OBD-II Code
P1564
Severity
Not yet reviewed
Nobody on our side has assessed this code yet, so we are not going to guess at how serious it is.
Can you drive it
We cannot say
Treat it as unknown until a shop reads it with live data. If the check-engine light is FLASHING, stop driving as soon as it is safe to — that means an active misfire, whatever the code.
Indicative cost (USD)
$80–$400
From this code's diagnostic notes. Varies by vehicle, diagnosis, parts, and local labor. This is not a repair quote.
P1564 on a Lexus/Toyota means the Acceleration Sensor — specifically the steering-wheel-mounted cruise-control acceleration tilt sensor that lets the driver tap the cruise stalk to bump the set speed up or down — has reported a signal out of valid range, and the cruise control system disables itself as a safety response.
How a shop works this
Work from evidence to part, not the other way round. A code names a circuit or a symptom; it does not name the part that failed.
Note every code that is set, not just this one.
Codes that appear together usually narrow the cause faster than any one of them read alone.
Read the freeze frame — the conditions the fault was recorded under.
Cold or warm, idle or load, road speed and engine speed. A fault that only appears cold is a different fault from one that only appears under load, even with the same code on the scanner.
Confirm the fault is current rather than history.
Clear the code and see whether it returns under those same conditions. A code that does not come back may have been logged during a repair, a flat battery, or a bad connection that has since been disturbed.
Then follow the diagnostic notes further down this page, in the order they are written.
They are written in the order a shop works this code, cheapest checks first. Where they name a component, inspect its wiring and connector before replacing it.
If the code comes back after a repair, the underlying fault is still there. That is the point to bring in a scanner with live data and freeze-frame, or a shop that has one.
Common symptoms
- Check engine light
Read the full diagnostic procedureP1564 on a Lexus/Toyota means the Acceleration Sensor — specifically the steering-wheel-mounted cruise-control acceleration tilt sensor that lets the…
P1564 on a Lexus/Toyota means the Acceleration Sensor — specifically the steering-wheel-mounted cruise-control acceleration tilt sensor that lets the driver tap the cruise stalk to bump the set speed up or down — has reported a signal out of valid range, and the cruise control system disables itself as a safety response. The sensor is a small Hall-effect or potentiometric tilt sensor inside the cruise stalk assembly, and on the platforms that use it (mostly 1990s and early-2000s Lexus LS/GS/IS), it feeds a 0-5V analog signal to the cruise ECU; valid range is typically 0.5V to 4.5V with center at 2.5V, and signals outside 0.2-4.8V for more than 1 second throw the code and kill cruise.
Cheapest-first ladder
- check the cruise main switch with cruise OFF — main switch open reads 0V at the cruise ECU input, switched ON reads 5V. If the main switch reads anything between, the stalk contacts are dirty (cheap clean with contact cleaner) or the stalk module is failing.
- Operate the cruise stalk through its full range with a scan tool reading the accel-sensor PID — a healthy sensor sweeps smoothly from ~0.5V to ~4.5V; dropouts to 0V or jumps to 5V indicate a worn pot or bad solder joint inside the stalk.
- Inspect the spiral cable (clockspring) behind the steering wheel for chafe — a partial short in the cruise wires running through the clockspring is a common root cause and mimics a bad sensor perfectly. Expensive-misdiagnosis caveat: don't replace the cruise ECU for P1564 — the cruise ECU virtually never fails internally; the fault is in the stalk, the clockspring, or the harness from the column to the ECU about 98% of the time, and a $300-$600 cruise ECU swap is the wrong call.
Vehicle-specific patterns1995-2000 Lexus LS400 and 2001-2006 LS430 are the most common P1564 platforms — the cruise stalk module's tilt sensor wears around 150K mi and the sy…
- 1995-2000Lexus LS400 and 2001-2006 LS430 are the most common P1564 platforms — the cruise stalk module's tilt sensor wears around 150K mi and the symptoms start as intermittent cruise dropout before the code finally latches.
- 1993-2005Lexus GS300/GS400/GS430 share the same stalk family and the same wear pattern.
- 1999-2005Lexus IS300 (2JZ-GE) throws P1564 less often but with the same root cause when it does.
- 2000-2007Toyota Avalon and 2002-2009 Camry XLE with adaptive cruise variants share fragments of the same architecture and can throw P1564 from clockspring chafe.
Estimated repair$80 to $400.
Look up another code
More free tools