DTC U0184-00: Communication Error With Tuner And Amp Unit U0187-00: Communication Error With Cd Player: Notes
WARNING: This page is about a different car, the 2016 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.
| Description |
- U0184:00
- Communication error with tuner and amp unit (TAU)
- U0187:00
- Communication error with CD player
|
| Detection condition |
- U0184:00
- The connectivity master unit (CMU) cannot receive a CAN signal from the tuner and amp unit (TAU) for 5 s or more
.
- U0187:00
- The connectivity master unit (CMU) cannot receive a CAN signal from the CD player for 5 s or more
.
|
| Fail-safe |
|
| Possible cause |
- Connectivity master unit (CMU) connector or terminal malfunction
- Tuner and amp unit (TAU) connector or terminal malfunction
- CD player connector or terminal malfunction
- Short to power supply in wiring harness between the following terminals:
- Connectivity master unit (CMU) terminal 2I-Tuner and amp unit (TAU) terminal 2O
- Connectivity master unit (CMU) terminal 2I-CD player terminal G
- Short to ground in wiring harness between the following terminals:
- Connectivity master unit (CMU) terminal 2J-Tuner and amp unit (TAU) terminal 2Q
- Connectivity master unit (CMU) terminal 2J-CD player terminal H
- Short between circuits in the following wiring harness:
- Connectivity master unit (CMU) terminal 2I-Tuner and amp unit (TAU) terminal 2O
- Connectivity master unit (CMU) terminal 2J-Tuner and amp unit (TAU) terminal 2Q
- Connectivity master unit (CMU) terminal 2I-CD player terminal G
- Connectivity master unit (CMU) terminal 2J-CD player terminal H
- Tuner and amp unit (TAU) power supply circuit malfunction
- Connector C-37 connector or terminal malfunction
- Open circuit in wiring harness between the following terminals:
- Connectivity master unit (CMU) terminal 2I-Connector C-37
- Connectivity master unit (CMU) terminal 2J-Connector C-37
- Tuner and amp unit (TAU) terminal 2O-Connector C-37
- Tuner and amp unit (TAU) terminal 2Q-Connector C-37
- CD player terminal G-Connector C-37
- CD player terminal H-Connector C-37
- Open circuit in wiring harness between tuner and amp unit (TAU) terminal 2W and ground
- Open circuit in wiring harness between CD player terminal A and ground
- CD player power supply circuit malfunction
- Short to ground in wiring harness between MAIN 200 A fuse and CD player terminal Z
- MAIN 200 A fuse malfunction
- ROOM 25 A fuse malfunction
- INTERIOR 15 A fuse malfunction
- Open circuit in wiring harness between battery positive terminal and CD player terminal Z
- Tuner and amp unit (TAU) malfunction
- CD player malfunction
- Connectivity master unit (CMU) malfunction
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CAUTION:
- When disconnecting the connector, verify that there is no looseness, damage, deformation, corrosion, or poor connection of the connector terminals.