DL–56
DOOR LOCK – WIRELESS DOOR LOCK CONTROL SYSTEM
No Answer-Back (Hazard Warning Light and Wireless Door Lock
Buzzer)
DESCRIPTION
If there is no answer-back of the hazard warning lights and wireless door lock buzzer while the wireless
control function is operating normally, the hazard light signal and the wireless door lock buzzer signal
output from the body ECU may be malfunctioning.
NOTICE:
Confirm that the answer-back function has been switched on as a result of customization before
starting troubleshooting.
DL
DL–57
DOOR LOCK – WIRELESS DOOR LOCK CONTROL SYSTEM
WIRING DIAGRAM
with Daytime Running Light
Instrument Panel J/B Assembly
W3
Wireless Door Lock Buzzer
2
Body ECU
10
1B
9
Y-B
6
1B
7
14
1J
8
1
D2
Turn Signal Flasher Relay
10
HAZ
P-B
W
To
Hazard Warning
Signal Switch
W
without Daytime Running Light
Body ECU
P-B
10
1B
9
Y-B
6
1B
7
8
1
8
10
IF1
W
14
1J
To
Hazard Warning
Signal Switch
W
15
1J
W
HAZ
Instrument Panel J/B Assembly
T9
Turn Signal Flasher Relay
EHW
BZR2
15
1J
W3
Wireless Door Lock Buzzer
2
BZR
BZR
BZR2
HAZ
DL
B134205E01
INSPECTION PROCEDURE
DL–58
DOOR LOCK – WIRELESS DOOR LOCK CONTROL SYSTEM
When using intelligent tester:
1
CHECK WIRELESS DOOR LOCK CONTROL FUNCTIONS
(a) Check that the wireless door lock functions operate
when the transmitter is used (See page DL-29).
Result
Condition
Proceed To
Wireless door lock functions operate normally but hazard
warning light answer-back does not occur
A
Wireless door lock functions operate normally but wireless door
lock buzzer answer-back does not occur
B
Wireless door lock functions do not operate
Go to "Only Wireless Control Function is Inoperative" (See page
DL-44)
B
Go to step 4
A
2
PERFORM ACTIVE TEST BY INTELLIGENT TESTER (HAZARD WARNING LIGHT)
(a) Connect the intelligent tester to the DLC3.
(b) Turn the ignition switch to the ON position and turn the
intelligent tester main switch on.
(c) Select the ACTIVE TEST mode on the intelligent tester.
BODY:
Item (Display)
HAZARD
Vehicle Condition / Test Details
Diagnostic Note
Turns the turn signal flasher relay ON / OFF
Observe headlight and rear combination light
for correct operation
(d) Check that "ON" and "OFF" of the hazard warning lights
on the headlight and rear combination light turn on and
off when the intelligent tester is used.
OK:
The hazard warning lights turn on or off in
accordance with commands of the intelligent
tester.
NG
Go to step 3
OK
REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY
DL
3
CHECK HAZARD WARNING LIGHTS
(a) Check that the hazard warning lights flash continuously
when the hazard warning light switch is pressed.
OK:
Hazard warning lights flash continuously.
NG
INSPECT LIGHTING SYSTEM
DL–59
DOOR LOCK – WIRELESS DOOR LOCK CONTROL SYSTEM
OK
REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY
4
PERFORM ACTIVE TEST BY INTELLIGENT TESTER (WIRELESS DOOR LOCK BUZZER)
(a) Connect the intelligent tester to the DLC3.
(b) Turn the ignition switch to the ON position and turn the
intelligent tester main switch on.
(c) Select the ACTIVE TEST mode on the intelligent tester.
BODY:
Item (Display)
Vehicle Condition / Test Details
Diagnostic Note
BUZZ CONT SOUND
Turns wireless door lock buzzer ON / OFF
Buzzer can be heard
BUZZ RESP SOUND
Turns wireless door lock buzzer ON / OFF
Buzzer can be heard
(d) Check that the buzzer sounds/stops when turning the
wireless door lock buzzer on/off by using the intelligent
tester.
Result
Condition
Proceed To
Buzzer sounds/stops
A
Buzzer does not sound or sounds constantly
B
B
Go to step 5
A
REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY
5
INSPECT WIRELESS DOOR LOCK BUZZER
(a) Disconnect the wireless door lock buzzer connector.
(b) Measure the resistance according to the value(s) in the
table below.
HINT:
The buzzer circuit is built into the ECU, not into the
buzzer itself. When battery voltage is applied directly to
the buzzer, the buzzer does not sound.
Resistance
Wireless Door Lock Buzzer:
2
1
Tester Connection
Condition
Specified Condition
1-2
Always
Approx. 1 kΩ
NG
B110079E04
OK
REPLACE WIRELESS DOOR LOCK BUZZER
DL
DL–60
6
DOOR LOCK – WIRELESS DOOR LOCK CONTROL SYSTEM
CHECK HARNESS AND CONNECTOR (WIRELESS DOOR LOCK BUZZER - INSTRUMENT
PANEL J/B)
(a) Disconnect the buzzer connector (W3) and J/B (1B)
connector.
(b) Measure the resistance according to the value(s) in the
table below.
Standard resistance
Wire Harness Side
W3
Wireless Door Lock Buzzer
Tester Connection
Condition
Specified Condition
W3-1 - 1B-10 (BZR)
Always
Below 1 Ω
W3-2 - 1B - 6 (BZR2)
Always
Below 1 Ω
NG
REPAIR OR REPLACE HARNESS OR
CONNECTOR
1B
Instrument Panel J/B Assembly
B062227E02
OK
REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY
When not using intelligent tester:
1
CHECK WIRELESS DOOR LOCK CONTROL FUNCTIONS
(a) Check that the wireless door lock functions operate
when the transmitter is used (See page DL-29).
Result
Condition
Proceed To
Wireless door lock functions operate normally but hazard
warning light answer-back does not occur
A
Wireless door lock functions operate normally but wireless door
lock buzzer answer-back does not occur
B
Wireless door lock functions do not operate
DL
Go to "Only Wireless Control Function is Inoperative" (See page
DL-44)
B
A
Go to step 3
DL–61
DOOR LOCK – WIRELESS DOOR LOCK CONTROL SYSTEM
2
CHECK HAZARD WARNING LIGHTS
(a) Check that the hazard warning lights flash continuously
when the hazard warning light switch is pressed.
OK:
Hazard warning lights flash continuously.
NG
INSPECT LIGHTING SYSTEM
OK
REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY
3
INSPECT WIRELESS DOOR LOCK BUZZER
(a) Disconnect the wireless door lock buzzer connector.
(b) Measure the resistance according to the value(s) in the
table below.
HINT:
The buzzer circuit is built into the ECU, not into the
buzzer itself. When battery voltage is applied directly to
the buzzer, the buzzer does not sound.
Resistance
Wireless Door Lock Buzzer:
2
1
Tester Connection
Condition
Specified Condition
1-2
Always
Approx. 1 kΩ
NG
REPLACE WIRELESS DOOR LOCK BUZZER
B110079E04
OK
DL
DL–62
4
DOOR LOCK – WIRELESS DOOR LOCK CONTROL SYSTEM
CHECK HARNESS AND CONNECTOR (WIRELESS BUZZER - INSTRUMENT PANEL J/B)
(a) Disconnect the buzzer (W3) connector and J/B (1B)
connector.
(b) Measure the resistance according to the value(s) in the
table below.
Standard resistance
Wire Harness Side
W3
Wireless Door Lock Buzzer
Tester Connection
Condition
Specified Condition
W3-1 - 1B-10 (BZR)
Always
Below 1 Ω
W3-2 - 1B - 6 (BZR2)
Always
Below 1 Ω
NG
REPAIR OR REPLACE HARNESS OR
CONNECTOR
1B
Instrument Panel J/B Assembly
B062227E02
OK
REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY
DL