What is the crank sensor signal on an ICM?
The crank sensor signal is an On/Off type of signal that can be measured with a multimeter or an LED Light. The crank sensor signal is also called the ‘triggering signal’ in this article. As soon as the ICM gets the crank sensor signal, it starts activating the ignition coils sitting atop of it.
Which is CKP signal does the GM 3.8L ignition module use?
One CKP sensor is called the 3X CKP Sensor and the signal it creates is called the Sync 3X CKP Signal and the other one is called the 18X CKP and its signal the Crank 18X CKP Signal. As stated before, both of these signals are critical for the ignition control module to start the car (to start sparking the ignition coils).
How can you tell if ignition control module is good?
Because the clearest indication that the ignition control module and the crankshaft position sensor are good is if there’s spark coming from all of the spark plug wires. So if you haven’t checked, stop now and do a spark test on all of the spark plug wires.
How to diagnose no spark GM 3.8L?
For a list of all of the 3.8L articles in this site, check out the index: GM 3.8L Index Of Articles. You can find this tutorial in Spanish here: Cómo Probar El Módulo de Encendido y Sensor del Cigüeñal GM 3.8L (at: autotecnico-online.com ). Here is a little background information to help you diagnose this no spark condition.
The crank sensor signal is an On/Off type of signal that can be measured with a multimeter or an LED Light. The crank sensor signal is also called the ‘triggering signal’ in this article. As soon as the ICM gets the crank sensor signal, it starts activating the ignition coils sitting atop of it.
Because the clearest indication that the ignition control module and the crankshaft position sensor are good is if there’s spark coming from all of the spark plug wires. So if you haven’t checked, stop now and do a spark test on all of the spark plug wires.
One CKP sensor is called the 3X CKP Sensor and the signal it creates is called the Sync 3X CKP Signal and the other one is called the 18X CKP and its signal the Crank 18X CKP Signal. As stated before, both of these signals are critical for the ignition control module to start the car (to start sparking the ignition coils).
For a list of all of the 3.8L articles in this site, check out the index: GM 3.8L Index Of Articles. You can find this tutorial in Spanish here: Cómo Probar El Módulo de Encendido y Sensor del Cigüeñal GM 3.8L (at: autotecnico-online.com ). Here is a little background information to help you diagnose this no spark condition.