The P2313: Ignition Coil ‘E’ Primary Control Circuit High code indicates that the voltage in the primary control circuit of Ignition Coil ‘E’ is higher than expected. This condition may arise due to a malfunctioning ignition coil, faulty wiring that leads to excessive resistance, or issues with connectors. High voltage in this circuit can cause misfires, irregular ignition timing, and damage to ignition system components.
P2313 – Quick Overview
Code | Information |
---|---|
Meaning | P2313: Ignition Coil ‘E’ Primary Control Circuit High |
Is it serious? | Yes, high voltage can cause irregular ignition timing, misfires, and possible damage to the ignition coil, spark plugs, and even the ECM. Immediate attention is recommended to avoid damage. |
Possible causes | – High voltage in the ignition coil ‘E’ primary control circuit – Faulty ignition coil or wiring issues – Connector problems |
How to diagnose? | – Measure voltage in the ignition coil ‘E’ primary control circuit – Inspect and test the ignition coil and wiring – Check connectors for faults |
P2313 Meaning
The P2313: Ignition Coil ‘E’ Primary Control Circuit High code means that the voltage in the primary circuit of Ignition Coil ‘E’ is exceeding acceptable limits set by the ECM. This could be caused by a damaged ignition coil, faulty wiring, or poor connections. Such excessive voltage may lead to erratic ignition, misfires, or even damage to the coil and associated components if not addressed promptly.
Step-by-step diagnostic guide
Action | Description | Tools Needed |
---|---|---|
Check for Other Codes | Use an OBD-II scanner to check for additional fault codes. Related codes can provide further insight into issues with ignition, power supply, or ECM-related faults. | OBD-II Scanner |
Measure Voltage in Ignition Coil ‘E’ Primary Circuit | Use a multimeter to measure the voltage in the primary control circuit of Ignition Coil ‘E’. Compare these readings to manufacturer specifications to verify if the voltage is too high. | Multimeter |
Inspect Ignition Coil ‘E’ | Visually inspect Ignition Coil ‘E’ for any signs of physical damage, including cracks, burns, or melting. Damaged components can lead to irregular or high voltage levels. | Flashlight, Safety Gloves |
Test Ignition Coil ‘E’ | Use an ohmmeter to measure the internal resistance of Ignition Coil ‘E’. Verify that the resistance is within the manufacturer’s specifications to determine if the coil is functioning properly. | Ohmmeter, Coil Tester |
Inspect Wiring Leading to Coil ‘E’ | Examine the wiring for frayed insulation, burned areas, or other signs of damage that could cause a high resistance or short to voltage. Damaged wiring can result in excessive voltage in the circuit. | Flashlight, Multimeter |
Check Connectors for Faults | Inspect all connectors associated with Ignition Coil ‘E’. Ensure the connectors are clean, free of corrosion, and properly seated. Loose or dirty connectors can contribute to voltage spikes. | Connector Cleaner, Flashlight |
Verify Grounding of the Ignition Coil | Ensure that the ignition coil has a good ground connection. A poor ground can cause improper current flow, leading to excessive voltage buildup. Clean and secure the ground connection. | Multimeter, Hand Tools |
Verify Signal from ECM to Ignition Coil | Use a diagnostic tool to check the control signal being sent from the ECM to Ignition Coil ‘E’. Ensure the ECM is not sending excessive voltage or incorrect signals that could lead to over-voltage. | Diagnostic Tool |
Replace Faulty Components if Necessary | Replace any faulty ignition coils, connectors, or wiring with OEM components to ensure proper operation and prevent further damage to the system. | Replacement Parts, Hand Tools |
Clear the Code and Test Drive | After completing repairs, clear the P2313 code using an OBD-II scanner. Start and drive the vehicle to monitor the ignition system and verify that no issues are present during operation. | OBD-II Scanner, Vehicle Owner’s Manual |
Recheck for Codes | After the test drive, re-scan the vehicle to verify that the P2313 code has not returned. If the code reappears, further diagnostics may be necessary to investigate potential ECM issues or persistent faults in the ignition circuit. | OBD-II Scanner |

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Hi, I am Juraj “Yuri” Lukacko. I got frustrated by unhelpful and scammy mechanics, so I decided to learn everything about car diagnostics myself. I test dozens of new car diagnostic tools every month along with learning new strategies to fix and customize cars. About Juraj Lukacko (Yuri)