Mazda RX-8 Workshop Manual page 3037

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2011 - RX-8 - Body and Accessories
DTC U2516, 16:Er12, DEVICE CODE:16 ERROR CODE:12, 26:Er81, DEVICE CODE:26 ERROR
CODE:81 [MULTIPLEX COMMUNICATION SYSTEM]
U2516 Information display
16:Er12 Audio unit
Device code:16
Car-navigation unit
DTC error code:12
Device code:26
Hands-free telephone unit (with Car-navigation system)
error code:81
26:Er81 Hands-free telephone unit (without Car-navigation system)
WARNING:
DETECTION
CONDITION
POSSIBLE CAUSE
Perform the following on-board diagnosis according to
COMMUNICATION SYSTEM]
CAN system related harness malfunction
CAN system-related module malfunction
Malfunction of connectors between information display, car-navigation unit or audio unit,
SIRIUS satellite radio unit, hands-free telephone unit and climate control unit
Open or short circuit in wiring harness
Information display malfunction
Climate control unit malfunction
Car-navigation unit or audio unit malfunction
SIRIUS satellite radio unit malfunction
Hands-free telephone unit malfunction
troubleshooting procedure.
CAN system communication error
FOREWORD [MULTIPLEX