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6E–412 6VE1 3.5 ENGINE DRIVEABILITY AND EMISSIONS D Poor connection at PCM-Inspect harness connectors D Damaged harness-Inspect the wiring harness for A change in the display will indicate the location of If it is determined that the DTC occurs intermittently, DTC P1312 - ION Sensing Module SEC Line 2 Circuit Fault
Step Action Value(s) Yes No 1 Was the “On-Board (OBD) System Check” performed? — Go to Step 2 Go to OBD System Check 2 1. Ignition “ON”, engine “OFF”. conditions as noted. 4. Using a Tech 2, monitor “DTC” info for DTC P1312. Does the Tech 2 indicate DTC P1312 failed this — Go to Step 3 Check the Procedure Refer to Diagnostic Aids 3 1. Ignition “OFF”. Is the action complete? — Go to Step 4 Go to Step 3 4 Check the ION Sensing module harness between the Was a problem found? — Verify repair Go to Step 5 5 1. Disconnect the ignition coil. Is the action complete? — Go to Step 6 Go to Step 5 6 Check the ION Sensing module harness between the Was a problem found? — Verify repair Go to Step 7 7 Check the following items; 1. Ignition coil and ignition coil circuit. necessary. Was a problem found? — Verify repair Go to Step 8 8 Replace the Ignition coil. Is the action complete? — Verify repair Go to Step 9 9 Check the following items; 1. ION Sensing module ground circuit for a poor connection. 2. If a problem is found, repair wiring harness as necessary. Was a problem found? — Verify repair Go to Step 10 |