CHASSIS ELECTRICAL ± Multi-center Display <Middle Grade>
54A-71
Termi-
Input/
p
Signal Symbol Terminal
Harness Problem
Trouble Symptom Resulting from
na
o.
u
pu
o
age
(V)
Open
Circuit
Short-
circuit
arness
ro
em
17 Input/
Output
M±BUSY (AUDIO) Hi: 4 ± 5
Lo: 0 ± 1
f f Audio display dose not appear. Panel
switch cannot be operated for audio
unit. Nighttime illumination dose not
appear for audio unit.
18 ± SHIELD±GND ± ± ± ±
19 ± 22 ± ± ± ± ± ±
23 Input EX±TEMP f f Outside air temperature does not
appear.
24 Input ILL+ Hi:
System
f ± Nighttime illumination does not ap-
pear for any navigation system units.
vo
age
Lo: 0 ± 1
± f Blown multipurpose fuse.
25 Input ACC (ACC power
pp
System
f ± Screen display does not appear.
supp
y
vo
age
± f Blown multipurpose fuse.
26 Input +B System
f ± Screen display does not appear.
vo
age
± f Blown multipurpose fuse.
27 Input VSS f ± No effect.
28 ± GND (Ground) ± f ± Screen display does not appear.
29, 30 ± ± ± ± ± ±
31 ± GND±TEMP ± f f Outside air temperature does not
appear.
32 ± ILL± ± ± ± ±
33 Input FUEL GAUGE ± f f Abnormal cruising distance display.
34, 35 ± ± ± ± ± ±
36 Input IG1 System
voltage
f ± Communication with engine-ECU is
not possible.
Driving data values displayed are
abnormal.
± f Communication with engine-ECU is
not possible.
Driving data values displayed are
abnormal.
Blown multipurpose fuse.