Table of Contents
- 1 How does a GM ignition Control Module work?
- 2 What does an ignition control module do?
- 3 Does the ignition control module control the fuel pump?
- 4 What happens if ignition switch goes bad?
- 5 What controls the ignition system?
- 6 What kind of ignition system does a GMC Suburban have?
- 7 What was the ignition module for a 1996 GMC c2500?
- 8 What kind of problem does a 1997 GMC pick up have?
How does a GM ignition Control Module work?
GM vehicles are equipped with an ignition control module. The ignition control module is responsible for turning the ignition coil on and off. This process allows spark plugs to light the gasoline vapors at specific times, allowing the GM engine to start once the ignition coil is signaled.
What does an ignition control module do?
The ignition module is responsible for firing the spark plugs. Each spark plug must fire at exactly the right time for the engine to run properly. The ignition module uses input from the crankshaft position sensor or camshaft position sensor to determine when to fire the spark plugs.
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.
Does the ignition control module control the fuel pump?
When the key is turned on, the powertrain control module (PCM) closes the fuel pump relay, which activates the fuel pump for about three seconds to pressurize the fuel injectors. When the engine starts, the CKP signals the PCM to keep the fuel pump and fuel delivery system running.
What happens if ignition switch goes bad?
If the ignition switch fails while the engine is operating it may cut off power to the ignition and fuel systems, which will cause the engine to stall. Depending on the exact issue, the vehicle may or may not be able to be restarted a short while later.
How do you test an ignition control module?
Connect the ground lead from the 12-volt test light to the negative terminal on the ignition coil. Have your partner crank the engine over several times. Your test light should flicker on and off. If so, your module is working properly and no further testing is necessary.
What controls the ignition system?
The ignition system is typically controlled by a key operated Ignition switch.
What kind of ignition system does a GMC Suburban have?
The typical ignition system circuit diagram for the 1992-1995 4.3L, 5.0L, and 5.7L 1500, 2500, 3500 Pick Up and Suburban can be found here: Ignition System Circuit Diagram (1992-1995 Chevy/GMC Pick Up And SUV). Testing the a no-start problem or a misfire due to an ignition system problem is not hard.
How to test a GMC ignition control module?
NOTE: Testing the ignition system is a breeze. This tutorial will help you test the ignition coil, ignition module, and the crankshaft position sensor: How To Test The GM Ignition Control Module (1995-2005).
What was the ignition module for a 1996 GMC c2500?
1996 GMC C1500, C2500, C3500 Pick Up. 1996 GMC K1500, K2500, K3500 Pick Up. All of the information you need to diagnose a misfire or a no-start problem (caused by the ignition coil, the ignition module, or the crankshaft position sensor).
What kind of problem does a 1997 GMC pick up have?
1997 GMC K1500, K2500, K3500 Pick Up. All of the information you need to diagnose a misfire or a no-start problem (caused by the ignition coil, the ignition module, or the crankshaft position sensor). Wiring diagrams.