How to test the igniter function on Lexus ES300?

This guide doesn't apply to integral ignition coil/igniter units on 2000+ Avalon and 1999+ Lexus ES 300 models. Testing these units is complex and best left to professionals. You can check the ignition confirmation signal, but identifying a bad igniter is a process of elimination. If suspected, have it tested by a dealer or qualified repair shop. Start by disconnecting the igniter's electrical connector. Check for battery voltage on terminal no. 9, 5.0 volts at terminal no. 4, and a fluctuating 0.1 to 4.5 volt signal at terminals no. 5, 6, and 7 while the engine is cranked. Also, check for continuity to a good chassis ground at terminal no.If all checks are good, reconnect the igniter, disconnect the ignition coils, and check for an ignition coil trigger signal. If absent, check the circuits from the igniter to the coils. If circuits are good, replace the igniter.

Genuine Lexus ES300 Igniter

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Lexus ES300 IGNITER
Part Number: 89621-33010
$667.88 MSRP: $925.78
You Save: $257.90 (28%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Igniter Assy
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 1992-1994 Lexus ES300 | 6 Cyl 3.0L | 3VZFE; 3VZFE; VCV10L-BTMGKA, VCV10L-BTMGKK, VCV10L-BTPGKA, VCV10L-BTPGKK
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Lexus ES300 IGNITER
Part Number: 89621-35020
$528.60 MSRP: $732.70
You Save: $204.10 (28%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Igniter Assy
- Replaces: 89621-07010
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 1997-2001 Lexus ES300 | 6 Cyl 3.0L | 1MZFE; 1MZFE; MCV20L-BTPGKA, MCV20L-BTPGKK
View related parts
Lexus ES300 IGNITER
Part Number: 89621-33020
Product Specifications
- Other Name: Igniter Assy
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 1993-1996 Lexus ES300 | 6 Cyl 3.0L | 1MZFE; 1MZFE; MCV10L-BTPGKA, MCV10L-BTPGKK
View related parts
Lexus ES300 IGNITER
Part Number: 89621-35011
Product Specifications
- Other Name: Igniter Assy
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 1995-1996 Lexus ES300 | 6 Cyl 3.0L | 1MZFE; 1MZFE; MCV10L-BTPGKA, MCV10L-BTPGKK

Lexus ES300 Igniter

Should you need to purchase new auto parts for your vehicle, we strongly suggest you consider the genuine Lexus ES300 Igniter available on LexusPartsNow.com. Our OEM Lexus ES300 Igniter come with the reassurance of the manufacturer's warranty, a hassle-free return policy, and speedy delivery service, all at affordable prices online. Feel free to shop with confidence!

Lexus ES300 Igniter Parts Questions & Experts Answers

IGNITER
89621-35020
Q: How to test the igniter function on Lexus ES300?
A: This guide doesn't apply to integral Ignition Coil/igniter units on 2000+ Avalon and 1999+ Lexus ES 300 models. Testing these units is complex and best left to professionals. You can check the ignition confirmation signal, but identifying a bad igniter is a process of elimination. If suspected, have it tested by a dealer or qualified repair shop. Start by disconnecting the igniter's electrical connector. Check for battery voltage on terminal no. 9, 5.0 volts at terminal no. 4, and a fluctuating 0.1 to 4.5 volt signal at terminals no. 5, 6, and 7 while the engine is cranked. Also, check for continuity to a good chassis ground at terminal no.If all checks are good, reconnect the igniter, disconnect the ignition coils, and check for an ignition coil trigger signal. If absent, check the circuits from the igniter to the coils. If circuits are good, replace the igniter.