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Decode report: clutch and transmission not on CAN, stated once; no camera trigger plan
/ crosscheck (push) Successful in 0s
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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DDwfd6Ki8UfG4hK6W5YpJz
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Mikkeli Matlock
2026-10-13 21:48:07 +09:00
parent 0eab0e660e
commit 5feba8b354
1 changed files with 9 additions and 11 deletions
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docs/impl/reports/Z27AG-DECODE-1.md
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@@ -46,17 +46,15 @@ jack-stands session and a GNSS-matched drive settle both the byte order and the
## Not on this bus (or not seen) ## Not on this bus (or not seen)
- **Clutch pedal:** nothing changed in 3 presses, engine off. - **Clutch and transmission are not on this bus.** Nothing changed for the clutch
- **Gear position:** nothing in 5 gears, reverse or neutral. Expected for a manual: (3 presses), any of the 5 gears, neutral or reverse: nothing on the car consumes
nothing on the car consumes it. Not computed from rpm ÷ wheel speed either (owner's them, so no frame carries them. Reverse was rechecked against both reverse
call, 2026-10-13): the clutch is invisible, so the ratio lies whenever it slips or is stretches (engine off and engine on) versus every other position: no bit
down, and the gear matters most at a standstill (no 3rd-gear launch), where the ratio separates them.
says nothing. A *recommended* gear from speed and rpm is the useful form, if any. - **Gear is not inferred from rpm ÷ wheel speed** (owner's call, 2026-10-13): the
- **Reverse:** rechecked against both reverse stretches (engine-off gear walk, engine-on clutch is invisible, so the ratio lies whenever it is down or slipping, and the
back crawl) versus every other gear, neutral, the forward crawl and idle: no bit gear matters most at a standstill, where the ratio says nothing. A *recommended*
separates them (the one near-miss, `449.0.0`, is the low bit of a temperature). The gear from speed and rpm is the useful form, if any.
reverse lamp is wired, not on this bus; a backup camera would take its trigger from
the lamp circuit. The jack-stands run's reverse step is one more sample.
- **Steering angle:** not analysed yet (step 5 was done with the engine on, at the end). - **Steering angle:** not analysed yet (step 5 was done with the engine on, at the end).
## Not analysed yet ## Not analysed yet