Parts for your 2000 Toyota Bb-Crank angle sensor

2000 Toyota bB crank-angle sensor (crankshaft position sensor): what it does and how to look after it

Based on Toyota technical literature, the 2000 Toyota bB (NCP30/NCP31, 1NZ‑FE/2NZ‑FE) is fitted with a crank‑angle sensor (commonly called a crankshaft position or CKP sensor). This is shown in the Toyota Repair Manual for 1NZ‑FE/2NZ‑FE (1999–2005), the Toyota Electrical Wiring Diagram (EWD) for NCP30/NCP31 (2000 MY), and Toyota Electronic Parts Catalogue (EPC) listings for the same models. These sources depict a dedicated CKP sensor signal to the ECM and related diagnostics such as DTC P0335.

On the 2000 Toyota bB, the crank‑angle sensor is the ECM’s timekeeper. It tracks crankshaft speed and exact position so the engine computer can fire the coils and injectors at just the right moment, sync with VVT‑i, and keep idle smooth. When it’s healthy, cold starts are crisp, throttle response is clean, and fuel economy stays on point.

The sensor is mounted to the engine block and reads a toothed reluctor on the crankshaft. It’s not a scheduled service item, but it does appreciate a bit of care during routine servicing:

• Give the sensor connector and wiring a quick visual check for brittle insulation, oil contamination, or loose clips.
• Keep an eye out for oil leaks near the front or rear of the crankshaft—oil can wick into connectors and cause intermittent faults.
• If chasing a hard start, random stalling, misfire at low rpm, no‑start, or a dead tacho, scan for codes like P0335/P0336 and confirm live RPM during cranking.

Replacement is straightforward for a trained tech: disconnect the battery, unplug the connector, remove the retaining bolt, and withdraw the sensor. Most NZ‑series engines use a non‑adjustable sensor with the air gap set by design—so no shims or “by feel” tweaks. Fit the new unit with a clean O‑ring, route the loom as per clips, and tighten the bolt to the repair manual spec. Using a quality OEM‑equivalent part is worth it, poor‑quality sensors can give noisy signals that the ECM won’t love.

Testing is simple with the right gear: a scan tool should show stable cranking RPM, an oscilloscope or multimeter test can verify signal integrity and resistance against the repair manual spec. If in doubt between the crank and cam sensors, remember the crank sensor is the primary reference—when it drops out, the engine often won’t start at all.

Look after the basics—clean connections, no leaks, proper harness support—and the bB’s crank‑angle sensor will usually run happily for hundreds of thousands of kilometres.

• Where is the crank‑angle sensor on a 2000 Toyota bB?
  It’s mounted to the engine block facing a toothed wheel on the crankshaft. Access varies slightly by engine and ancillaries, but expect it low on the block with a short two‑wire loom to the ECM harness.
• What are the signs it’s failing?
  Hard starting or no‑start, intermittent stalling, uneven idle, poor fuel economy, and a lit check‑engine lamp. A scan tool may show DTCs like P0335 and zero RPM during cranking.
• Does it need periodic replacement?
  No scheduled interval. Replace only if faulty or damaged. During servicing, check the connector and nearby oil leaks to prevent future issues.

Popular questions about the 2000‑Toyota‑bB crank‑angle sensor

Is the 2000 Toyota bB safe to drive with a dodgy crank‑angle sensor?
If the sensor signal is intermittent, the engine may stall without warning. If there’s a no‑start or frequent stalling, it’s best not to drive and have it diagnosed promptly.

How long does replacement usually take?
With good access and the right tools, a workshop will often turn it around within an hour or so, plus time for fault code clearing and a road test.