2001 TOYOTA HIGHLANDER o2 sensor
[x] Cancel search: o2 sensorPage 2386 of 2572
7101E-06
- INSTRUMENT PANEL/METERCOMBINATION METER
71-1
3592 Author: Date:
COMBINATION METER
PROBLEM SYMPTOMS TABLE
Warning Lights:
SymptomSuspect AreaSee page
Check Engine warning light does not come on.
7. ECM
8. Wire Harness or Connector
9. Combination Meter Assy05-5
05-366
-
71-18
Discharge warning light does not come on.
1. ECM
2. Wire Harness or Connector
3. Combination Meter Assy05-5
05-366
-
71-18
Brake warning light does not come on.
1. Skid control ECU
2. Wire Harness or Connector
3. Combination Meter Assy05-761
-
71-18
ABS warning light does not come on.
1. ABS ECU
2. Wire Harness or Connector
3. Combination Meter Assy05-761
-
71-18
SRS warning light does not come on.
1. Airbag Sensor Assy Center
2. Wire Harness or Connector
3. Combination Meter Assy05-1200
-
71-18
Open Door warning light does not come on.
1. Refer to troubleshooting
2. Wire Harness or Connector
3. Combination Meter Assy05-1601
-
71-18
Fuel Level warning light does not come on.
1. Refer to troubleshooting
2. Wire Harness or Connector
3. Combination Meter Assy05-1893
-
71-18
Low Oil Pressure warning light does not come on.
1. Low Oil Pressure Warning Switch
2. Wire Harness or Connector
3. Combination Meter Assy71-3
-
71-18
Driver's seat belt warning light does not come on.
1. Refer to troubleshooting
2. Wire Harness or Connector
3. Combination Meter Assy05-1898
-
71-18
ºOIL LEVELº warning light does not come on.
1. Low Oil Level Sensor
2. Wire Harness or Connector
3. ECM
4. Combination Meter Assy05-5
05-366
-
05-5
05-366
71-18
ºTIRE AIR PRESSº warning light does not come on.
1. Wire Harness or Connector
2. Skid Control ECU
3. Combination Meter Assy-
05-761
71-18
Indicator Lights:
SymptomSuspect AreaSee page
Turn indicator light does not come on.
1. Turn Signal and Hazard Warning System
2. Wire Harness or Connector
3. Combination Meter Assy05-1533
-
71-18
High Beam indicator light does not come on.
1. Headlight Dimmer Switch
2. Wire Harness or Connector
3. Combination Meter Assy05-1533
-
71-18
Washer level indicator light does not come on.
1. Washer Level Warning Switch
2. Wire Harness or Connector
3. Combination Meter Assy-
-
71-18
Page 2467 of 2572
120E5-01
A88556
Carbon Filter
Charcoal Canister Filter
VSV for CCV ECM
Charcoal Canister Refueling Valve
Restrictor Passage Vapor Pressure Sensor
Fuel Tank
Purge Line
Fresh Air Line EVAP
Service Port Purge ValveAir Cleaner 12-16
- EMISSION CONTROLEMISSION CONTROL SYSTEM (3MZ-FE)
2474 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
SYSTEM DIAGRAM
The emission control system is determined by the ECM based on signals from various sensors.
Page 2475 of 2572
051ZJ-16
A53766
E7E8E9E6E5
05-32
- DIAGNOSTICSSFI SYSTEM (2AZ-FE)
222 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
TERMINALS OF ECM
HINT:
Each ECM terminal's standard voltage is shown in the table below.
In the table, first follow the information under ºConditionº. Next look under ºSymbols (Terminal No.)º for the
terminals to be inspected. The standard voltage between the terminals is shown under ºSpecific Conditionº.
Use the illustration above as a reference for the ECM terminals.
Symbols (Terminal No.)Wiring ColorTerminal DescriptionConditionSpecified Condition
BATT (E5-3) - E1 (E9-1)BR - BR
Battery (for measuring
battery voltage and for
ECM memory)
Always9 to 14 V
+BM (E6-6) - E1 (E9-1)W - BRPower source of throttle
motorAlways9 to 14 V
IGSW (E5-9) - E1 (E9-1)P - BRIgnition switchIgnition switch ON9 to 14 V
+B (E5-1) - E1 (E9-1)W- BRPower source of ECMIgnition switch ON9 to 14 V
+B2 (E5-2) - E1 (E9-1)W- BRPower source of ECMIgnition switch ON9 to 14 V
OC1+ (E9-16) - OC1- (E9-15)G-W - G-RCamshaft timing oil con-
trol valve (OCV)Ignition switch ONPulse generation
(see page 05-55)
MREL (E5-8) - E1 (E9-1)B - BREFI relayIgnition switch ON9 to 14 V
VC (E7-18) - E2 (E7-28)Y - BRPower source of sensor
(specific voltage)Ignition switch ON4.5 to 5.5 V
VG (E7-30) - EVG (E7-29)R - L-WMass air flow meterIdling, shift lever position P or N
position, A/C switch OFF0.5 to 3.0 V
THA (E7-20) - E2 (E7-28)L-B - BRIntake air temperature
sensorIdling, intake air temp. 20°C (68°F)0.5 to 3.4 V
THW (E7-19) - E2 (E7-28)G-B - BREngine coolant tempera-
ture sensorIdling, engine coolant temp. 80°C
(176°F)0.2 to 1.0 V
VTA1 (E7-21) - E2 (E7-28)B-W - BRThrottle position sensor
(for engine control)Ignition switch ON, accelerator ped-
al released0.3 to 1.0 V
VTA1 (E7-21) - E2 (E7-28)B-W - BRThrottle position sensor
(for engine control)Ignition switch ON, accelerator ped-
al depressed3.2 to 4.9 V
VTA2 (E7-31) - E2 (E7-28)B-R - BR
Throttle position sensor
(for sensor malfunction
detection)Ignition switch ON, accelerator ped-
al released2.1 to 3.1 V
VTA2 (E7-31) - E2 (E7-28)B-R - BR
Throttle position sensor
(for sensor malfunction
detection)Ignition switch ON, accelerator ped-
al depressed4.5 to 5.5 V
VPA (E5-22) - EPA (E5-28)B - R
Accelerator pedal position
sensor (for engine con-
trol)Ignition switch ON, accelerator ped-
al released0.5 to 1.1 V
VPA (E5-22) - EPA (E5-28)B - R
Accelerator pedal position
sensor (for engine con-
trol)Ignition switch ON, accelerator ped-
al depressed2.6 to 4.5 V
VPA2 (E5-23) - EPA2 (E5-29)W - BR
Accelerator pedal position
sensor (for sensor mal-
function detection)Ignition switch ON, accelerator ped-
al released1.2 to 2.0 V
Page 2476 of 2572
- DIAGNOSTICSSFI SYSTEM (2AZ-FE)
05-33
223 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)Symbols (Terminal No.)Specified Condition Condition Terminal Description Wiring Color
VPA2 (E5-23) - EPA2 (E5-29)W - BR
Accelerator pedal position
sensor (for sensor mal-
function detection)Ignition switch ON, accelerator ped-
al depressed3.4 to 5.3 V
VCPA (E5-26) - EPA (E5-28)G - R
Power source of acceler-
ator pedal position sensor
(for VPA)
Ignition switch ON4.5 to 5.5 V
VCP2 (E5-27) - EPA2 (E5-29)L - BR
Power source of acceler-
ator pedal position sensor
(for VPA2)
Ignition switch ON4.5 to 5.5 V
HA1A (E8-5) - E04 (E8-7)B-W - W-BA/F sensor heaterIdlingBelow 3.0 V
HA1A (E8-5) - E04 (E8-7)B-W - W-BA/F sensor heaterIgnition switch ON9 to 14 V
A1A+ (E8-23) - E1 (E9-1)BR - BRA/F sensorIgnition switch ON3.0 to 3.6 V
A1A- (E8-31) - E1 (E9-1)Y - BRA/F sensorIgnition switch ON2.7 to 3.3 V
HT1B (E8-21) - E1 (E9-1)R-Y -BRHeated oxygen sensor
heaterIdlingBelow 3.0 V
HT1B (E8-21) - E1 (E9-1)R-Y -BRHeated oxygen sensor
heaterIIgnition switch ON9 to 14 V
OX1B (E8-29) - O1B (E8-2)G - BRHeated oxygen sensorMaintain engine speed at 2,500 rpm
for 2 minutes after warming upPulse generation
#1 (E7-1) - E01 (E7-7)
#2 (E7-2) - E01 (E7-7)L - W-B
Y - W-B
InjectorIIgnition s itch ON9to14V#2 (E7 2) E01 (E7 7)
#3 (E7-3) - E01 (E7-7)
#4 (E7-4) - E01 (E7-7)
Y WB
B - W-B
W - W-BInjectorIIgnition switch ON9 to 14 V
#1 (E7-1) - E01 (E7-7)
#2 (E7-2) - E01 (E7-7)
#3 (E7-3) - E01 (E7-7)
#4 (E7-4) - E01 (E7-7)L - W-B
Y - W-B
B - W-B
W - W-B
InjectorIdlingPulse generation
(see page 05-146)
KNK1 (E8-1) - FKNK1 (E8-28)B - WKnock sensorMaintain engine speed at 4,000 rpm
after warming upPulse generation
(see page 05-161)
G2+ (E9-27) - NE- (E9-24)Y - GCamshaft position sensorIdlingPulse generation
(see page 05-166)
NE+ (E9-25) - NE- (E9-24)R - GCrankshaft position sen-
sorIdlingPulse generation
(see page 05-166)
IGT1 (E7-8) - E1 (E9-1)
IGT2 (E7-9) - E1 (E9-1)
IGT3 (E7-10) - E1 (E9-1)
IGT4 (E7-11) - E1 (E9-1)R-W - BR
P - BR
Y-B - BR
L-Y - BR
Ignition coil with igniter
(ignition signal)IdlingPulse generation
(see page 05-174)
IGF1 (E7-24) - E1 (E9-1)W-R - BR
Ignition coil with igniter
(ignition confirmation sig-
nal)
IIgnition switch ON4.5 to 5.5 V
IGF1 (E7-24) - E1 (E9-1)W-R - BR
Ignition coil with igniter
(ignition confirmation sig-
nal)
IdlingPulse generation
(see page 05-174)
PRG (E7-34) - E1 (E9-1)G - BRPurge valveIgnition switch ON9 to 14 V
VPMP (E7-27) - E1 (E9-1)Y-G - BRVent valve
(Build in pump module)Ignition switch ON9 to 14 V
MPMP (E5-4) - E1 (E9-1)LG - BRVacuum pump
(Build in pump module)Vacuum pump OFF0 to 3 V
MPMP (E5-4) - E1 (E9-1)LG - BRVacuum pump
(Build in pump module)Vacuum pump ON9 to 14 V
PPMP (E5-21) - E2 (E7-28)L - BRPressure sensor
(Build in pump module)Ignition switch ON3 to 3.6 V
SPD (E6-17) - E1 (E9-1)Y - BRSpeed signal from com-
bination meterIgnition switch ON, rotate driving
wheel slowlyPulse generation
(see page 05-216)
Page 2478 of 2572
05CD1-12
F45080
S27
05-784
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
974 Author: Date:
TERMINALS OF ECU
SKID CONTROL ECU
Symbols (Terminals No.)Wiring ColorTerminal DescriptionConditionSpecified Condition
BM (S27-2) - GND (Y1-1)W-L - W-BMotor relay test inputIG switch ON, pump motor running10 to 14 V
FR+ (S27-3) - FR- (S27-17)R-Y - LGFront RH wheel speed
signal inputIG switch ON, slowly turn right front
wheelAC generation
FSW+ (S27-7) - GND1
(S27-32)G-W - W-BFSW switch inputIG switch ON, brake pedal released2 to 4 V
FL+ (S27-18) - FL- (S27-4)O - PFront LH wheel speed
signal inputIG switch ON, slowly turn left front
wheelAC generation
RR+ (S27-5) - RR- (S27-19)Y - BRRear RH wheel speed
signal inputIG switch ON, slowly turn right rear
wheelAC generation
RL+ (S27-20) - RL- (S27-6)Y-G - GRear LH wheel speed sig-
nal inputIG switch ON, slowly turn left rear
wheelAC generation
TRC+ (S27-8) - TRC-
(S27-22)G-B - Y-BECM communication out-
putIG switch ONPulse generation
ENG+ (S27-9) - ENG-
(S27-23)W-L - W-GECM communication inputIG switch ONPulse generation
NEO (S27-10) - GND1
(S27-32)V - W-BEngine rpm signal inputEngine idlingPulse generation
CANH (S27-11) - CANL
(S27-25)B - WCAN communication lineIG switch OFF54 to 67 W
D/G (S27-13) - GND1
(S27-32)GR-B - W-BDiagnosis tester commu-
nication lineIG switch ON10 to 14 V
SP1 (S27-12) - GND1
(S27-32)BR-R - W-BSpeed signal outputVehicle drives at about
20 km/h (12 mph)Pulse generation
MRF (S27-14) - R+ (S27-45)G-R - B-OFail safe motor relay out-
putIG switch ON10 to 14 V
MR (S27-15) - R+ (S27-45)LG - B-OMotor relay outputIG switch ON, pump motor running10 to 14 V
+BS (S27-31) - GND1
(S27-32)B - W-BSolenoid relay power sup-
plyAlways10 to 14 V
TS (S27-24) - GND1 (S27-32)P-B - W-BSensor check inputIG switch ON10 to 14 V
STP (S27-27) - GND1GY WBSt li ht it h i t
Stop light switch ON (Brake pedal
pushed)8 to 14 VSTP (S27 27) GND1
(S27-32)G-Y - W-BStop light switch inputStop light switch OFF (Brake pedal
released)Below 1.5 V
Page 2493 of 2572
F46320
Passenger Side J/B
D3 Data Link Connector 3
Skid Control ECU with Actuator
W-B
4L
4C
4N76
1
W-B12 424
S27
CG TS W-B
IC4TS
ICP-B 8
W
C52361
TS
CGDLC3
D3
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
05-873
1063 Author: Date:
TS AND CG TERMINAL CIRCUIT
CIRCUIT DESCRIPTION
In the sensor check mode, a malfunction of the speed sensor that cannot be detected when the vehicle is
stopped is detected while driving.
Transition to the sensor check mode can be performed by connecting terminals TS and CG of the DLC3 and
turning the ignition switch from off to the ON position.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 INSPECT DLC3 TERMINAL VOLTAGE(TS TERMINAL)
(a) Turn the ignition switch to the ON position.
(b) Measure the voltage according to the value(s) in the table
below.
Standard:
Tester ConnectionSpecified Condition
D3-12 (TS) - D3-4 (CG)10 to 14 V
NG Go to step 3
OK
05F1Y-08
Page 2536 of 2572
141P5-01
SST
A36541
A94204
Timing Marks
Groove
Timing Marks
A53043
- ENGINE MECHANICALPARTIAL ENGINE ASSY (2AZ-FE)
14-41
2534 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
OVERHAUL
1. REMOVE OIL FILTER SUB-ASSY
(a) Using SST, remove the oil filter.
SST 09228-06501
2. REMOVE OIL FILTER UNION
(a) Using a 12 mm hexagon wrench, remove the union.
3. REMOVE OIL FILLER CAP SUB-ASSY
4. REMOVE VENTILATION VALVE SUB-ASSY
5. REMOVE SPARK PLUG
6. REMOVE CYLINDER HEAD COVER SUB-ASSY
(a) Remove the 8 bolts, 2 nuts, and cylinder head cover.
7. REMOVE CYLINDER HEAD COVER GASKET
8. REMOVE CRANKSHAFT POSITION SENSOR
9. REMOVE CRANKSHAFT PULLEY
(a) Turn the crankshaft pulley and align its groove with timing
mark 0 of the timing chain cover.
(b) Check that the timing marks of the camshaft timing
sprockets are aligned with the timing marks of the No. 1
bearing cap, as shown in the illustration.
Page 2539 of 2572
A32626
90
Groove
A52508
Groove
A52509
14-44
- ENGINE MECHANICALPARTIAL ENGINE ASSY (2AZ-FE)
2537 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
16. REMOVE ENGINE REAR OIL SEAL
(a) Using a screwdriver and hammer, remove the oil seal.
17. REMOVE CRANKSHAFT POSITION SENSOR PLATE NO.1
18. REMOVE TIMING CHAIN GUIDE
19. REMOVE CHAIN TENSIONER SLIPPER
20. REMOVE CHAIN VIBRATION DAMPER NO.1
21. REMOVE CHAIN SUB-ASSY
22. REMOVE CRANKSHAFT TIMING GEAR OR SPROCKET
23. REMOVE NO.2 CHAIN SUB-ASSY
(a) Turn the crankshaft counterclockwise 90, and align the
adjusting hole of the oil pump driven sprocket with the
groove of the oil pump.
(b) Put a bar (f 4 mm (0.16 in.)) in the adjusting hole of the
oil pump driven sprocket to temporarily lock the sprocket
in position. then remove the nut.