Page 761 of 2543
INSPECTION PROCEDURE
(See page BE±123).
(See page IN±30).
Check door key lock and unlock switch.
(1)Remove the door trim and service hole cover.
(2)Disconnect the door key lock and unlock switch
connector.
Check continuity between terminals 1, 2 and 3 of
door key lock and unlock switch connector, when
door key lock and unlock switch is turned to the lock
side, unlock side and not turned.
Switch position
Lock side
Unlock side
Terminal
Replace door key lock and unlock switch.
OFF
Proceed to next circuit inspection shown on
matrix chart (See page
BE±123).
Repair or replace harness or connector.
Check harness and connectors between ECU and switch, switch and body
ground (See page IN±30).
± BODY ELECTRICAL SYSTEMBE±159THEFT DETERRENT AND DOOR LOCK CONTROL SYSTEM
Page 762 of 2543
Key Unlock Warning Switch Circuit
CIRCUIT DESCRIPTION
The key unlock warning switch goes on when the ignition key is inserted in the key cylinder and goes off when
the ignition key is removed.
The ECU operates the key confinement prevention function while the key unlock warning switch is on.
BE±160± BODY ELECTRICAL SYSTEM
THEFT DETERRENT AND DOOR LOCK CONTROL SYSTEM
Page 763 of 2543
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INSPECTION PROCEDURE
(See page IN±30).
Check key unlock warning switch.
Check continuity between terminals 1 and 2 of key
unlock warning switch connector, when the key is
inserted to the key cylinder or removed.
Switch position
Terminal
Replace key unlock warning switch.
OFF (Key inserted)
Proceed to next circuit inspection shown on
matrix chart (See page
BE±123).
Repair or replace harness or connector.
Check harness and connectors between ECU and key unlock warning
switch, key unlock warning switch and body ground (See page IN±30).
Disconnect key unlock warning switch connector.
ON (Key inserted)
± BODY ELECTRICAL SYSTEMBE±161THEFT DETERRENT AND DOOR LOCK CONTROL SYSTEM
Page 764 of 2543
CRUISE CONTROL SYSTEM
PARTS LOCATION
BE±162± BODY ELECTRICAL SYSTEM
CRUISE CONTROL SYSTEM
Page 765 of 2543
HOW TO PROCEED WITH TROUBLESHOOTING
Perform troubleshooting in accordance with the procedure on the following page.
P. BE±164
P. BE±166 ~ BE±167
P. BE±24
P. BE±168P. BE±170
P. BE±165 ~ BE±167
P. BE±171 ~ BE±200
Vehicle brought to
Workshop
Customer Problem Analysis
Check and Clear Diagnostic Trouble
Codes (Precheck)
Symptom Simulation
Symptom does
not occur
Problem Symptom Confirmation
Diagnostic Code Check
Diagnostic Code Chart
Normal code
Malfunction Code
Matrix Chart of Problem Symptoms
Circuit Inspection
Input Signal
Check
Parts Inspection
Identification of Problem
Repair
Confirmation TestEND
Symptom
occurTitles inside are titles of pages in this manual,
with the page number indicated in the bottom por-
tion. See the indicated pages for detailed explana-
tions.
Step [2], [5], [8], [10]: Diagnostic steps permitting the use of
the TOYOTA hand±held tester or TOYOTA break±out±box.
± BODY ELECTRICAL SYSTEMBE±163CRUISE CONTROL SYSTEM
Page 766 of 2543

CUSTOMER PROBLEM ANALYSIS
CRUISE CONTROL Check Sheet
Inspector 's
Name:
Registration No.
Customer 's Name Registration Year //
Frame No.
Date Vehicle
Brought In
//
Odometer Reading
km
Miles
Date Problem First Occurred //
How Often does Problem Occur?
Continuous Intermittent ( Times a day)
Vehicle Speed when Problem Occurred
km/h
mph Vehicle Speed when Problem Occurred mph
Auto cancel occurs
Driving condition
City driving Freeway Up hill Down hill
After cancel occurred, did the driver activate cruise
control again?
Yes No
Cancel does not occur
With brake ON With parking brake ON
EXCEPT D RANGE At 40 km/h (25 mph) or less
When control SW turns to CANCEL position
Symptoms
Cruise control
malfunction
Slip to acceleration side
Slip to acceleration side
Hunting occurs
O/D cut off does not occur
O/D does not return
Switch malfunction SET ACCEL. COAST RESUME CANCEL
Faulty CRUISE MAIN
indicator light
Remains ON Does not light up Blinking
Diagnostic Trouble 1st Time Normal Code Malfunction Code (Code )
Code Check
2nd Time
Normal Code Malfunction Code (Code )
BE±164± BODY ELECTRICAL SYSTEM
CRUISE CONTROL SYSTEM
Page 767 of 2543

DIAGNOSIS SYSTEM
INDICATOR CHECK
1. Turn the ignition switch to ON.
2. Check that the CRUISE MAIN indicator light comes on when
the cruise control main switch is turned ON, and that the
indicator light goes off when the main switch is turned OFF.
HINT: If the indicator check result is not normal, proceed to
troubleshooting (See page BE±43 for the combination meter
section.)
DIAGNOSTIC TROUBLE CODE CHECK
HINT: If a malfunction occurs in the vehicle speed sensors or
actuator, etc. during cruise control driving, the ECU actuates
AUTO CANCEL of the cruise control and blinks the CRUISE
MAIN indicator light to inform the driver of a malfunction. At
the same time, the malfunction is stored in memory as a diag-
nostic trouble code.
OUTPUT OF DIAGNOSTIC TROUBLE CODE
Using diagnosis check wire:
1. Turn the ignition switch ON.
2. Using SST, connect terminals Tc and E
1 of DLC2.
SST 09843±18020
3. Read the diagnostic trouble code on the CRUISE MAIN
indicator light.
HINT: If the diagnostic trouble code is not output, inspect the
diagnosis circuit (See page BE±199).
As an example, the blinking patterns for codes; normal, 11
and 21 are shown in the illustration.
4. Check for the problem using the diagnostic trouble code table
on the next page.
5. After completing the check, disconnect terminals Tc and E
1,
and turn off the display.
± BODY ELECTRICAL SYSTEMBE±165CRUISE CONTROL SYSTEM
Page 768 of 2543
Using TOYOTA hand±held tester:
1. Hook up the TOYOTA hand±held tester to the DLC2.
2. Monitor the ECU data by following the prompts on the tester
screen.
HINT: TOYOTA hand±held tester has a ºSnapshotº function
which records the monitored data.
Please refer to the TOYOTA hand±held tester operator's
manual for further details.
ECU TERMINAL VALUES
MEASUREMENT USING TOYOTA
BREAK±OUT±BOX AND TOYOTA
HAND±HELD TESTER
1. Hook up the TOYOTA break±out±box and TOYOTA
handheld tester to the vehicle.
2. Read the ECU input/output values by following the prompts
on the hand±held tester screen.
HINT: TOYOTA hand±held tester has a ºSnapshotº function.
This records the measured values and is effective in the diag-
nosis of intermittent problems.
Please refer to the TOYOTA hand±held tester/TOYOTA
break±out±box operator's manual for further details. BE±166
± BODY ELECTRICAL SYSTEMCRUISE CONTROL SYSTEM