Mazda RX-8 Workshop Manual page 3041

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2011 - RX-8 - Body and Accessories
DETERMINING OPEN CIRCUIT LOCATION (MS-CAN) [MULTIPLEX COMMUNICATION SYSTEM]
CAUTION:
If the malfunctioning part is detected in the communication line, before disconnecting the related connector for
inspection, press the connector in the connection direction to verify that there is no looseness or disconnection.
When disconnecting the connector, verify that there is no damage, deformation, or corrosion of the connector
terminals.
1. Verify DTCs of the modules related to the CAN system.
2. Apply the following items to the DTC output pattern and the malfunctioning location, and then verify the reference to the
malfunctioning location.
Communication error DTCs
Display status of the air conditioner/audio control on the information display when the climate control unit,
or either the audio unit or the car-navigation unit is operated.
The operation condition of the SIRIUS satellite radio system and the hands-free telephone system.
NOTE:
A hyphen (-) in the DTC output pattern cell indicates that the DTC may or may not be displayed depending
on the malfunction detection conditions. If it is not displayed, the malfunctioning location can be determined
by checking the crosses (×) and asterisks (*).
3. Inspect the possible cause and inspection item of the applicable malfunctioning part.
4. Perform the DTC inspection after the repair procedure.
If any DTC is displayed, return to
DTC Output Pattern and Malfunctioning Location
Cross (×): Communication error DTCHyphen (-): Communication error DTC (may or may not be displayed)Asterisk (*): No display or no
operation
DTC display
DTC output module DTC
U0164 EATC
Information display
U0184 ACU
Audio unit 11:Er01
Device code 11/
Car-navigation unit
Error code 01
Information display display
FOREWORD [MULTIPLEX COMMUNICATION
DTC output pattern and malfunctioning location
A B C D
× ×
× ×
× × ×
× × ×
Display pattern on information display
SYSTEM].
E F
× ×