When the igniter (ignition control module) on your 1992, 1993, 1994, or 1995 2.2L Toyota Camry fails, the engine is not gonna' start due a lack of spark.
In this tutorial, I'm gonna' explain how to test the igniter (ignition control module) and the two crankshaft positions sensors inside the distributor.
You don't need any exotic or expensive diagnostic test equipment to follow the test steps in this tutorial.
Contents of this tutorial at a quick glance:
- Symptoms of Bad Igniter.
- Test The Ignition Coil First.
- Igniter Circuit Descriptions.
- TEST 1: Making Sure The Igniter Is Getting Power.
- TEST 2: Making Sure The Igniter Is Getting Ground.
- TEST 3: Testing The Igniter Control Signal.
- TEST 4: Testing Camshaft Position Sensor 1.
- TEST 5: Testing Camshaft Position Sensor 2.
- Where To Buy The Igniter (Ignition Control Module).
You can find this tutorial in Spanish here: Cómo Probar El Módulo De Encendido 1992-1995 2.2L Toyota Camry (at: autotecnico-online.com).
Symptoms of Bad Igniter
The Igniter (which is another name for the ignition control module) is the component that activates the ignition coils sitting on top of the engine's valve cover. When this bad boy fails, your Toyota Tercel is not gonna' start due to a lack of spark (at all four cylinders).
What gives away the igniter as defective, when testing it, is the fact that it's getting battery power, ground, and it's two igniter control signals from the fuel injection computer but it does not activate the ignition coils to fire spark away.
Test The Ignition Coil First
Before you start your igniter diagnostic, you should first test the ignition coil and see if it's sparking (or not) and see if it's being activated by the igniter (or not).
In other words, if the ignition coil is getting the ignition control signal from the igniter (even thought the car doesn't start), then the igniter is functioning correctly and not behind your Camry's no start condition.
Testing the ignition coil is not hard at all and I've written a 'how to' test the 1992-1995 2.2L Toyota Camry ignition coil tutorial that'll help you do it. You can find it here: How To Test The Ignition Coil (1992-1995 2.2L Camry)
Igniter Circuit Descriptions
The Igniter (ignition control module) has 5 wires coming out of its connector. Each one has a specific job to do and here's a brief description of each:
NOTE: To further help you in your diagnostic tests, you can find the 1992-1995 2.2L Toyota Camry ignition system wiring diagram here: Ignition System Wiring Diagram 1994 2.2L Toyota Camry.
|1992-1995 2.2L Camry igniter Connector|
|1||White with red stripe||IGF -Ignition coil firing feedback signal|
|2||White||IGT -igniter control signal|
|3||White with red stripe||Bat + -Battery power|
|4||Black||IG- -Tachometer signal|
|5||Light green||IGC -Ignition coil control signal|
NOTE: The Igniter harness connector has female metal terminals. You'll need to use a back probe or a wiring piercing probe to test the signals in the wires.