What does code P1351 mean?
When is the code detected? The Powertrain Control Module (PCM) detects an open in the Ignition Control Module (ICM) Possible symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1351 Gmc Description The Ignition Control Module (ICM) has independent power and ground circuits.
How do you test a Chevy ignition control module?
How to Check the GM Ignition Control Module
- 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.
What is Ignition Control Module?
The Ignition Control Module is a part of the ignition system. It manages the electrical current that is fed to the ignition coil in order for it to generate the right amount of voltage for the spark-plug to ignite the fuel mixture. In turn, the ignition control module sends the input to the ignition coil to fire it up.
Can you bypass a ignition Control Module?
To allow the ECU to take control of ignition timing it will “bypass” the ignitor and send the signal to the ECU for ignition timing processing. The ECU then sends a signal back to the ignitor with the ignition timing adjusted and then the ignitor module fires the coil.
How can you tell if your ignition control module is bad?
Signs of a Bad Ignition Module
- Acceleration Issues. The vehicle may shake, vibrate or jerk when the gas pedal is pressed. There may be hesitation or lack of power during increases in speed.
- Temperature Problems. A faulty ignition module can cause a vehicle to overheat.
- No Power. The engine may turn over without starting.
Does the ignition control module control fuel?
Does ignition module control fuel injectors? The ICM doesn’t control the injectors, but the ECM will not pulse them without a signal from the ICM. The ICM monitors the reluctor wheel on the distributor shaft and triggers the ignition coil at the proper moment to send spark out from the coil to the correct cylinder.
How do I know if my ignition control module is bad?
What happens when your ignition control module goes bad?
A faulty ignition module can affect ignition timing, resulting in an engine that misfires and runs rough. The engine may also run well at low speed, but won’t accelerate well. 3. Stalling: A failing ignition module can occasionally prevent the engine from getting spark, causing it to stall.
Does disconnecting battery reset ECU?
Will disconnecting battery reset ECU? Can a ECU be reset? Yes, all ECU (Engine Control units) can be reset and be should reset once per manufacturer’s guideline for a smooth relearn process or upon installing a replacement unit.
What is the p1351 ignition control module voltage?
P1351 – Ignition Control Module Circuit Voltage Trouble Code Fault Location P1351 Ignition Control Module Circuit Voltage
What does p1351 stand for in OBD II?
END OF SPECIAL NOTES. OBD II fault code P1351 is a manufacturer specific code that most carmakers define as “Ignition Control Module Circuit Voltage”, or sometimes as “Ignition Control Module Circuit High Voltage”.
When does the PCM set the code p1351?
Nonetheless, regardless of the cause of the problem, the PCM will set code P1351 and illuminate a warning light when it detects an abnormal voltage in the control circuit of the Ignition Control Module. The image below shows a much-simplified schematic of a typical DIS ignition system.
What are the common causes of p1351 failures?
Below are some common causes of P1351-. Damaged, burnt, shorted, disconnected, or corroded wiring and connectors. Open circuits. Defective/damaged Crankshaft Position Sensors. Defective/damaged Camshaft Position Sensors (Where applicable)