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4 CHECK VOICE SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect NAVI control unit connector and AUDIO unit connector.
3. Check continuity between NAVI control unit terminal 30 and AUDIO unit terminal 36.
4. Check continuity between NAVI control unit terminal 31 and AUDIO unit terminal 34.
SEL649X
YesorNo
Yes © Repair or replace audio system.
Refer to “AUDIO”, EL-170.
No © Repair or replace harness or connector.
GI
MA
EM
LC
EC
FE
CL
MT
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
NAVIGATION SYSTEM
Trouble diagnoses (Cont’d)
EL-443
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