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• When Monitored: • Set Condition: Possible Causes (K343) ASD RELAY OUTPUT 2 CIRCUIT (K10) COIL CONTROL NO.6 CIRCUIT OPEN (K10) COIL CONTROL NO.6 CIRCUIT SHORTED TO GROUND SPARK PLUG COIL ON PLUG PCM Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE - Diagnostic Test 1. ACTIVE DTC Ignition on, engine not running. With a scan tool, read DTCs. Is the DTC active at this time? Yes >> Go To 2 No >> Go To 9 Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE) 2. Secondary Spark NOTE: Inspect the ignition coil for damage, carbon tracking on the coil or a damaged spark plug insulator Remove the ignition coil. NOTE: 6.1L coils must have a spark tester installed on both sides of the coil during the following test. Dur- NOTE: On the 2.7 and 3.5L engines, cylinders 1, 3 and 5, it is necessary to remove the upper intake to NOTE: A crisp blue spark that is able to jump the gap of the spark tester should be generated. Is good spark generated? Yes >> Ensure the cylinder is operating properly. If OK, replace the Spark Plug. Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE) No >> Go To 3 9 - 896 ENGINE ELECTRICAL DIAGNOSTICS LX |