Mazda CX-9 2007 Service Highlights page 525

Screen display
DTC
09: Er20
09: Er21
09: Er22
11: Er01
11: Er03
11: Er10
16: Er12
21: Er17
21: Er18
21: Er19
22: Er01
22: Er02
22: Er07
22: 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.
Information display
• The diagnostic assist function illuminates all
characters in the information display to check for
truncated or faint characters.
Speaker
• The diagnostic assist function outputs sound to the speakers in the specified order to determine the operating
condition of the speakers and wiring harnesses between the base unit and each speaker.
Radio
• The diagnostic assist function displays the radio
reception condition in 10 levels (0-9) to assist in
determining the condition of the antenna, antenna
feeders, and base unit (tuner).
ENTERTAINMENT
Output signal
— Power supply circuit to base unit
— Base unit (peripheral circuit for power amplifier)
— Base unit (peripheral circuit for tuner)
— Sirius unit
— Sirius unit
— Sirius unit—Base unit communication line
— CAN system
— Audio cover system
— Audio cover system
— Audio cover system
— MP3 applicable CD changer system
— MP3 applicable CD changer system
— MP3 applicable CD changer system
— MP3 applicable CD changer communication circuit system
— No DTCs stored
Malfunction location
DISC IN 1 2 3 4 5 6 MD IN AF PTY RPT RDM TA TP AUTO-M
ac9uun00000508
FREQUENCY
acxuun00000371
09-20–15
09-20