5HB/WGN (U.S.A. and Canada): Outline
DTC B1A21-2B: (CONNECTIVITY MASTER UNIT) DETECTION CONDITION AND POSSIBLE CAUSE - 5HB/WGN (U.S.A. AND CANADA)
| System malfunction location |
FM antenna amplifier signal circuit malfunction |
| Detection condition |
- The remote tuner (RT) detects a short to ground in the FM antenna amplifier signal circuit, a short to the power supply, or a short circuit between FM antenna amplifier signal circuit and mutual shield for 2 s.
|
| Fail-safe |
Not applicable |
| Possible cause |
- Antenna amplifier connector or terminal malfunction
- Remote tuner (RT) connector or terminal malfunction
- FM antenna amplifier feeder malfunction
- Short to ground in FM antenna amplifier signal circuit
- Short to power supply in FM antenna amplifier signal circuit
- Short to FM antenna amplifier signal circuit and mutual shield
- Antenna amplifier malfunction
- FM antenna amplifier malfunction
- Remote tuner (RT) malfunction
|
 Courtesy of MAZDA MOTORS CORP.
|
*1: Without DAB antenna amplifier
*2: With DAB antenna amplifier |