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Genuine Toyota Sienna Igniter
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Toyota Sienna Igniter Assembly
Part Number: 89621-41010$491.26 MSRP: $732.85You Save: $241.59 (33%)Ships in 1-3 Business Days
Toyota Sienna Igniter
The Toyota Sienna Igniter is the solid-state switch that rapidly opens and closes the ignition coil circuit, causing the high voltage surge that ignites the air fuel mixture. This miniature device, powered by battery through ignition relay, interrupts coil current. As a result, the collapsing magnetic field steps voltage up to as much as 40,000 volts for cleaner combustion, more power, and less pollution. The early Toyota Sienna models applied an electronic distributor containing a standalone Igniter mounted inside or next to the distributor that teamed with a pickup coil or hall sensor while mechanical vacuum and centrifugal parts handled spark advance. Subsequent iterations of this device supplanted its predecessor, which utilized a distributor for triggering the ignition. In a distributor-free ignition system, the Igniter function can be integrated into the engine computer. The engine computer in turn fires individual coils based on crystal clear crankshaft position data. As a result, ignition timing becomes fully automatic and non-adjustable. When the coil switching fails, the engine simply cranks over. A quick relay click test and flicker test light can quickly isolate the fault to the Igniter. Using simple hand tools, the unit is swapped over in a quick job that keeps the Igniter happy. It also gives Toyota engines the spark precision they were built for. Chiefly importantly, every Sienna stays on the road.
If you are in demand for superior quality and affordable OEM Toyota Sienna Igniter, then shop with us! We own a wide range of the reduced-priced genuine Toyota Sienna Igniter. You can purchase in confidence as all parts come with a manufacturer's warranty. Any issues with our products? No need to worry as we have a hassle-free return policy to guide you every step of the way.
Toyota Sienna Igniter Parts Questions & Experts Answers
- Q: How to check the ignition system and diagnose a bad igniter on Toyota Sienna?A:The following procedure does not apply to the integral Ignition Coil/igniter units used on 2001 and later models, as testing the igniter function of these units is beyond the scope of the home mechanic. You can check the ignition confirmation signal of each igniter, but identifying a bad igniter is simply a process of elimination. If you suspect a bad igniter on one of these models, have the ignition coil/igniter unit tested by a dealer service department or a qualified repair shop. When performing the following checks, disconnect the electrical connector from the igniter and conduct electrical checks at the igniter harness connector with the ignition switch On. Check for battery voltage on terminal no. 9; if absent, check the circuit from the igniter to the battery. Check for approximately 5.0 volts at terminal no. 4; if not present, have the PCM checked by a dealership service department or other properly equipped repair facility. Check for a fluctuating 0.1 to 4.5 volt signal at terminal no. 5, 6, and 7 in turn while an assistant cranks the engine; if absent, have the PCM checked. Check for continuity to a good chassis ground at terminal no. 3. If the checks are good, turn the ignition switch Off and reconnect the electrical connector to the igniter. Next, disconnect the electrical connectors at each ignition coil and, using an LED test light, check for an ignition coil trigger signal at each ignition coil connector while an assistant cranks the engine. If no ignition coil trigger signal is present, check the circuits from the igniter to the ignition coils for continuity; if the circuits are good, replace the igniter.
