Lexus RX300 (MCU15). Manual — part 391
DI–794
–
DIAGNOSTICS
LEXUS NAVIGATION SYSTEM
LEXUS RX300 (RM785E)
25. CD magazine cannot be inserted.
INSPECTION PROCEDURE
1
Is CD magazine already inserted?
YES
Eject CD magazine.
NO
2
Check the CD auto changer assembly.
PREPARATION:
Disconnect the CD auto changer assembly connector.
CHECK:
Check voltage terminals +B.
OK:
+B: 10 – 14 V
CHECK:
Check voltage terminal ACC when turn ignition switch ACC or ON position.
OK:
ACC: 10 – 14 V
CHECK:
Check continuity terminal GND.
OK:
GND: Continuity
NG
Replace or repair wire harness.
OK
Replace the CD auto changer assembly.
HINT:
When sending it for repair, leave as it is without attempting to take it out by force.
DI7PI–03
–
DIAGNOSTICS
LEXUS NAVIGATION SYSTEM
DI–795
LEXUS RX300 (RM785E)
26. CD magazine cannot be eject.
INSPECTION PROCEDURE
1
Check if RADIO No. 1 fuse is OK?
NG
Replace fuse.
OK
2
Check the CD auto changer assembly.
PREPARATION:
Disconnect the CD auto changer assembly connector.
CHECK:
Check voltage terminals +B.
OK:
+B: 10 – 14 V
CHECK:
Check voltage terminal ACC when turn ignition switch ACC or ON position.
OK:
ACC: 10 – 14 V
CHECK:
Check continuity terminal GND.
OK:
GND: Continuity
NG
Replace or repair wire harness.
OK
Replace or repair the CD auto changer assembly.
HINT:
When sending it for repair, leave as it is without attempting to take it out by force.
DI7PJ–03
DI–796
–
DIAGNOSTICS
LEXUS NAVIGATION SYSTEM
LEXUS RX300 (RM785E)
27. No AM, FM or CD screen is displayed.
INSPECTION PROCEDURE
1
Check the sound. (Check if the sound of the radio, cassette or CD can be heard.)
OK
System check mode. (Check radio receiver as-
sembly)
NG
2
Check the radio receiver assembly.
PREPARATION:
Disconnect the radio receiver assembly connector.
CHECK:
Check voltage terminals +B.
OK:
+B: 10 – 14 V
CHECK:
Check voltage terminal ACC when turn ignition switch ACC or ON position.
OK:
ACC: 10 – 14 V
CHECK:
Check continuity terminal GND.
OK:
GND: Continuity
NG
Replace or repair wire harness.
OK
DI7PK–03
–
DIAGNOSTICS
LEXUS NAVIGATION SYSTEM
DI–797
LEXUS RX300 (RM785E)
3
Check ”AVC–LAN communication circuit” (See page DI–798).
NG
Replace or repair AVC–LAN circuit.
OK
Replace the radio receiver assembly.
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