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Home / Codes / P0336
DTC code page

P0336: Crankshaft Position Sensor A Circuit Range/Performance

Quick answer: The ECU is receiving a crankshaft signal, but its pattern or timing is not believable enough to trust.

Drivers also search this fault as crank sensor range performance, erratic crank signal code, crankshaft position sensor performance code.

Severity: high Family: powertrain Related paths: 11
Meaning

What P0336 usually means

P0336 means the crankshaft position signal exists but falls outside the range or pattern the ECU expects. That usually points to an erratic sensor, damaged reluctor wheel, excessive sensor gap, harness noise, or a mechanical issue that makes crank timing look unstable even though the circuit is not completely dead.

Fast triage

Start here before chasing parts

  • Scan first: save freeze-frame and pending codes before clearing anything.
  • Confirm the complaint: compare the stored code with current drivability symptoms.
  • Use context: trims, live data, and related codes usually narrow the fault faster than guesswork.
  • Work simplest to hardest: leaks, connectors, maintenance items, and known patterns before expensive components.
Initial checks

What to check first

  • Watch RPM during cranking and see whether the number drops out, spikes, or looks irrational.
  • Inspect the crank sensor mount and reluctor area if the engine recently had transmission, front-cover, or timing work.
  • Do not assume the sensor is dead just because the engine will not start cleanly; P0336 is often a quality problem, not a total-loss problem.
Driving risk

Can you keep driving?

P0336 can turn into a no-start or stall condition, so treat it with the same caution as other crank-signal faults.

High urgency: If symptoms are active, reduce driving and diagnose quickly before secondary damage builds.
Likely causes

Common causes behind this code

  • Crankshaft position sensor producing a distorted or unstable waveform
  • Tone ring or reluctor damage, wobble, or missing teeth
  • Incorrect sensor air gap or poor sensor mounting
  • Harness interference, rubbed wiring, or poor shielding
  • Mechanical timing or crankshaft movement issue that makes the signal implausible

Cause phrases often tied to this code: crank sensor gap, damaged tone ring, wiring noise, sensor mounting issue, timing variation.

Diagnostic order

Suggested workflow

  1. Capture freeze-frame and note whether the fault happens during cranking, hot restart, or while driving.
  2. Inspect the crank sensor connector, harness routing, and any obvious metal debris or damage near the tone ring.
  3. Verify RPM behavior during cranking and compare it with actual engine behavior.
  4. Scope the crank signal or otherwise verify waveform quality if basic checks do not explain it.
  5. Inspect reluctor alignment and mechanical timing context if the signal remains implausible.
Avoid guesswork

Common mistakes

  • Replacing the sensor without checking whether the reluctor wheel is damaged or misaligned.
  • Ignoring recent engine or transmission work that may have disturbed sensor gap or tone-ring position.
  • Treating P0336 like a simple no-signal code when the real problem is waveform quality.
Repair path

Practical fix guidance

  • Correct sensor mounting, wiring, or reluctor damage before clearing the code and hoping it stays gone.
  • After the repair, confirm stable RPM and reliable starts both hot and cold.
Vehicle context

Affected brands in this MVP

Brand hubs help broaden internal linking now and can evolve into make-specific diagnostic notes later.

Aliases and common searches

English phrases tied to P0336

Useful when the driver knows the wording but not the exact DTC yet.

  • crank sensor range performance
  • erratic crank signal code
  • crankshaft position sensor performance code
Related search intent

Queries this page can answer naturally

  • P0336 code meaning
  • what does P0336 mean
  • crank signal out of range
  • erratic RPM while cranking
FAQ

Quick questions about P0336

What is the difference between P0335 and P0336?

P0335 is usually a missing or failed crank circuit signal, while P0336 means a signal exists but its timing or shape is not believable.

Can a damaged reluctor wheel cause P0336?

Yes. Missing teeth, wobble, or incorrect alignment can make the crank waveform fail performance checks.

Can P0336 cause intermittent no-start?

Yes. If the signal becomes erratic only under heat, vibration, or certain RPM ranges, starting may fail only part of the time.