P1360
CIRCUIT DESCRIPTIONThere are 2 separate ignition module assemblies, with 1 assembly for each bank of cylinders. Each assembly contains an ignition control (IC) module and 4 ignition coils. Each IC module consists of the following circuits:
^ The ignition 1 voltage circuit
^ The ground circuit
^ The IC timing low reference circuit
^ The IC control circuits for cylinders 1-8
Each ignition coil connects directly to its spark plug via a short boot. The IC control circuits transmit timing pulses from the powertrain control (PCM) module to the IC modules, which trigger the coils to fire the plugs in the correct sequence. The PCM monitors each IC control circuit for improper voltage levels.
CONDITIONS FOR RUNNING THE DTC
The engine is running.
CONDITIONS FOR SETTING THE DTC
^ During PCM power-up, the PCM detects an open condition in the IC circuit group for the #2, the #3, the #5, and the #8 cylinders.
OR
The PCM detects a short to voltage condition in the IC circuit group for the #2, the #3, the #5, and the #8 cylinders.
^ The condition is present for less than 1 second.
ACTION TAKEN WHEN THE DTC SETS
^ The control module illuminates the malfunction indicator lamp (MIL) on the second consecutive ignition cycle that the diagnostic runs and fails.
^ The control module records the operating conditions at the time the diagnostic fails. The first time the diagnostic fails, the control module stores this information in the Failure Records. If the diagnostic reports a failure on the second consecutive ignition cycle, the control module records the operating conditions at the time of the failure. The control module writes the operating conditions to the Freeze Frame and updates the Failure Records.
CONDITIONS FOR CLEARING THE MIL/DTC
^ The control module turns OFF the malfunction indicator lamp (MIL) after 3 consecutive ignition cycles that the diagnostic runs and does not fail.
^ A current DTC, Last Test Failed, clears when the diagnostic runs and passes.
^ A history DTC clears after 40 consecutive warm-up cycles, if no failures are reported by this or any other emission related diagnostic.
^ Clear the MIL and the DTC with a scan tool.
DIAGNOSTIC AIDS
The Misfire Current Cyl # / Misfire History Cyl # displays on the scan tool provides information that may be useful in diagnosing DTC P1360. The Misfire Current Cyl # counter may normally display a small amount of activity, typically 0-10 counts. However, the display should not increment steadily. The Misfire History Cyl # counter will display a very large number for the circuits with the largest failure occurrence.
If the condition is intermittent, refer to Intermittent Conditions. Intermittent Conditions
TEST
