54A-1
CHASSIS
ELECTRICAL
CONTENTS
GENERAL 2.................................
Outline of Changes 2...........................
General Information 2..........................
Construction Diagram 3.........................
IMMOBILIZER SYSTEM 5.....................
COMBINATION METER 5.....................
Troubleshooting 5..............................
RV METER 6................................
Troubleshooting 6..............................
RV meter 23...................................
GLASS ANTENNA 24........................
Antenna feeder cable 24........................
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SWS -Troubleshooting54B-43
Inspection Procedure P-3
Key reminder switch signal is not sent to the ETACS-ECU.Probable cause
The key reminder switch input signal is used to operate the following devices. If
the signal fails, these devices will not work normally.
DForgotten key prevention function
DKeyless entry system
DIgnition key hole illuminaiton lamp
DRoom lamp dimming functionDMalfunction of key reminder switch
DMalfunction of ETACS-ECU
DMalfunction of harness wire or connector
NG
Replace
OK
NG
NG
Repair
NG
Check the harness wire between key reminder switch and body
earth.
OK
NG
Repair
NG
NG
Repair
OK
Replace the ETACS-ECU.
Check the harness wire between key reminder switch and ETACS-
ECU.
OK
Check trouble symptoms.
Check the following connectors:
D-202, D-226
Measure at key reminder switch connector D-202.
DDisconnect connector and measure at harness side.
DContinuity between terminal 4 and body earth.
OK:Continuity
OK
Check trouble symptoms.
Check the following connectors:
D-202, D-30
Check the key reminder switch. (Refer to GROUP 54A – Ignition
Switch and Immobilizer System.)
Inspection Procedure P-4
Hazard warning lamp switch signal is not sent to the
ETACS-ECU.Probable cause
The hazard warninglampswitch input signal is used to operate the following
devices. If the signal fails, these devices will not work normally.
DHazard warninglamp
DKeyless entry system (Registering the encrypted code)DMalfunction of hazard warninglampswitch
DMalfunction of ETACS-ECU
DMalfunction of harness wire or connector
NG
Replace
OK
NG
NG
Repair
NG
Check the harness wire between hazard warninglampswitch and
body earth.
OK
NG
Repair
NG
NG
Repair
OK
Replace the ETACS-ECU.
Check the harness wire between hazard warninglampswitch and
ETACS-ECU.
OK
Check trouble symptoms.
Check the following connectors:
D-104, D-226
Measure at hazard warninglampswitch connector D-104.
DDisconnect connector and measure at harness side.
DContinuity between terminal 2 and body earth.
OK:Continuity
OK
Check trouble symptoms.
Check the following connector:
D-104
Check the hazard warninglampswitch. (Refer to GROUP 54A
– Hazard WarningLampSwitch.)
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