ECT)
P0766
(05-949)Shift Solenoid ºDº Performance
(Shift Solenoid Valve S4)Electronic controlled automatic transmission (ECT)
P0776
(05-949)Pressure Control Solenoid ºBº
Performance (Shift Solenoid
Valve SL2)
Electronic controlled automatic transmission (ECT)
P0778
(05-953)Pressure Control Solenoid ºBº
Electrical (Shift Solenoid Valve
SL2)
Electronic controlled automatic transmission (ECT)
P0793
(05-967)Intermediate Shaft Speed Sensor
ºAº Circuit No SignalElectronic controlled automatic transmission (ECT)
P0982
(05-953)Shift Solenoid ºDº Control LowElectronic controlled automatic transmission (ECT)
P0983
(05-953)Shift Solenoid ºDº Control HighElectronic controlled automatic transmission (ECT)
Page 2106 of 2572
- DIAGNOSTICSSFI SYSTEM (2AZ-FE)
05-53
243 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)P2102
(05-243)
Throttle Actuator Control Motor
Circuit LowOpen in throttle actuator circuit
Throttle actuator
ECM
P2103
(05-243)Throttle Actuator Control Motor
Circuit High
Short in throttle actuator circuit
Throttle actuator
Throttle valve
Throttle body assy
ECM
P2111
(05-247)Throttle Actuator Control System
- Stuck Open
Throttle actuator circuit
Throttle actuator
Throttle body
Throttle valve
P2112
(05-247)Throttle Actuator Control System
- Stuck ClosedSame as DTC No. P2111
P2118
(05-250)Actuator Control Motor Current
Range/PerformanceOpen in ETCS power source circuit
ECM
P2119
(05-255)Throttle Actuator Control Throttle
Body Range/PerformanceElectronic throttle control system
ECM
P2120
(05-257)Throttle/Pedal Position Sensor/
Switch ºDº Circuit
Accelerator pedal position sensor
Open in VCP1 circuit
VPA circuit open or ground short
ECM
P2121
(05-265)Throttle/Pedal Position Sensor/
Switch ºDº Circuit Range/Perfor-
manceOpen or short in Accelerator pedal position sensor circuit
Accelerator pedal position sensor
ECM
P2122
(05-257)Throttle/Pedal Position Sensor/
Switch ºDº Circuit Low Input
Accelerator pedal position sensor
Open in VCP1 circuit
VPA circuit open or ground short
ECM
P2123
(05-257)Throttle/Pedal Position Sensor/
Switch ºDº Circuit High InputAccelerator pedal position sensor
Open in EPA circuit
ECM
P2125
(05-257)Throttle/Pedal Position Sensor/
Switch ºEº CircuitAccelerator pedal position sensor
ECM
P2127
(05-257)Throttle/Pedal Position Sensor/
Switch ºEº Circuit Low Input
Accelerator pedal position sensor
Open in VCP2 circuit
VPA2 circuit open or ground short
ECM
P2128
(05-257)Throttle/Pedal Position Sensor/
Switch ºEº Circuit High InputAccelerator pedal position sensor
Open in EPA2 circuit
ECM
P2135
(05-102)Throttle Pedal Position Sensor/
Switch ºAº/ºBº Voltage Correla-
tion
Same as DTC No. P0120
P2138
(05-257)Throttle Pedal Position Sensor/
Switch ºDº/ºEº Voltage Correla-
tionVPA and VPA2 circuit are short circuited
Accelerator pedal position sensor
ECM
P2195*3
(05-269)
Oxygen (A/F) Sensor Signal
Stuck Lean (Bank 1 Sensor 1)
Open or short in A/F sensor circuit
A/F sensor
A/F sensor heater
EFI relay
Open or short in A/F sensor heater and EFI relay circuits
Air induction system
Fuel pressure
Injector
ECM
P2196*3
(05-269)
Oxygen (A/F) Sensor Signal
Stuck Rich (Bank 1 Sensor 1)Same as DTC No. P2195
Page 2107 of 2572
05-54
- DIAGNOSTICSSFI SYSTEM (2AZ-FE)
244 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)P2238*
3
(05-282)
Oxygen Sensor Pumping Current
Circuit Low (for A/F sensor)
(Bank 1 Sensor 1)
Open or short in A/F sensor circuit
A/F sensor
A/F sensor heater
EFI relay
Open or short in A/F sensor heater and EFI relay circuits
ECM
P2239*3
(05-282)
Oxygen Sensor Pumping Current
Circuit High (for A/F sensor)
(Bank 1 Sensor 1)
Same as DTC No. P2238
P2252*3
(05-282)
Oxygen Sensor Reference
Ground Circuit Low (for A/F sen-
sor) (Bank 1 Sensor 1)
Same as DTC No. P2238
P2253*3
(05-282)
Oxygen Sensor Reference
Ground Circuit High (for A/F sen-
sor) (Bank 1 Sensor 1)
Same as DTC No. P2238
P2401
(05-288)Evaporative Emission System
Leak Detection Pump Control
Circuit LowPump module
Connector/Wire harness (Pump module - ECM)
ECM
Leakage from EVAP system
P2402
(05-288)Evaporative Emission System
Leak Detection Pump Control
Circuit HighPump module
Connector/Wire harness (Pump module - ECM)
ECM
P2419
(05-294)Evaporative Emission System
Switching Valve Control Circuit
LowPump module
Connector/Wire harness (Pump module - ECM)
ECM
P2420
(05-294)Evaporative Emission System
Switching Valve Control Circuit
HighPump module
Connector/Wire harness (Pump module - ECM)
ECM
Leakage from EVAP system
P2610
(05-300)ECM/PCM Internal Engine Off
Timer PerformanceECM
P2716
(05-974)Pressure Control Solenoid ºDº
ElectricalElectronic controlled automatic transmission (ECT)
P2A00
(05-302)A/F Sensor Circuit Slow Re-
sponse (Bank 1 Sensor 1)
Open or short in A/F sensor circuit
A/F sensor
A/F sensor heater
EFI relay
Open or short in A/F sensor heater and EFI relay circuits
Air induction system
Fuel pressure
Injector
ECM
P2769
(05-978)DSL Solenoid Circuit LowElectronic controlled automatic transmission (ECT)
P2770
(05-978)DSL Solenoid Circuit HighElectronic controlled automatic transmission (ECT)
B2799
(05-2010)Engine Immobilizer System Mal-
functionImmobilizer system-
HINT:
*
1: MIL illuminates
*
2: MIL illuminates or flashes continuously
*
3: Although the title (DTC description) says ºoxygen sensorº, this DTC is related to the ºA/F sensorº.
Page 2150 of 2572
2005 HIGHLANDER (EWD592U)
19
E
RELAY
Basically, an electrically operated
switch which may be normally
closed (1) or open (2).
Current flow through a small coil
creates a magnetic field which either
opens or closes an attached switch.
1. NORMALLY
CLOSED
2. NORMALLY
OPEN
SWITCH, MANUAL
Opens and closes
iitth b
SPEAKER
An electromechanical device which
creates sound waves from current
flow.
RELAY, DOUBLE THROW
A relay which passes current
through one set of contacts or the
other.
circuits, thereby
stopping (1) or
allowing (2) current
flow.1. NORMALLY
OPEN
2. NORMALLY
CLOSED
RESISTOR
An electrical component with a fixed
resistance, placed in a circuit to
reduce voltage to a specific value.SWITCH, DOUBLE THROW
A switch which continuously passes
current through one set of contacts
or the other.
RESISTOR, TAPPED
A resistor which supplies two or
more different non adjustable
resistance values.SWITCH, IGNITION
A key operated switch with several
positions which allows various
circuits, particularly the primary
ignition circuit, to become
operational.
RESISTOR, VARIABLE or RHEOSTAT
A controllable resistor with a variable
rate of resistance.
Also called a potentiometer or
rheostat.
SENSOR (Thermistor)
A resistor which varies its resistance
with temperature.SWITCH, WIPER PARK
Automatically returns wipers to the
stop position when the wiper switch
is turned off.
(Reed Switch Type)
SENSOR, SPEED
Uses magnetic impulses to open
and close a switch to create a signal
for activation of other components.TRANSISTOR
A solidstate device typically used as
an electronic relay; stops or passes
current depending on the voltage
applied at ºbaseº.
SHORT PIN
Used to provide an unbroken
connection within a junction block.WIRES
Wires are always drawn as
straight lines on wiring
diagrams.
Crossed wires (1) without a
black dot at the junction are
tj i d
(1) NOT
CONNECTED
SOLENOID
An electromagnetic coil which forms
a magnetic field when current flows,
to move a plunger, etc.
j
not joined;
crossed wires (2) with a
black dot or octagonal ( )
mark at the junction are
spliced (joined)
connections.
(2) SPLICED
Page 2151 of 2572
2005 HIGHLANDER (EWD592U)
314
I GROUND POINT
Brake Warning SW
Skid Control
ECU with
ActuatorFront Fog Light LH
Washer Level
Sensor
Front Turn Signal
Light RH
Headlight RH
(
Low Beam)
Headlight LH
(
Low Beam)
STARTER Relay
Pressur e SW
INVERTER Relay Engine Hood
Cour tesy SW
Front Turn Signal
Light LH
Headlight LH
(
Low Beam)
Front Fog Light
RHA
A W- B
W- BA
A
A
A
AW- B
W- B
W- B
W- B
W- B
EA EB
J 4
J 3
DRL NO. 3 RelayW- B
W- B(
*1)
(
*1)E12 3
3
W- B DRL NO. 4 RelayW- B
(
*1)
(
*1) 3
3
W- B
(
*1)
A
A
A
A
EHW- B W- B W- B W- B A
A
A
A
EG W- B
W- B
W- B
(
*1)
W- BJ 1 (
GND1)
J 2Front Parking
Light RH AW-B
Fro nt Parking
Light LHA W- BEFI Relay W- BRR DEF Relay W- BA/F Relay W- B
2
2A
2F7
4
A Water Temp. SW No. 1A W- B
W- B
A AW-B2G2FAN NO. 2 Relay W- B
W- B
(
GND2) W- B Skid Control
ECU with
Actuator
Radi ator Fan MotorW- BE11
W- B
(
*1)
2
2
2Front Parking Light
RH
Junction
ConnectorJunction
Connector
Junction
Connector Junction
Connector
Fro nt Parking
Light LH