Page 3217 of 4770
AB0117AB0118AB0119
H02309H02314
LOCK ACC
ON
or
AB0118
R14305AB0119
H00030
ACCON
or
E1
Tc
(+) (±)
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±797
1032 Author: Date:
INSPECTION PROCEDURE
If the DTC is not displayed, do the following troubleshooting.
1 Does SRS warning light up for approx. 6 seconds?
PREPARATION:
Check operation of the SRS warning light after ignition switch
is turned from LOCK position to ACC or ON position.
NO Check SRS warning light system.
(See page DI±626)
YES
2 Check voltage between terminals Tc and E1 of DLC1.
PREPARATION:
Turn ignition switch to ACC or ON.
CHECK:
Measure the voltage between terminals Tc and E1 of DLC1.
OK:
Voltage: 10 ± 14 V
OK Go to step 4.
NG
Page 3218 of 4770

AB0118
R14304AB0119
H00031
ACCON
orTc
(+)
(±)
AB0117 AB0118 AB0119H01302H01303
LOCK
ACCON
or
Airbag Sensor Assembly
Tc
DI±798
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1033 Author: Date:
3 Check voltage between terminal Tc of DLC1 and body ground.
CHECK:
Measure the voltage between terminal Tc of DLC1 and body
ground.
OK:
Voltage: 10 ± 14 V
OK Check harness between terminal E1 of DLC1
and body ground.
NG
4 Check airbag sensor assembly.
PREPARATION:
(a) Turn ignition switch to LOCK.
(b) Disconnect negative (±) terminal cable from the battery,
and wait at least for 90 seconds.
(c) Disconnect the airbag sensor assembly connector.
(d) Insert service wire into terminal Tc from back side as
shown in the illustration.
(e) Connect the airbag sensor assembly connector with ser-
vice wire.
(f) Connect negative (±) terminal cable to the battery.
(g) Turn ignition switch to ACC or ON and wait at least for 20
seconds.
(h) Connect service wire of terminal Tc to body ground.
CHECK:
Check operation of SRS warning light.
OK:
SRS waning light comes on.
NOTICE:
Pay due attention to the terminal connecting position to
avoid a malfunction.
OK Check harness between the airbag sensor as-
sembly and DLC1.
NG
Replace airbag sensor assembly.
Page 3219 of 4770
AB0119H01304H01305
LOCKAirbag Sensor Assembly
Tc
(+)
(±)
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±799
1034 Author: Date:
If the DTC is displayed without a DTC check procedure, perform the following
troubleshooting.
1 Check resistance between terminal Tc of airbag sensor assembly and body
ground.
PREPARATION:
(a) Turn ignition switch to LOCK.
(b) Disconnect negative (±) terminal cable from the battery,
and wait at least for 90 seconds.
(c) Disconnect the airbag sensor assembly connector.
CHECK:
Check resistance between terminal Tc of the airbag sensor as-
sembly connector and body ground.
OK:
Resistance: 1 MW or Higher
NG Repair or replace harness or connector.
OK
Replace airbag sensor assembly.
Page 3220 of 4770

DI05L±03
Vehicle Brought to Workshop
Customer Problem Analysis
Circuit Inspection
Symptom Simulation
Identification of Problem
Confirmation TestEND
1
23
4
7
Repair5
6
DI±801
IN±21
DI±809
Problem Symptom Confirmation
Diagnostic Procedure
Transmitter Inspection
Transmitter Malfunction
Titles inside are titles of pages in
this manual, with the page number indicated
in the bottom position. See the indicated
pages for detailed explanations.
Some functions of wireless door lock
control system do not operate Whole wireless
door lock control
system does not
operate
DI±802
DI±802
DI±810
8
Problem Symptoms Table DI±800
± DIAGNOSTICSWIRELESS DOOR LOCK CONTROL SYSTEM
1035 Author: Date:
WIRELESS DOOR LOCK CONTROL SYSTEM
HOW TO PROCEED WITH TROUBLESHOOTING
HINT:
Troubleshooting of the wireless door lock control system is based on the premise that the door lock control
system is operating normally. Accordingly, before troubleshooting the wireless door lock control system, first
make certain that the door lock control system is operating normally.
Perform troubleshooting in accodnce with procedure on the following page.
Page 3221 of 4770

DI05M±02
WIRELESS DOOR LOCK CONTROL System Check Sheet
Customer 's Name
Registration No.
Registration Year
Frame No.
Odometer ReadingInspector 's
Name
km
Miles //
//
// Date Vehicle Brought In
Date Problem First Occurred
Frequency Problem Occurs
Weather Conditions
When Problem Oc-
curred
Date Transmitter Battery Last ReplacedWeather
Outdoor Temperature
PlaceConstant Sometimes ( times per day, month)
Once only
Fine
Cloudy Rainy Snowy
Various/Others
HotWarm Cool
Cold (Approx. °F ( °C))
EverywhereSpecific Locality( )
//
Problem Symptom
Whole wireless door lock control system does not operate.
Only door unlock operation is not possible.
Only door lock operation is not possible.
Only key confinement prevention function is not possible.
Wireless door lock function operates even each door is opened.
Wireless door lock functions incorrectly.
( Although one door is unlocked, when the transmit-
ter switch is pressed, all doors become unlocked.)When Front RH door is unlocked
When Front LH door is unlocked
When Rear RH door is unlocked
When Rear LH door is unlocked
Others
Only PANIC operation is not possible.
± DIAGNOSTICSWIRELESS DOOR LOCK CONTROL SYSTEM
DI±801
1036 Author: Date:
CUSTOMER PROBLEM ANALYSIS CHECK
Page 3222 of 4770

DI05N±03
N13160
N13161
I00239
DI±802
± DIAGNOSTICSWIRELESS DOOR LOCK CONTROL SYSTEM
1037 Author: Date:
PRE±CHECK
1. INSPECT TRANSMITTER
1 Check the transmitter operation.
HINT:
This inspection is not directly for the purpose of checking the ca-
paciy of the transmitter battery, but is performed when remote
control operation becomes difficult or impossible, in order to as-
certain if this is caused by low battery capacity.
PREPARATION:
(a) Using a screwdriver, pry outward the cover.
(b) Remove the battery.
CHECK:
(a) Connect 4 new 1.5±V dry±cell batteries in series. Con-
nect the battery terminal to the battery receptacle side
terminal and the battery terminal to the bottom terminal
to provide 6 V to the transmitter.
(b) Push the wireless door lock remote control switch on the
side of the transmitter body and operate the door lock by
remote control.
OK:
Remote control operation is possible.
OK Replace the battery for transmitter.
(See page DI±802)
NG
Replace transmitter and registration of rec-
ognition code. (See page DI±802)
Page 3223 of 4770

I00306
Destroy
Transmitter
EPROM
ECU
ECU
TransmitterNew Parts
Registration
of recogition
code.
N13157
New Part
Dispose of
I00307
Registration
of recogition
codeDestory ECU New Parts
± DIAGNOSTICSWIRELESS DOOR LOCK CONTROL SYSTEM
DI±803
1038 Author: Date:
2. REPLACE WIRELESS DOOR LOCK ECU AND TRANS-
MITTER
HINT:
Disassembly and assembly of the transmitter includes details
of spare parts and replacement procedure for detective parts
found through troubleshooting.
Each part is a precision electronic component so handle with
care.
(a) Spare parts and replacement procedure for malfunction-
ing parts (transmitter malfunction):
(1) Prepare a new transmitter.
(2) Registration of recogition code.
(3) Check that door lock remote control operation
works.
(b) Spare parts and replacement procedure for malfunction-
ing parts (battery malfunction):
(1) Prepare a new battery.
(2) Remove the battery from transmitter.
(3) Install a new battery into transmitter.
(c) Spare parts and replacement procedure for malfunction-
ing parts (ECU malfunction):
(1) Prepare a new ECU.
(2) Remove the ECU from the vehicle.
(3) Install a new ECU in the vehicle.
(4) Registration of recogition code.
Page 3224 of 4770

N13159
N13160
I08491
GND
PRG
PRG
GND
Wireless Door
Lock ECU
Remote Control Mirror
Switch Connector
DI±804
± DIAGNOSTICSWIRELESS DOOR LOCK CONTROL SYSTEM
1039 Author: Date:
(d) Replace the battery for transmitter.
(1) Using a screwdriver, pry outward the cover.
(2) Remove the battery.
(3) Set a new battery into the transmitter.
(4) Install the cover to the transmitter.
3. REGISTRATION OF RECOGNITION CODE
The recognition code of the transmitter is electronically regis-
tered (written to and stored) in an EEPROM contained in the
wireless door lock ECU. This makes it possible to register up to
2 different codes in the EEPROM.
New recognition codes can be registered after all previous
codes have been erased. A transmitter code can be registered
into the EEPROM by following the steps numbered (1) to (5).
(1) The wireless door lock ECU and remote control mir-
ror switch are connected to each other via a PRG
terminal, and the GND terminal of the remote con-
trol mirror switch connector is grounded to body.
Remove the connector from the remote control mir-
ror switch, and use a test lead to short the PRG and
GND connector together. As a result, the PRG ter-
minal of the wireless door lock ECU will be
grounded to body and will cause all transmitter rec-
ognition codes previously registered in the EE-
PROM to be erased. At the same time, the ECU will
respond by operating once the lock and unlock
functions of all the doors, and the open function of
the trunk lid.