2001 TOYOTA HIGHLANDER Service Repair Manual

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Page 1721 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual A90871
Crankshaft Position Sensor
(36-2 teeth or 12 teeth)ECM
Camshaft Position Sensor
- DIAGNOSTICSSFI SYSTEM (2AZ-FE)
05-147
337 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)DTC No.
DTC

Page 1722 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual 05-148
- DIAGNOSTICSSFI SYSTEM (2AZ-FE)
338 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
MONITOR STRATEGY
Related DTCs
P0300: Multiple cylinder misfire
P0301: cylinder 1 misfire
P0302: cy

Page 1723 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual A90297
7 3
12
4 7#1
#2
E7 AM21
F7
FL Block Assy2
E7 E7
E7
E7
E7 1
1
W-B
W-B222
IG2
E02E01#3
#4 I9
Injector No. 2 I8
Injector No. 1
I10
Injector No. 3
I11
Injector No. 4
Battery FL
Main15
EB1
1C
1 IG2

Page 1724 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual 05-150
- DIAGNOSTICSSFI SYSTEM (2AZ-FE)
340 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
CONFIRMATION DRIVING PATTERN
(a) Connect the hand-held tester to the DLC3.
(b) Record the DTCs, f

05-150
- DIAGNOSTICSSFI SYSTEM (2AZ-FE)
340 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
CONFIRMATION DRIVING PATTERN
(a) Connect the hand-held tester to the DLC3.
(b) Record the DTCs, freeze frame data and misfire counter data.
(c) Set the hand-held tester to check mode (see page 05-40).
(d) Read the value on the misfire counter for each cylinder when idling. If the value is displayed on the
misfire counter, skip the following procedure of confirmation driving.
(e) Drive the vehicle several times with the engine speed, load and its surrounding range shown with EN-
GINE SPD, CALC LOAD in the freeze frame data or MISFIRE RPM, MISFIRE LOAD in the DATA LIST.
If you have no hand-held tester, turn the ignition switch OFF after the symptom is simulated once. Then re-
peat the simulation process again.
HINT:
In order to memorize the misfire DTC, it is necessary to drive with MISFIRE RPM, MISFIRE LOAD in the
DATA LIST for the period of time in the chart below. Take care not to turn the ignition switch OFF. Turning
the ignition switch OFF switches the diagnosis system from check mode to normal mode and all DTCs,
freeze frame data and other data are erased.
Engine SpeedTime
Idling3 minutes 30 seconds or more
1,000 rpm3 minutes or more
2,000 rpm1 minute 30 seconds or more
3,000 rpm1 minute or more
(f) Check if there is misfire or not by monitoring, DTC and the freeze frame data. Record the DTCs, freeze
frame data and misfire counter data.
(g) Turn the ignition switch OFF and wait for at least 5 seconds.
INSPECTION PROCEDURE
HINT:
If DTCs besides misfire DTCs are memorized simultaneously, troubleshoot the non-misfire DTCs first.
Read freeze frame data using the hand-held tester or the OBD II scan tool. Freeze frame data records
the engine conditions when a malfunction is detected. When troubleshooting, freeze frame data can
help determine if the vehicle was running or stopped, if the engine was warmed up or not, if the air-fuel
ratio was lean or rich, and other data from the time the malfunction occurred.
If the misfire does not occur when the vehicle is brought to the workshop, the misfire can be confirmed
by reproducing the condition of the freeze frame data. Also, after finishing the repair, confirm that there
is no misfire (see confirmation driving pattern).
On 6 and 8 cylinder engines, cylinder specific misfire fault codes are disabled at high engine speeds.
If the misfire starts in a high engine speed area or the misfire occurs only in a high engine speed area,
only the general fault code P0300 will be stored.
When only a general misfire fault code like P0300 is stored:
(1) Erase the general misfire fault code from the ECM using the hand-held tester or OBD II scan
tool.
(2) Start the engine and drive the confirmation pattern.
(3) Read the value of the misfire ratio for each cylinder. Or read the DTC.
(4) Perform repairs on the cylinder that has a high misfire ratio. Or repair the cylinder indicated by
the DTC.
(5) After finishing repairs, drive the confirmation pattern again and confirm that no misfire occurs.
When either of SHORT FT #1, LONG FT #1 in the freeze frame data is over the range of ±20 %, there
is a possibility that the air-fuel ratio is becoming to RICH (-20 % or less) or LEAN (+20 % or more).
When COOLANT TEMP in the freeze frame data is less than 80°C (176°F), there is a possibility of
misfire only during engine warm-up.

Page 1725 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual - DIAGNOSTICSSFI SYSTEM (2AZ-FE)
05-151
341 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
If the misfire cannot be reproduced, the following reasons may apply: 1) the vehicle has low fuel

Page 1726 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual A85380
1.0 to 1.1 mmBase of the
Ground Electrode
05-152
- DIAGNOSTICSSFI SYSTEM (2AZ-FE)
342 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
4 READ VALUE OF HAND-HELD TESTER OR OBD II SCAN

Page 1727 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual Y
A54393
A81699
A85513
Wire Harness Side
E7
ECM
IGF1
I2
I3
I4
I5
Ignition Coil
- DIAGNOSTICSSFI SYSTEM (2AZ-FE)
05-153
343 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
6 CHANGE NORMAL

Page 1728 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual Y
A54393
A81699
A85513
Wire Harness Side
I2
I3
I4
I5
Ignition Coil
E7
ECM
IGT1
IGT2
IGT3
IGT4
05-154
- DIAGNOSTICSSFI SYSTEM (2AZ-FE)
344 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
(

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