Operation CHARM: Car repair manuals for everyone.
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Results of Incorrect Operation

An Ignition control circuit that is open, grounded, or shorted to voltage will set an ignition control circuit DTC. If a fault occurs in the IC output circuit when the engine is running, the engine will experience a misfire. DTCs P0351-P0358 indicate that the PCM detects a short to ground on an Ignition Control circuit. DTCs P1359 or P1360 will set when the PCM detects an open, a short to voltage on an IC circuit(s) that involve a cylinder group (i.e., cylinders 1/4/6/7 or 2/3/5/8). It both DTC P1359 and P1360 set, the most likely cause is a disconnected ignition coil cassette harness connector. An IC circuit shorted to voltage results in a loss of two cylinders within the specific cylinder group. For example, if the IC circuit for cylinder 1 is shorted to voltage, a loss of both IC circuits for cylinder 1 and cylinder 7 will occur.