DTC P0351-P0356, P2300, P2301, P2303, P2304, P2306, P2307, P2309, P2310, P2312, P2313, P2315, or P2316 (LAU)
| DTC P0351-P0356, P2300, P2301, P2303, P2304, P2306, P2307, P2309, P2310, P2312, P2313, P2315, or P2316 (LAU) |
| Diagnostic Instructions |
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Perform the
Diagnostic System Check - Vehicle
prior to using this diagnostic procedure.
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Review
Strategy Based Diagnosis
for an overview of the diagnostic approach.
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Diagnostic Procedure Instructions
provides an overview of each diagnostic category.
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| DTC Descriptors |
DTC P0351
Ignition Coil 1 Control Circuit
DTC P0352
Ignition Coil 2 Control Circuit
DTC P0353
Ignition Coil 3 Control Circuit
DTC P0354
Ignition Coil 4 Control Circuit
DTC P0355
Ignition Coil 5 Control Circuit
DTC P0356
Ignition Coil 6 Control Circuit
DTC P2300
Ignition Coil 1 Control Circuit Low Voltage
DTC P2301
Ignition Coil 1 Control Circuit High Voltage
DTC P2303
Ignition Coil 2 Control Circuit Low Voltage
DTC P2304
Ignition Coil 2 Control Circuit High Voltage
DTC P2306
Ignition Coil 3 Control Circuit Low Voltage
DTC P2307
Ignition Coil 3 Control Circuit High Voltage
DTC P2309
Ignition Coil 4 Control Circuit Low Voltage
DTC P2310
Ignition Coil 4 Control Circuit High Voltage
DTC P2312
Ignition Coil 5 Control Circuit Low Voltage
DTC P2313
Ignition Coil 5 Control Circuit High Voltage
DTC P2315
Ignition Coil 6 Control Circuit Low Voltage
DTC P2316
Ignition Coil 6 Control Circuit High Voltage
| Diagnostic Fault Information |
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
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Ignition Voltage - Bank 1
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P0300-P0306, P2300, P2306, P2312
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P0300-P0306, P0351, P0353, P0355
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-
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P0300, P0301, P0303, P0305
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Ignition Voltage - Bank 2
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P0300-P0306, P2303, P2309, P2315
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P0300-P0306, P0352, P0354, P0356
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-
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P0300, P0302, P0304, P0306
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Ignition Coil 1 Control Circuit
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P2300
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P0301, P0351
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P2301
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P0300, P0301
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Ignition Coil 2 Control Circuit
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P2303
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P0302, P0352
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P2304
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P0300, P0302
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Ignition Coil 3 Control Circuit
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P2306
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P0303, P0353
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P2307
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P0300, P0303
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Ignition Coil 4 Control Circuit
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P2309
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P0304, P0354
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P2310
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P0300, P0304
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Ignition Coil 5 Control Circuit
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P2312
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P0305, P0355
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P2313
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P0300, P0305
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Ignition Coil 6 Control Circuit
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P2315
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P0306, P0356
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P2316
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P0300, P0306
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Low Reference
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-
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P0351, P0352, P0353, P0354, P0355, P0356
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-
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-
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| Circuit/System Description |
The ignition system on this engine uses individual ignition coils and ignition control (IC) circuits for each cylinder. Ignition voltage is supplied to each bank of ignition coils. The engine control module (ECM) controls the ignition system operation. The ECM controls each coil using the IC circuits. The ECM commands the IC circuit low when a spark event is requested.
The sequencing and timing are ECM controlled.
| Conditions for Running the DTC |
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The engine is operating.
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The ignition voltage is between 10-18 V.
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Engine speed is between 400-5,000 RPM.
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The DTCs run continuously once per crankshaft revolution after the above conditions are met for 20 crankshaft revolutions.
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| Conditions for Setting the DTC |
P0351-P0356
The ECM detects the ignition control circuit is open for greater than 4 seconds or a cumulative of 30 seconds.P2300, P2303, P2306, P2309, P2312, or P2315
The ECM detects the ignition control circuit is shorted to ground for greater than 4 seconds or a cumulative of 30 seconds.P2301, P2304, P2307, P2310, P2313, or P2316
The ECM detects the ignition control circuit is shorted to voltage for greater than 4 seconds or a cumulative of 30 seconds.| Action Taken When the DTC Sets |
DTCs P0351, P0352, P0353, P0354, P0355, P0356, P2300, P2301, P2303, P2304, P2306, P2307, P2309, P2310, P2312, P2313, P2315, and P2316 are Type B DTCs.
| Conditions for Clearing the DTC |
DTCs P0351, P0352, P0353, P0354, P0355, P0356, P2300, P2301, P2303, P2304, P2306, P2307, P2309, P2310, P2312, P2313, P2315, and P2316 are Type B DTCs.
| Diagnostic Aids |
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Inspect the ignition coils for aftermarket devices. An aftermarket device connected to the ignition coil circuits, may cause this DTC to set.
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If the condition is intermittent, moving the related harnesses and connectors, with the engine operating, while monitoring the appropriate cylinder parameter for misfires using a diagnostic tool. This can help isolate the problem.
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| Reference Information |
Schematic Reference
Engine Controls Schematics
Connector End View Reference
Component Connector End Views
Description and Operation
Electronic Ignition System Description
Electrical Information Reference
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Circuit Testing
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Connector Repairs
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Testing for Intermittent Conditions and Poor Connections
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Wiring Repairs
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DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Scan Tool Reference
Control Module References for scan tool information
| Circuit/System Verification |
| 1. |
Operate the engine for 30 seconds. Observe the DTC Info with a scan tool. DTCs P0351, P0352, P0353, P0354, P0355, P0356, P2300, P2301, P2303, P2304, P2306, P2307, P2309, P2310, P2312, P2313, P2315, or P2316 must not be activated.
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| 2. |
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.
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| Circuit/System Testing |
| 1. |
Ignition OFF, disconnect the harness connector at the appropriate T8 ignition coil.
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| 2. |
Ignition OFF, all vehicle systems OFF, it may take up to 2 minutes for all the systems to power down, test for less than 5 Ω between the ground circuit terminal A and ground.
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| 3. |
If greater than the specified range, repair the ground circuit for an open/high resistance.
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| 4. |
Ignition OFF, test for less than 5 Ω between the low reference circuit terminal B and ground.
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| 5. |
If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the ECM.
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| 6. |
Ignition ON, verify that a test lamp illuminates between the ignition voltage circuit terminal D and ground.
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| 7. |
If the test lamp does not illuminate, test the ignition voltage circuit for a short to ground or an open/high resistance. If the circuit tests normal and the ignition voltage circuit fuse is open, test all components connected to the ignition voltage circuit and replace as necessary.
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| 8. |
Engine running, observe the Ignition Coil 1-6 Control Circuit Low Voltage Test Status on the scan tool. Test Status should be Ok or Not Run.
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| 9. |
If test status is Malfunction test for open or short to ground.
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| 10. |
Engine running, observe the Ignition Coil 1-6 Control Circuit Open Test Status on the scan tool. Test Status should be Ok or Not Run.
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| 11. |
If test status is Malfunction, test for an open circuit.
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| 12. |
Engine running, observe the Ignition Coil 1-6 Control Circuit High Voltage Test Status on the scan tool. Test Status should be Ok or Not Run.
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| 13. |
If test status is Malfunction test for short to voltage.
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| 14. |
If all circuits test normal, test or replace the appropriate T8 ignition coil.
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| Repair Instructions |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
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Ignition Coil Replacement - Bank 1
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Ignition Coil Replacement - Bank 2
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Control Module References
for Engine Control Module replacement, setup, and programming
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