SWS ± Troubleshooting
54B-17
Inspection Procedure C-3
Central door locking system: All the doors do not lock or
unlock with just the driver's door lock key cylinder key
operation or driver's inside lock knob operation.
Probable cause
The driver's door lock actuator switch or the ETACS-ECU may be defective. D Malfunction of driver's door lock actuator
D Malfunction of ETACS-ECU
D Malfunction of harness wire or connector
MUT-II input signal check
D Driver's door lock actuator switch
NG
Check the driver's door lock actuator switch input circuit. (Refer
to P.54B-44, Inspection Procedure N-13.)
OK
Replace the ETACS-ECU.
Inspection Procedure C-4
Central door locking system: All the doors do not lock or
unlock with just the passenger's or back door lock key
cylinder key operation.
Probable cause
The passenger's or back door lock key cylinder or the ETACS-ECU may be
defective.
D Malfunction of passenger's or back door lock key
cylinder switch
D Malfunction of ETACS-ECU
D Malfunction of harness wire or connector
MUT-II input signal check
D Passenger's door lock key cylinder switch
D Back door lock key cylinder switch
NG
Check the defective input circuit. (Refer to P.54B-13, Defects Found
by Input Signal Check.)
OK
Replace the ETACS-ECU.
Inspection Procedure C-5
Central door locking system: Forgotten key prevention
function does not work.
Probable cause
The ETACS-ECU operates the forgotten key prevention function, based on the
input signals from the following switches:
D Key reminder switch
D Driver's door switch
D Driver's door lock actuator switch
If the function does not work normally, a defect on the relevant circuit or the
ETACS-ECU may be suspected.
D Malfunction of key reminder switch
D Malfunction of driver's door switch
D Malfunction of driver's door lock actuator
D Malfunction of ETACS-ECU
D Malfunction of harness wire or connector
MUT-II input signal check
D Key reminder switch
D Driver's door switch
D Driver's door lock actuator switch
NG
Check the defective input circuit. (Refer to P.54B-13, Defects Found
by Input Signal Check.)
OK
Replace the ETACS-ECU.
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