unixadm
Well-known member
- Joined
- Feb 15, 2021
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- Location
- Elk Grove, CA
- Vehicles
- 2021 F150 Platinum PowerBoost FX4
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- #1
Pedestrian Alert System - Overview
Overview
Due to the quiet nature of vehicles operating in electric mode, pedestrians may not be aware of the presence and operation of the vehicle, thus risking potential injury to pedestrains. The pedestrian alert system provides an audible sound from a front mounted speaker to indicate to pedestrians that the vehicle is approaching in forward or reverse ranges at vehicle speeds between 0-30 km/h (0-18 mph).
I wasn't exactly sure where to post this, but the PowerBoost and I'm sure the full EV F150 have a Pedestrian Alert System. It plays the reverse chime from what I can tell and generates a fake engine noise at lower speeds (0-18 mph). At first, I thought I was being followed by a rice rocket until I realized the noise was coming from my truck. Even with the windows up, you can hear this annoying noise in the cabin.
The speaker assembly is located in front of the truck, in front of the far lower left side of the radiator (driver's side). It's a fairly sizable assembly which has a two wire connector and a down facing speaker. Unfortunately, the control module monitors for an open (resistance measurement), so simply unplugging it presented a warning in the cluster about the speaker. I ran through the diagnosis procedure to look at the symptom chart, but decided to try disconnecting it anyhow, which presented the warning. For now, I've taken some dense foam to attenuate the volume, but man I'd like for it to go away. Sounds really goofy IMO. It's on even when the gas engine is on. I may get my probes out and measure the resistance and see about installing a resistor to see if that would bypass it without getting a warning. The speaker is in a difficult to access position, so just getting the connector off without disassembling the front of the truck is a challenge. Maybe if you have tiny hands it wouldn't be so bad. It just takes a little creativity with tools to get the connector to release is all. I did it in about a minute.
At least the foam cut the volume down by probably a third, but my friend asked me yesterday if I had a muffled Miata under the hood. I own a Miata so he was making fun of both the truck and the Miata. LOL
It's not the end of the world but I figured I'd start the conversation.
Overview
Due to the quiet nature of vehicles operating in electric mode, pedestrians may not be aware of the presence and operation of the vehicle, thus risking potential injury to pedestrains. The pedestrian alert system provides an audible sound from a front mounted speaker to indicate to pedestrians that the vehicle is approaching in forward or reverse ranges at vehicle speeds between 0-30 km/h (0-18 mph).
I wasn't exactly sure where to post this, but the PowerBoost and I'm sure the full EV F150 have a Pedestrian Alert System. It plays the reverse chime from what I can tell and generates a fake engine noise at lower speeds (0-18 mph). At first, I thought I was being followed by a rice rocket until I realized the noise was coming from my truck. Even with the windows up, you can hear this annoying noise in the cabin.
The speaker assembly is located in front of the truck, in front of the far lower left side of the radiator (driver's side). It's a fairly sizable assembly which has a two wire connector and a down facing speaker. Unfortunately, the control module monitors for an open (resistance measurement), so simply unplugging it presented a warning in the cluster about the speaker. I ran through the diagnosis procedure to look at the symptom chart, but decided to try disconnecting it anyhow, which presented the warning. For now, I've taken some dense foam to attenuate the volume, but man I'd like for it to go away. Sounds really goofy IMO. It's on even when the gas engine is on. I may get my probes out and measure the resistance and see about installing a resistor to see if that would bypass it without getting a warning. The speaker is in a difficult to access position, so just getting the connector off without disassembling the front of the truck is a challenge. Maybe if you have tiny hands it wouldn't be so bad. It just takes a little creativity with tools to get the connector to release is all. I did it in about a minute.
At least the foam cut the volume down by probably a third, but my friend asked me yesterday if I had a muffled Miata under the hood. I own a Miata so he was making fun of both the truck and the Miata. LOL
It's not the end of the world but I figured I'd start the conversation.
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