How do you test a Chevy ignition control module?
If your GM vehicle has a slow or hard start, the ignition control module should be tested with an electrical test light.
- Open the hood of the GM vehicle. Locate the ignition module.
- Connect the positive test light lead to the ignition module signal wire.
- Ask a partner to crank the engine numerous times.
Where is ignition control module located?
distributor housing
Typically the Ignition Control Module is located inside of the distributor housing or mounted on the side of the engine compartment.
How do you test a HEI ignition control module?
How do I test my HEI module?
- Test for power at the pink BAT terminal. You should have battery voltage w/ the key in the start and RUN positions.
- Connect the ground side of your test lamp to the battery POSITIVE cable.
- Remove the cap & rotor.
- DVOM (meter) still connected to green & white leads.
What causes a Chevrolet ignition module to fail?
Chevrolet Ignition Module. Ignition module failure is no joke because it often leaves you stranded. The complaint is the engine cranks normally, but does not start. The cause of an ignition control module failure is often associated with age and damage from heat buildup.
When does an ignition module need to be replaced?
If the light blinks, the module is good. If the light is blank or constant, the module is bad. Before you attempt to replace the control module, you must rule out other ignition system components. The module is expensive and replacing it is a laborious process. Check the ignition coil for a spark.
How can I tell if my ignition module is bad?
Connect the timer to the positive terminal of the battery and check the continuity of the black output wire while cranking the starter. If the light blinks, the module is good. If the light is blank or constant, the module is bad. Before you attempt to replace the control module, you must rule out other ignition system components.
What was the ignition module on a 1993 GMC k1500?
1993 GMC K1500, K2500, K3500 Pick Up. All of the information you need to diagnose a no-start problem caused by the ignition module, or the ignition coil, or the distributor pickup coil. Wiring diagram. Component pin outs.