Mazda CX-9 2007 Service Highlights page 528

Error code Malfunction description
20 Insufficient power supply
21 Amplifier related circuit
22 Tuner error
Screen display
DTC
03: Er01
03: Er02
03: Er07
03: Er10
05: Er01
05: Er07
05: Er10
06: Er01
06: Er02
06: Er07
06: Er10
09: Er20
09: Er21
09: Er22
10: Er01
10: Er02
10: Er07
10: Er10
11: Er01
11: Er03
11: Er10
16: Er12
17: Er11
21: Er17
21: Er18
21: Er19
22: Er01
22: Er02
22: Er07
22: Er10
23: Er03
23: Er11
23: Er23
24: Er01
24: Er19
25: Er10
no Err
Diagnostic Assist Function
• The diagnostic assist function displays the operating condition of the following functions (components) and
forces them to operate in order to examine whether they are malfunctioning or not.
• For the start procedure of each mode, refer to the Service Section.
09-20–18
ENTERTAINMENT
Output signal
— CD player system
CHECK CD CD player system
CHECK CD CD player system
— CD player communication circuit system
— CD changer (external) system
CHECK CD CD changer (external) system
— CD changer (external) communication circuit system
— CD changer system
CHECK CD CD changer system
CHECK CD CD changer system
— CD changer communication circuit system
— Power supply circuit to base unit
— Base unit (peripheral circuit for power amplifier)
— Base unit (peripheral circuit for tuner)
— MP3 applicable CD player system
CHECK CD MP3 applicable CD player system
CHECK CD MP3 applicable CD player system
— MP3 applicable CD player communication circuit system
— Sirius unit
— Sirius unit
— Sirius unit—Base unit communication line
— CAN system
— CAN system
— Audio panel system
— Audio panel system
— Audio panel system
— MP3 applicable CD changer system
— MP3 applicable CD changer system
— MP3 applicable CD changer system
— MP3 applicable CD changer communication circuit system
— Audio amplifier
— Audio amplifier
— Audio amplifier
— Audio panel open/close mechanism
— Connectors between base unit and audio panel
— Car-navigation unit
— No DTCs stored
Malfunction location