Page 2249 of 2572

05-1890
- DIAGNOSTICSCOMBINATION METER
2080 Author: Date:
2 READ VALUE OF HAND-HELD TESTER(ENGINE SPEED SIGNAL)
(a) Operate the hand-held tester according to the steps on the display and select the ºDATA LISTº.
METER:
ItemMeasurement Item/
Range (Display)Normal ConditionDiagnostic Note
TACHO METEREngine speed / Min.: 50 rpm, Max.:
12,750 rpmAlmost same as actual engine
speed (When engine is running)-
OK:
Engine speed displayed on the tester is almost the same as the actual engine speed.
NG Go to step 3
OK
REPLACE COMBINATION METER ASSY(SEE PAGE 71-18)
3 READ VALUE OF HAND-HELD TESTER(ENGINE SPEED SIGNAL)
(a) Operate the hand-held tester according to the steps on the display and select the ºDATA LISTº.
ALL (ECM):
ItemMeasurement Item/
Range (Display)Normal ConditionDiagnostic Note
ENGINE SPDEngine speed / Min.: 50 rpm, Max.:
12,750 rpmAlmost same as actual engine
speed (When engine is running)-
OK:
Engine speed displayed on the tester is almost the same as the actual engine speed.
NG GO TO ENGINE CONTROL SYSTEM
(SEE PAGE 05-5, 05-362)
OK
Page 2250 of 2572
I30440
Wire Harness View:
C12-1
A05138
- DIAGNOSTICSCOMBINATION METER
05-1891
2081 Author: Date:
4 INSPECT COMBINATION METER ASSY
INSPECTION USING OSCILLOSCOPE
(a) Check the input signal waveform.
(1) Remove the combination meter assy.
(2) Connect the oscilloscope to the terminals C12-1
and body ground.
(3) Start the engine.
(4) Check the signal waveform according to the condi-
tion (s) in the table below.
ItemCondition
Tool setting5 V/DIV, 10 ms/DIV
Vehicle conditionEngine idle speed
OK:
As shown in the illustration
NG Go to step 5
OK
REPLACE COMBINATION METER ASSY(SEE PAGE 71-18)
Page 2251 of 2572
I40608
Combination Meter Assy
Wire Harness View: ECM Wire Harness View:
C12-1
E5-5
I40144
E5-5 ECM Wire Harness View:
05-1892
- DIAGNOSTICSCOMBINATION METER
2082 Author: Date:
5 CHECK HARNESS AND CONNECTOR(ECM - COMBINATION METER ASSY)
(SEE PAGE 01-26)
(a) Disconnect the C12 and E5 connectors.
(b) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester ConnectionConditionSpecified Condition
C12-1 - E5-5AlwaysBelow 1 W
C12-1 - Body groundAlways10 kW or higher
NG REPAIR OR REPLACE HARNESS AND
CONNECTOR
OK
6 INSPECT COMBINATION METER ASSY
(a) Disconnect the E5 connector.
(b) Measure the voltage according to the value(s) in the table
below.
Standard:
Tester ConnectionConditionSpecified Condition
E5-5 - Body groundIgnition switch ON10 to 14 V
NG REPLACE COMBINATION METER ASSY
(SEE PAGE 71-18)
OK
GO TO ENGINE CONTROL SYSTEM(SEE PAGE 05-5, 05-366)
Page 2252 of 2572
I44266
ECM
E2
THW E719 E728
BR
G-BBR*1
1
2 5
S29 S285
E2
Engine
Coolant
Temp Sensor Short ConnectorC11
Combination Meter Assy
BEANMPX- 21
*1: 2AZ-FE
*2: 3MZ-FEW-B*2 BR
05-1896
- DIAGNOSTICSCOMBINATION METER
2086 Author: Date:
MALFUNCTION IN WATER TEMPERATURE RECEIVER GAUGE
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT:
If there is an open or short in the engine coolant temperature sensor circuit, the ECM outputs DTCs. Perform
troubleshooting with the ºSFI System 05-5,.05-366º.
1 PERFORM ACTIVE TEST BY HAND-HELD TESTER
(a) Operate the hand-held tester according to the steps on the display and select the ºACTIVE TESTº.
METER:
ItemTest DetailsDiagnostic Note
COOLANT TEMPLOW / NORMAL / HI-
OK:
Needle indication is normal.
NG REPLACE COMBINATION METER ASSY
(SEE PAGE 71-18)
OK
05IQ0-05
Page 2253 of 2572
- DIAGNOSTICSCOMBINATION METER
05-1897
2087 Author: Date:
2 READ VALUE OF HAND-HELD TESTER(ENGINE COOLANT)
(a) Operate the hand-held tester according to the steps on the display and select the ºDATA LISTº.
ECM:
ItemMeasurement Item/
Range (Display)Normal ConditionDiagnostic Note
COOLANT TEMPCoolant Temperature / Min.: -40C
(-40°F), Max.: 140C (284°F)After warming up: 80 to 95°C (176
to 203°F)If the value is º-40C (-40°F)º or
º140C (284°F)º, sensor circuit is
open or shorted.
OK:
Coolant temperature displayed on the tester is between 80C (176F) and 95C (203F) after
warning up.
NG GO TO ENGINE CONTROL SYSTEM
(SEE PAGE 05-5, 05-366)
OK
3 REPLACE COMBINATION METER ASSY
OK:
Normal operation
NG GO TO ENGINE CONTROL SYSTEM
(SEE PAGE 05-5, 05-366)
OK
END
Page 2254 of 2572
0305U-04
6N
8N
10N
11 N
12N
B06432
Nut Type
Present Standard
Hexagon Nut
Cold Forging Nut Cutting Processed NutClass
4N
5N (4T)
6N
7N (5T)
8N
10N (7T)
11 N
12N Old Standard Hexagon Nut
No Mark (w/ Washer)No Mark
*
No Mark (w/ Washer)
No Mark
No Mark
*: Nut with 1 or more marks on one side surface of the nut.
- SERVICE SPECIFICATIONSSTANDARD BOLT
03-3
124 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
HOW TO DETERMINE NUT STRENGTH
HINT:
Use the nut with the same number of the nut strength classification or the greater than the bolt strength clas-
sification number when tightening parts with a bolt and nut.
Example: Bolt = 4T
Nut = 4N or more
Page 2255 of 2572
160Q2-03
A73603
16-32
- COOLINGRADIATOR ASSY (3MZ-FE)
2818 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
RADIATOR ASSY (3MZ-FE)
ON-VEHICLE CLEANING
1. INSPECT FINS BLOCKAGE
(a) If the fins are clogged, wash them with water or a steam
cleaner. Dry with compressed air.
NOTICE:
If the distance between the steam cleaner and the
core is too close, the fins may become damaged.
Keep the following injection distance.
Standard:
DistanceSteam Cleaner Pressures
300 mm (11.81 in.)2,942 to 4,903 kPa
(30 to 50 kgf/cm2, 427 to 711 psi)
500 mm (19.69 in.)4,903 to 7,845 kPa
(50 to 80 kgf/cm2, 711 to 1,138 psi)
If the fins are bent, straighten them with a screwdriver
or pliers.
Never apply water directly onto the electronic compo-
nents.
Page 2256 of 2572

18091-05
CHECK POWER SUPPLY TO IGNITION COIL (WITH
IGNITER)
SPARK TEST
1. Turn ignition switch ON.
2. Check that there is battery voltage at ignition coil positive (+)
terminal.
CHECK IF WIRE HARNESS SIDE CONNECTOR OF
IGNITION COIL (WITH IGNITER) IS SECUREConnect securely.
Check wiring between ignition switch to
ignition coil (with igniter).
NG
OK
OKNG
NG PERFORM SPARK TEST WITH A DIFFERENT
IGNITION COIL (WITH IGNITER)
1. Replace current ignition coil (with igniter) with a different,
functioning ignition coil (with igniter).
2. Perform spark test again.
OKIf sparks occur, replace faulty ignition coil
(with igniter).
NG
Continue on next page
Standard:ColdHot
1,060 to 1,645 W
OKNG
835 to 1,400 WReplace camshaft position sensor. CHECK RESISTANCE OF CAMSHAFT POSITION
SENSOR (See page 18-5)
- IGNITIONIGNITION SYSTEM (2AZ-FE)
18-1
2861 Author: Date:
IGNITION SYSTEM (2AZ-FE)
ON-VEHICLE INSPECTION
NOTICE:
In this section, the terms coldº and hotº refer to the temperature of the coils. ºColdºmeans approxi-
mately -10C (14F) to 50C (122F). ºHotº means approximately 50C (122F) to 100C (212F).
1. INSPECT IGNITION COIL ASSY (WITH IGNITER) AND PERFORM SPARK TEST
(a) Check for DTCs.
NOTICE:
If a DTC is present, perform a troubleshooting in accordance with the procedure for that DTC.
(b) Check if sparks occur.
(1) Remove the engine cover No. 1 (see page 14-24).
(2) Remove the ignition coils.
(3) Using a 16 mm (0.63 in.) plug wrench, remove the spark plugs.
(4) Install the spark plugs to each ignition coil and connect the ignition coil connectors.
(5) Disconnect the 4 injector connectors.
(6) Ground the spark plugs.
(7) Check if sparks occur at each spark plug while the engine is being cranked.
NOTICE:
Be sure to ground the spark plug when checking.
Replace the ignition coil if given physical impact is given to the coil.
Do not crank the engine for more than 2 seconds.
If the sparks do not occur, do the following test: