DTC B14F4-16: Parking Assist Unit (Ultrasonic) Internal Malfunction [Vehicle Control Module (Us)]: Outline
WARNING: This page is about a different car, the 2020 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.
DTC B14F4:16 (VEHICLE CONTROL MODULE - US) DETECTION CONDITION AND POSSIBLE CAUSE
| System malfunction location |
Parking assist unit (ultrasonic) internal malfunction |
| Detection condition |
- The vehicle control module (VCM) detects that the parking assist unit (ultrasonic) power supply circuit voltage was 8 V or less for 11 s.
|
| Fail-safe |
(See DTC TABLE [VEHICLE CONTROL MODULE (US)]
.) |
| Possible cause |
- DTCs are stored in the PCM.
- Battery malfunction
- Malfunction in generator
- Parking assist unit (ultrasonic) connector or terminal malfunction
- IG1 relay No. 1 malfunction
- Short to ground or open circuit in IG1 relay No. 1 power supply circuit
- Short to ground or open circuit in parking assist unit (ultrasonic) power supply circuit
- Parking assist unit (ultrasonic) malfunction
- Vehicle control module (VCM) malfunction (built into body control module (BCM))
|
 Courtesy of MAZDA MOTORS CORP.
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