DTC B1252:87 [Connectivity Master Unit]: Notes
DTC B1252:87 (CONNECTIVITY MASTER UNIT) DETECTION CONDITION AND POSSIBLE CAUSES
| Description |
Communication error with auxiliary jack/USB port/SD card slot hub |
| Detection condition |
- With the ignition switched ON (engine off or on), the connectivity master unit (CMU) cannot receive a signal from the auxiliary jack/USB port/SD card slot hub.
|
| Fail-safe |
Not applicable |
| Possible cause |
- Auxiliary jack/USB port/SD card slot hub connector or terminal malfunction
- Connectivity master unit (CMU) connector or terminal malfunction
- Open circuit in wiring harness between the following terminals:
- Connectivity master unit (CMU) terminal 4B and auxiliary jack/USB port/SD card slot hub terminal 2B
- Connectivity master unit (CMU) terminal 4D and auxiliary jack/USB port/SD card slot hub terminal 2D
- Auxiliary jack/USB port/SD card slot hub malfunction
- Connectivity master unit (CMU) malfunction
|
|
|