Operation CHARM: Car repair manuals for everyone.
Home >> Mazda >> 2012 >> 5 L4-2.5L >> Repair and Diagnosis >> A L L Diagnostic Trouble Codes ( DTC ) >> Testing and Inspection >> U Code Charts >> U0010 >> Multiplex Communication System
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Multiplex Communication System





DTC U0010:88, U001088, U0498:68, 16:Er12, 26:Er81 [MULTIPLEX COMMUNICATION SYSTEM]

CAUTION:
- First perform the following malfunction diagnosis according to the Initial Inspection and Diagnostic Overview troubleshooting procedure.

Detection condition

- CAN system-related wiring harness malfunction
- CAN system-related module malfunction

Possible cause

- Connector malfunction
- Open or short circuit in wiring harness
- Instrument cluster malfunction
- Climate control unit malfunction
- Audio unit malfunction
- Sirius satellite radio unit malfunction
- Bluetooth unit malfunction
- Information display malfunction

System wiring diagram





Diagnostic Procedure

CAUTION:
- When disconnecting the connector, verify that there is no looseness, damage, deformation, corrosion, or poor connection of the connector terminals.
- When inspecting the DLC-2, touch it with a paper clip or similar thin pin without directly inserting a tester into the terminals.









pro multis · About Operation CHARM