Mazda CX-9 2007 Service Highlights page 530

ON-BOARD DIAGNOSTIC SYSTEM FUNCTION [HANDS-FREE TELEPHONE (HF/TEL) SYSTEM]
• The on-board diagnostic system has a self-diagnostic function and diagnostic assist function to help
technicians locate malfunctions.
• In the on-board diagnostic test mode, present malfunctions are indicated on the information display as DTCs.
(For the touch panel type audio unit, present malfunctions are indicated on the audio display.)
Self-diagnostic Function
Malfunction detection function
• The malfunction detection function detects malfunctions occurring in the HF/TEL system.
Display function
• When the self-diagnostic function is activated, the information display displays the DTC stored in the memory.
• The DTC consists of the following codes and numbers:
— Malfunction type
— Device code (indicates malfunctioning part)
— Error code (indicates malfunction description)
• Refer to the Service Section for the display method.
Standard audio
.
1 Malfunction type
• C: Present malfunction
2 Device code
• 26: HF/TEL unit
3 Error code
Touch panel type audio
09-20–20
ENTERTAINMENT
PRESENT MALFUNCTION
PRESENT MALFUNCTION
id0920001018a8
3
ac9uun00000497
ac9uun00000509