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SEL693VD
POWER SUPPLY AND GROUND CIRCUIT CHECK FOR
DISPLAY & NAVI CONTROL UNIT
=NAEL0427S04
Power Supply Circuit Check
NAEL0427S0401
Terminal Ignition switch
(+) (−) OFF ACC ON
1 Ground Battery voltage Battery voltage Battery voltage
2 Ground Battery voltage Battery voltage Battery voltage
5 Ground 0V 0V Battery voltage
6 Ground 0V Battery voltage Battery voltage
If NG, check the following.
I 7.5A fuse [No. 11, located in the fuse block (J/B)]
I 10A fuse [No. 10, located in the fuse block (J/B)]
I 15A fuse [No. 4, located in the fuse block (J/B)]
I Harness for open or short between fuse and display & NAVI
control unit
SEL694VD
Ground Circuit Check
NAEL0427S0402
Terminals Continuity
3 - Ground Yes
4 - Ground Yes
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-441
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