fuse chart TOYOTA AVALON 2001 Service Repair Manual

DI-244- DIAGNOSTICSANTI-LOCK BRAKE SYSTEM WITH ELECTRONIC
BRAKE FORCE DISTRIBUTION (EBD)
400 Author
: Date
:
2001 AVALON (RM808U)
INSPECTION PROCEDURE
Troubleshooting in accordance with the chart below for each trouble symptom.
ABS warning light does not light upGo to step 1
ABS warning light remains onGo to step 2
1 Check ABS warning light.
See combination meter troubleshooting on page BE-2.
NG Repair bulb or combination meter assembly.
OK
2 Check active lamp relay.
NG Replace active lamp relay.
OK
Check for open circuit in harness and connector between GAUGE fuse and active lamp relay,
ECU-IG No. 2 fuse and active lamp relay, short circuit between active lamp relay and ABS ECU
(See page IN-30).
3 Is DTC output?
Check the DTC on page DI-212.
YES Repair circuit indicated by the code output.
NO
Check for short circuit in harness and connector and active lamp relay, ECU-IG No. 2 fuse and
active lamp relay, short circuit between active lamp relay and ABS ECU (See page IN-30).

DI0EJ-09
DI-556
- DIAGNOSTICSCRUISE CONTROL SYSTEM
712 Author
: Date
:
2001 AVALON (RM808U)
DIAGNOSTIC TROUBLE CODE CHART
If a malfunction code is displayed during the DTC check, check the circuit listed for that code in the table
below and proceed to the appropriate page.
DTC No.
(See Page)Circuit InspectionTrouble Area
11, 15
(DI-561)Actuator Motor Circuit

Actuator motor

Harness or connector between cruise control ECU and
actuator motor

Cruise control ECU
12
(DI-563)Actuator Magnetic Clutch Circuit

STOP Fuse

Stop light switch

Actuator magnetic clutch

Harness or connector between cruise control ECU and
actuator magnetic clutch, actuator magnetic clutch and body
ground

Cruise control ECU
14
(DI-566)Actuator Mechanical Malfunction
Actuator motor (actuator lock: motor, arm)

Cruise control ECU
21
(DI-568)Open in Vehicle Speed Sensor Circuit

Combination meter

Harness or connector between cruise control ECU and com-
bination meter, combination meter and vehicle speed sensor

Vehicle speed sensor

Cruise control ECU
23
(DI-571)Vehicle Speed Signal Abnormal
Vehicle speed sensor

Cruise control ECU
32
(DI-572)Control Switch Circuit

Cruise control switch

Harness or connector between cruise control ECU and cruise
control switch, cruise control switch and body ground

Cruise control ECU
41Cruise control ECU
Cruise control ECU
42Source voltage drop
Power source
51
(DI-575)Idle Signal Circuit

Throttle position sensor

Harness or connector between ECM and throttle position
sensor

Harness or connector between cruise control ECU and ECM

Cruise control ECU

DI-6
- DIAGNOSTICSENGINE
162 Author
: Date
:
2001 AVALON (RM808U)

TOYOTA hand-held tester only:
When the diagnosis system is switched from the nor-
mal mode to the check mode, it erases all DTC and
freezed frame data recorded in the normal mode. So
before switching modes, always check the DTC and
freezed frame data, and note them down.
(1) Prepare the OBD II scan tool (complying with SAE
J 1978) or TOYOTA hand-held tester.
(2) Connect the OBD II scan tool or TOYOTA hand-
held tester to the DLC3 at the lower center of the
instrument panel.
(3) Turn the ignition switch ON and push the OBD II
scan tool or TOYOTA hand-held tester switch ON.
(4) Use the OBD II scan tool or TOYOTA hand-held
tester to check the DTC and freezed frame data and
note them down (For operating instructions, see the
OBD II scan tool's instruction book.).
If there is no DTC in the normal mode, check the 1st
trip DTC using Continuous Test Results function
(Mode 7 for SAE J1979) on the OBD II scan tool or
TOYOTA hand-held tester.
(5) See page DI-14 to confirm the details of the DTC.
NOTICE:

When simulating symptoms with an OBD II scan tool
(excluding TOYOTA hand-held tester) to check the
DTC, use the normal mode. For code on the DTC chart
subject to º2 trip detection logicº, perform the follow-
ing either action.

Turn the ignition switch OFF after the symptom is
simulated the 1st time. Then repeat the simulation
process again. When the problem has been simulated
twice, the MIL lights up and the DTCs are recorded in
the ECM.

Check the 1st trip DTC using Mode 7 (Continuous Test
Results) for SAE J1979.
(c) Clear the DTC.
The DTCs and freezed frame data will be erased by either
action.

Operating the OBD II scan tool (complying
with SAE J1978) or TOYOTA hand-held tes-
ter to erase the codes. (See the OBD II scan
tool's instruction book for operating instruc-
tions.)

Disconnecting the battery terminals or EFI
fuse.

I11588
(-) (+)
24 (SH)
I11582
(-) (+)
1
DI-538
- DIAGNOSTICSTHEFT DETERRENT SYSTEM
694 Author
: Date
:
2001 AVALON (RM808U)
INSPECTION PROCEDURE
HINT:
The flow chart below is based on the premise that the horns blow normally whenever the horn switch is oper-
ated. If horn operation is not normal when the horn switch is operated, check the horn switch.
1 Check voltage between terminal SH of theft deterrent ECU connector and body
ground.
PREPARATION:
Disconnect the theft deterrent ECU connectors.
CHECK:
Measure voltage between terminal SH of theft deterrent ECU
connector and body ground.
OK:
Voltage: 10 - 14 V
NG Check and repair harness and connector be-
tween theft deterrent ECU and horn relay.
OK
2 Check voltage between terminal 1 of theft deterrent horn connector and body
ground.
PREPARATION:
Remove the theft deterrent horn and disconnect the connector.
CHECK:
Measure voltage between terminal 1 of theft deterrent horn
connector and body ground.
OK:
Voltage: 10 - 14 V
NG Check and repair harness and connector be-
tween HORN fuse and theft deterrent horn.
OK