SWS ± Troubleshooting
54B-14
Trouble symptom Reference
page
Inspection
procedure
Power window
main switch
Any switch signal is not sent to the ETACS-ECU. N-16 54B-46
Transmitter Any switch signal is not sent to the ETACS-ECU. N-17 54B-46
Multi-center dis-
play
Any switch signal is not sent to the ETACS-ECU. N-18 54B-47
INSPECTION PROCEDURE FOR TROUBLE SYMPTOMS
Inspection Procedure A-1
Communication with the MUT-II is impossible. Probable cause
The harness wires between the ETACS-ECU power supply line or the
ETACS-ECU and the diagnosis connector may be defective.
D Malfunction of ETACS-ECU
D Malfunction of harness wire or connector
Can MUT-II communicate with other system?
No
Check and repair the self-diagnosis system with the MUT-II.
Yes
Is communication with the MUT-II possible when the ignition
switch is at the ON position?
Yes
Check the ETACS-ECU battery circuit. (Refer to P.54B-47, Inspec-
tion Procedure O-1.)
No
Measure at ETACS-ECU connector C-82.
D Disconnect connector and measure at J/B side.
D Continuity between terminal 20 and body earth.
OK: Continuity
NG
Check following connector:
C-01, C-75, C-82
OK
Check trouble symptoms.
NG
Repair
NG
Check the harness wire between ETACS-ECU and body earth.
OK
Check following connector:
C-35, C-83
NG
Repair
NG
Check the harness wire between ETACS-ECU and diagnosis con-
nector.
NG
Repair
OK
Replace the ETACS-ECU.
OK
Check trouble symptoms.
NG
Repair
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