2002 TOYOTA AVENSIS cruise control

71±2
±
INSTRUMENT PANEL/METER COMBINATION METER
AVENSIS REPAIR MANUAL (RM1018E)
SLIP indicator light does not come on.
1.Wire Harness or Connector
2.Skid Control ECU
3.Combination Meter Assy±
05±752 ±
CRUISE indicator light does not come on.
1.Wire Harness or Connector
2.ECM
3.Combination Meter Assy±
±
±
High Beam indicator light does not come on.
1.Wire Harness or Connector
2.Headlight Dimmer Switch
3.Combination Meter Assy±
65±9 ±
Fr FOG indicator does not come on.
1.Wire Harness or Connector
2.Fr FOG Relay
3.Fr FOG Light Switch
4.Combination Meter Assy±
±
±
±
Rr FOG indicator does not come on.
1.Wire Harness or Connector
2.Rr FOG Relay
3.Rr FOG Light Switch
4.Combination Meter Assy±
±
±
±
TAIL indicator does not come on.
1.Wire Harness or Connector
2.TAIL Relay
3.Combination Meter Assy±
±
±
WATER LEVEL indicator does not come on (1KD±FTV).
1.Wire Harness or Connector
2.Water Level Sensor
3.Combination Meter Assy±
±
±
EMPS indicator does not come on.
1.Wire Harness or Connector
2.EMPS ECU
3.Combination Meter Assy±
±
±
A/T OIL TEMP indicator does not come on.
1.Refer to troubleshooting
2.Wire Harness or Connector
3.Combination Meter Assy05±856
±
±
ECT SNOW indicator does not come on.
1.Refer to troubleshooting
2.Wire Harness or Connector
3.Combination Meter Assy05±980±
±
AUTO LEVELING indicator does not come on.
1.Wire Harness or Connector
2.Auto Leveling ECU
3.Combination Meter Assy±
±
±
Meter Gauges:
SymptomSuspect AreaSee page
Speedometer does not operate.1.Refer to troubleshooting05±1510
Water temperature does not operate.1.Refer to troubleshooting05±1515
Tachometer does not operate.1.Refer to troubleshooting05±1513
Fuel Gauge does not operate or operates abnormally.1.Refer to troubleshooting05±1517
OTHERS:
SymptomSuspect AreaSee page
key reminder buzzer does not operate.
1. Wire Harness or Connector
2. Body ECU (KSW, DCTY)
3. Door Coutesy Switch
4. Key Unlock Warning Switch
5. Combination Meter Assy±
±
±
05±1586 ±
Light reminder buzzer does not operate.
1. Wire Harness or Connector
2. Body ECU (DCTY)
3. Combination Meter Assy±
±
±
Seat belt Warning buzzer does not operate.
1. Perform DATA LIST with hand±held tester
2. Wire Harness or Connector
3. Seat Belt Buckle Switch
4. Combination Meter Assy05±1499±
61±3
±

010B6±13
±
INTRODUCTION HOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS01±21
AVENSIS REPAIR MANUAL (RM1018E)
HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS
GENERAL INFORMATION
There are many ECU controlled systems used in the AVENSIS. In general, ECU controlled system are con-
sidered to be very intricate and require a high level of technical knowledge an\
d expert skill to troubleshoot.
The fact is, however, that if you proceed by inspecting the circuits one by one, troubleshoo\
ting of these sys-
tems is not complex. If you have adequate understanding of the system and ba\
sic knowledge of electricity,
the problem can be accurately diagnosed and fixed. This manual is design\
ed based on the above principle
to help service technicians perform accurate and effective troubleshooting, and is compiled for the following
major ECU controlled systems:
The troubleshooting procedures are described on the following pages.
SystemPage
1. SFI System [1ZZ±FE, 3ZZ±FE]05±1
2. SFI System [1AZ±FE]05±143
3. SFI System [1AZ±FSE]05±290
4. ECD System [1CD±FTV]05±523
5. ABS with EBD System05±696
6. ABS with EBD & BA & TRC & VSC System05±752
7. Electronic Controlled Automatic Transmission [ECT] [U241 (1AZ±FE)]05±856
8. Electronic Controlled Automatic Transmission [ECT] [U241 (1AZ±FSE)]05±915
9. Electronic Controlled Automatic Transmission [ECT] [U341]05±980
10.Electronic Motor Power Steering System05±1042
11. Air Conditioning System05±1088
12.Combustion Type Power Heater System05±1161
13.Supplemental Restraint System05±1181
14.Audio System05±1393
15.Navigation System05±1435
16.Combination Meter05±1497
17.Power Door Lock Control System05±1534
18.Wireless Door Lock Control System05±1568
19.Key Reminder Warning System05±1586
20.Engine Immobiliser System05±1599
21.Theft Deterrent System05±1627
22.Multiplex Communication System05±1654
23.Cruise Control System05±1697
FOR USING HAND±HELD TESTER

Before using the tester, the tester's operator manual should be read thoroughly.

If the tester cannot communicate with the ECU controlled systems when you \
have connected the cable
of tester to the DLC3, turned the ignition switch ON and operated the test\
er, there is a problem on the
vehicle side or tester side.
(1) If the communication is normal when the tester is connected to another veh\
icle, inspect the diag-
nosis data link line (Bus
line) or ECU power circuit of the vehicle.
(2) If the communication is still impossible when the tester is connected to a\
nother vehicle, the prob- lem is probably in the tester itself, so perform the Self Test procedures outlined in the Tester Oper-
ator 's Manual.

± INTRODUCTIONHOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS01±25
AVENSIS REPAIR MANUAL (RM1018E)
SYMPTOM CONFIRMATION AND DIAGNOSTIC TROUBLE CODE
HINT:

The diagnostic system in AVENSIS has various functions. The first function is the Diagnostic Trouble
Code (DTC) Check, in which a malfunction in the signal circuits to the ECU is stored in code form in
the ECU memory. Another function is the Input Signal Check, which checks if the signals from various
switches are sent to the ECU correctly. By using these check functions, it is possible to quickly narrow
down potential problem areas and troubleshooting can be performed effectively. The diagnostic func-
tions are incorporated in the following systems in the AVENSIS.
SystemDiagnostic Trouble
Code CheckInput Signal Check
(Sensor Check)Diagnostic Test
Mode (Active Test)
SFI System (1AZ±FE/1AZ±FSE, 1ZZ±FE/3ZZ±FE)

(with Check Mode)


ECD System (1CD±FTV)

(with Check Mode)


ABS with EBD System



ABS with EBD & BA & TRC & VSC System



Electronically Controlled Automatic Transmission [ECT]

(with Check Mode)

Air Conditioning System


Supplemental Restraint System

Audio System

Power Door Lock Control System


Wireless Door Lock Control System

Key Reminder Warning System

Engine Immobiliser System


Theft Deterrent System


Multiplex Communication System

Cruise Control System



In the DTC check, it is very important to determine whether the problem indicated by the DTC is still
occurring or has occurred in the past but returned to normal at present. In addition during the problem
symptom check, it a check must be made on whether the malfunction indicated by the DTC is directly
related to the problem symptom or not. For this reason, the DTC should be checked before and after
symptom confirmation to determine the current conditions. If this is not done, it may, depending on the
case, result in unnecessary troubleshooting for systems that are operating normally. This would make
more difficult to detect the problem area or to try to repair irrelevant areas. Therefore, always follow
the procedures in the correct order and perform the DTC check.

A flow chart showing how to proceed with troubleshooting using the diagnostic trouble code (DTC)
check is shown the this page. This flow chart shows how to utilize the DTC check effectively. Then,
by carefully checking the results, this chart indicates how to proceed either to the DTC troubleshooting
or to the troubleshooting of the problem symptoms table.
1 DTC check
2 Make a note of DTCs displayed and then clear the memory
3 Symptom confirmation

E68132
E68133
E65594
Free Pushed in4
2
13
± LIGHTINGLIGHTING SYSTEM
65±13
AVENSIS REPAIR MANUAL (RM1018E)
20. HEADLAMP LEVELING SWITCH
(a) Connect the battery positive (+) lead to the terminal 1 and
the battery negative (±) lead to the terminal 5.
(b) Measure the resistance between the terminal 2 and the
battery negative (±) lead when headlamp leveling switch
is operated.
(c) Measure the resistance between the terminal 4 and the
battery negative (±) lead when headlamp leveling switch
is operated.
Standard:
Switch positionResistance (
)
01.0 ± 1.2
11.6 ± 1.9
22.3 ± 2.6
32.9 ± 3.3
43.5 ± 3.9
54.1 ± 4.6
(d) Inspect switch illumination.
(1) Connect the battery positive (+) lead to the terminal
3 and the battery negative (±) lead to the terminal
5, and check that the illumination comes on.
21. STOP LAMP SWITCH ASSY (W/O CRUISE CONTROL)
(a) Check the continuity between each of the terminals when switch is operated.
Standard:
ON (When shaft is pushed): No continuity
OFF (When shaft is not pushed): Continuity
22. STOP LAMP SWITCH ASSY (W/ CRUISE CONTROL)
(a) Check the continuity between the terminals at each
switch position as shown in the chart.
Standard:
Switch positionTester connectionSpecified condition
Switch pin free1 ± 2No continuity
Switch pin free3 ± 4Continuity
Switch pin pushed in1 ± 2Continuity
Switch pin pushed in3 ± 4No continuity
23. BACK UP LAMP SWITCH ASSY
(a) Check the continuity between each of the terminals when switch is operated.
Standard:
ON (When shaft is pushed): Continuity
OFF (When shaft is not pushed): No continuity