P2307
DTC P2301, P2304, P2307, or P2310
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (Initial Inspection and Diagnostic Overview) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Initial Inspection and Diagnostic Overview) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Initial Inspection and Diagnostic Overview) provides an overview of each diagnostic category.
DTC Descriptors
DTC P2301
- Ignition Coil 1 Control Circuit
DTC P2304
- Ignition Coil 2 Control Circuit
DTC P2307
- Ignition Coil 3 Control Circuit
DTC P2310
- Ignition Coil 4 Control Circuit
Diagnostic Fault Information
Circuit/System Description
The ignition system consists of one integrated and sealed ignition coil/module assembly for the 4 cylinders. The engine control module (ECM) controls the individual coils by transmitting timing pulses on the ignition control (IC) circuit of each ignition coil to enable a spark event. When the engine is running the ECM monitors each IC circuit for improper voltage levels. The ignition coil/module assembly has the following circuits:
* An ignition voltage circuit
* A ground
* An IC circuit for each coil
Conditions for Running the DTCs
* DTC P0340, P0341, P0365, or P0366 is not set.
* The engine coolant temperature (ECT) is warmer than -30°C (-22°F).
* The engine is running.
* The ignition 1 voltage signal is greater than 10 volts.
* These DTCs run continuously within the enabling conditions.
Conditions for Setting the DTCs
The ECM detects a short to voltage on an IC circuit for greater than 2 seconds.
Action Taken When the DTC Sets
DTCs P2301, P2304, P2307, P2310 are Type B DTCs.
Conditions for Clearing the MIL/DTC
DTCs P2301, P2304, P2307, P2310 are Type B DTCs.
Reference Information
Schematic Reference
Engine Controls Schematics (Electrical Diagrams)
Connector End View Reference
Component Connector End Views (Connector Views)
Electrical Information Reference
* Circuit Testing (Component Tests and General Diagnostics)
* Connector Repairs (Component Tests and General Diagnostics)
* Testing for Intermittent Conditions and Poor Connections (Component Tests and General Diagnostics)
* Wiring Repairs (Component Tests and General Diagnostics)
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions (Diagnostic Trouble Code Descriptions)
Scan Tool Reference
Control Module References (Programming and Relearning) for scan tool information
Circuit/System Verification
* Start and idle the engine.
* Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
Circuit/System Testing
1. Determine the cylinder that is misfiring.
2. Ignition OFF, disconnect the harness connector at the ignition coil/module assembly.
3. Ignition ON, verify that a test lamp does not illuminate between ground and the affected IC circuit terminal listed below:
* IC 1 circuit: terminal 6
* IC 2 circuit: terminal 5
* IC 3 circuit: terminal 4
* IC 4 circuit: terminal 3
• If the test lamp illuminates, test the IC circuit for a short to voltage. If the circuit tests normal, replace the ECM.
4. If the circuits test normal, replace the ignition coil/module assembly.
Repair Instructions
* Ignition Coil Replacement (Service and Repair)
* Control Module References (Programming and Relearning) for ECM replacement, setup, and programming
Repair Verification
If the customer concern was a flashing MIL, perform the following procedure:
1. Install any components that have been removed or replaced during diagnosis.
2. Perform any adjustments, programming, or setup procedures that are required when a component is removed or replaced.
3. Clear the DTCs.
4. Turn OFF the ignition for 60 seconds.
5. If the repair was related to a DTC, duplicate the Conditions for Running the DTC and use the Freeze Frame/Failure Records, if applicable, in order to verify the DTC does not reset. If the DTC resets or another DTC is present, refer to the Diagnostic Trouble Code (DTC) List - Vehicle (Diagnostic Trouble Code Descriptions) and perform the appropriate diagnostic procedure.
6. To verify that the performance of the catalytic converter has not been affected by the condition that set this DTC, perform the Repair Verification for DTC P0420. Refer to DTC P0420 (P0420) .