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Home >> Mazda >> 2017 >> CX-3 Touring, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> On-Board Diagnostic - Audio >> DTC 16-Er11; 16-Er12; 26-Er81; CAN COMMUNICATION ERROR >> With Bluetooth® unit

With Bluetooth® unit

DETECTION CONDITION & POSSIBLE CAUSE

Description
  • 16:Er11
    • CAN communication time-out
  • 16:Er12
    • Unit communication error
  • 26:Er81
  • Communication error with Bluetooth® unit
Detection condition
  • 16:Er11
    • Time-out occurs in the audio unit CAN signal.
  • 16:Er12
    • The audio unit cannot receive CAN signal.
  • 26:Er81
  • The audio unit cannot receive CAN signal from the Bluetooth® unit.
Fail-safe
  • 16:Er11
    • Not applicable
  • 16:Er12
    • Not applicable
  • 26:Er81
  • Not applicable
Possible cause
  • Audio unit connector or terminal malfunction
  • CD player connector or terminal malfunction
  • Bluetooth® unit connector or terminal malfunction
  • Connector C-37 connector or terminal malfunction
  • Short to power supply in wiring harness between the following terminals:
    • Audio unit terminal 1O and CD player terminal G
    • Audio unit terminal 1O and Bluetooth® unit terminal Y
  • Short to ground in wiring harness between the following terminals:
    • Audio unit terminal 1Q and CD player terminal H
    • Audio unit terminal 1Q and Bluetooth® unit terminal Z
  • Short between circuits in the following wiring harness:
    • Audio unit terminal 1O and CD player terminal G
    • Audio unit terminal 1Q and CD player terminal H
    • Audio unit terminal 1O and Bluetooth® unit terminal Y
    • Audio unit terminal 1Q and Bluetooth® unit terminal Z
  • Open circuit in wiring harness between the following terminals:
    • CD player terminal G and connector C-37
    • CD player terminal H and connector C-37
    • Bluetooth® unit terminal Y and connector C-37
    • Bluetooth® unit terminal Z and connector C-37
    • Audio unit terminal 1O and connector C-37
    • Audio unit terminal 1Q and connector C-37
  • CD player malfunction
  • Bluetooth® unit malfunction
  • Audio unit malfunction
G11472248
CAUTION:
  • When disconnecting the connector, verify that there is no looseness, damage, deformation, corrosion, or poor connection of the connector terminals.