• | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
• | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
• | Diagnostic Procedure Instructions provides an overview of each diagnostic category |
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
---|---|---|---|---|
Ignition 1 Voltage | P0261, P0264, P0267, P0270, P0273, P0276, P0300-P0306 | P0300-P0306 | -- | P0300-P0306 |
Ignition Coil 1 Control Circuit | P2300 | P0351 | P2301 | P0300, P0301 |
Ignition Coil 2 Control Circuit | P2303 | P0352 | P2304 | P0300, P0302 |
Ignition Coil 3 Control Circuit | P2306 | P0353 | P2307 | P0300, P0303 |
Ignition Coil 4 Control Circuit | P2309 | P0354 | P2310 | P0300, P0304 |
Ignition Coil 5 Control Circuit | P2312 | P0355 | P2313 | P0300, P0305 |
Ignition Coil 6 Control Circuit | P2315 | P0356 | P2316 | P0300, P0306 |
The ignition system on this engine uses individual ignition coils and ignition control (IC) circuits for each cylinder. Ignition 1 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.
• | The engine is operating. |
• | The ignition 1 voltage is between 10.5-18 volts. |
• | The engine speed is between 1,400-5,000 RPM. |
• | The DTCs run continuously once the above condition is met for more than 1 second. |
The ECM detects the ignition control circuit is open.
The ECM detects the ignition control circuit is shorted to ground.
The ECM detects the ignition control circuit is shorted to voltage.
DTCs P0351, P0352, P0353 P0354, P0355, P0356, P2300, P2301, P2303, P2304, P2306, P2307, P2309, P2310, P2312, P2313, P2315 and P2316 are type B DTCs.
DTCs P0351, P0352, P0353 P0354, P0355, P0356, P2300, P2301, P2303, P2304, P2306, P2307, P2309, P2310, P2312, P2313, P2315 and P2316 are type B DTCs.
Inspect the ignition coils for aftermarket devices. An aftermarket device connected to the ignition coil circuits, may cause this DTC to set.
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Operate the engine above 1400 RPM for 15 seconds, observe the DTC information with a scan tool. DTCs P0351, P0352, P0353 P0354, P0355, P0356, P2300, P2301, P2303, P2304, P2306, P2307, P2309, P2310, P2312, P2313, P2315 and P2316 should not set.
⇒ | If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance. If the circuit tests normal and the ignition circuit fuse is open, test the IC circuit terminal for a short to ground. |
⇒ | If less than 3 Hz, test the ignition control circuit for a short to voltage, short to ground or an open/high resistance. If the circuit/connection test normal, replace the ECM. |
⇒ | If greater than 5 ohms, test for an open, or high resistance in the ground circuits. If the circuit/connections test normal, replace the ECM. |
Perform the Diagnostic Repair Verification.
• | Engine Control Module Replacement for engine control module replacement, setup and programming. |