Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSTOYOTA2000TACOMA REGULAR CAB 2WD L4-2.4L (2RZ-FE)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTRELAYS AND MODULES - POWERTRAIN MANAGEMENTRELAYS AND MODULES - IGNITION SYSTEMIGNITION CONTROL MODULETESTING AND INSPECTION
2000 Toyota Tacoma Regular Cab 2WD L4-2.4L (2RZ-FE)
Ignition Control Module: Testing and Inspection
2000 Toyota Tacoma Regular Cab 2WD L4-2.4L (2RZ-FE)SECTION Testing and Inspection
ON-VEHICLE INSPECTION
NOTE: "Cold" and "Hot" in these sentences express the temperature of the coils themselves. "Cold" is from -10 °C (14 °F) to 50 °C (122 °F) and "Hot" is from 50 °C (122 °F) to 100 °C (212 °F).
INSPECT IGNITION COIL WITH IGNITOR AND SPARK TEST
Check that the spark occurs.
1. Remove the ignition coils.
2. Remove the spark plugs.
3. Install the spark plugs to each ignition coil, and connect the ignition coil connector.
4. Ground the spark plug.
5. Check if spark occurs while engine is being cranked.
NOTE: To prevent gasoline from being injected from injectors during this test, crank the engine for no more than 1 - 2 seconds at time.
If the spark does not occur, do the test as per the flow chart.
NOTE: "Cold" and "Hot" in these sentences express the temperature of the coils themselves. "Cold" is from -10 °C (14 °F) to 50 °C (122 °F) and "Hot" is from 50 °C (122 °F) to 100 °C (212 °F).
INSPECT IGNITION COIL WITH IGNITOR AND SPARK TEST
Check that the spark occurs.
1. Remove the ignition coils.
2. Remove the spark plugs.
3. Install the spark plugs to each ignition coil, and connect the ignition coil connector.
4. Ground the spark plug.
5. Check if spark occurs while engine is being cranked.
NOTE: To prevent gasoline from being injected from injectors during this test, crank the engine for no more than 1 - 2 seconds at time.
If the spark does not occur, do the test as per the flow chart.
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.