ChapmanF's Recent Activity

  1. ChapmanF replied to the thread AISIN WQT-800 inverter pump failing within a year?.

    It's possible for multiple things to be true at once, like (1) Aisin may be the manufacturer from whom Toyota obtains the pumps they...

    Sep 14, 2025 at 9:53 PM

  2. ChapmanF replied to the thread Acceleration & Slip Light.

    There's a wider range of behavior possible from the traction control and VSC system than just to "shut down" engine power. That could be...

    Sep 14, 2025 at 4:16 PM

  3. ChapmanF replied to the thread Speakers 20-20khz.

    Mathematically, a square wave is a sine wave at the fundamental frequency (here, 7500 Hz) combined with sine waves at all odd multiples...

    Sep 14, 2025 at 12:51 PM

  4. ChapmanF replied to the thread Speakers 20-20khz.

    Do you discern any difference between the different waveform choices at 7500 Hz?

    Sep 14, 2025 at 11:59 AM

  5. ChapmanF replied to the thread disable key fob due to stolen registration.

    Using Techstream or any similarly-capable scan tool, there are fob registration procedures available, as long as you have access to one...

    Sep 14, 2025 at 11:12 AM

  6. ChapmanF replied to the thread Speakers 20-20khz.

    Depends on whether you think 'intent' is about what you're hearing in the space where you're listening, or just arbitrarily what some...

    Sep 14, 2025 at 11:06 AM

  7. ChapmanF replied to the thread Hazard, turn signal, backup camera.

    If they are white wires with narrow black stripes, they are probably grounds. Look somewhere in the vicinity (maybe behind some trim)...

    Sep 14, 2025 at 11:02 AM

  8. ChapmanF replied to the thread brake alarm signal warning but no codes.

    There are two parallel systems since around 1968, but they're not always fronts and rears. In gen 2 Prius they are paired diagonally,...

    Sep 13, 2025 at 11:29 PM

  9. ChapmanF replied to the thread Speakers 20-20khz.

    It wouldn't surprise me if the drivers listed with "crappy freq range" were just advertised more honestly than some more "impressive"...

    Sep 13, 2025 at 11:14 PM

  10. ChapmanF replied to the thread 05' P0a08-264/P0a09-591 head scratcher.

    Yes.

    Sep 13, 2025 at 4:26 PM

  11. ChapmanF replied to the thread Life expectancy.

    I'm still perplexed, though. If he was 98 in 1948, he was born in 1850. If he was 8 when his father was murdered, that happened in 1858....

    Sep 13, 2025 at 4:22 PM

  12. ChapmanF replied to the thread iPhone charger tip broke off in Prius 2 cigarette lighter.

    There won't be any 12V there if the car is turned off. I wouldn't hold out much hope for "slide it back in and twist" to engage the...

    Sep 13, 2025 at 4:14 PM

  13. ChapmanF replied to the thread iPhone charger tip broke off in Prius 2 cigarette lighter.

    The side grabbing metal is a ball in this version. Looks like it's still there. The positive tip that unscrews for access to the fuse,...

    Sep 13, 2025 at 10:42 AM

  14. ChapmanF replied to the thread Brake fluid gone in 3 months after brake booster & master cylinder replacement.

    Brake line connections are basic, but also fairly fiddly. Some little piece of grot on the flare, or not starting the nut quite straight...

    Sep 13, 2025 at 10:39 AM

  15. ChapmanF replied to the thread Help! Torque converter went bad?.

    A prolonged episode of engine misfiring (for whatever reason) is something that can melt the catalyst honeycomb like that. The fuel that...

    Sep 13, 2025 at 10:22 AM
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