DLC Circuit Troubleshooting
  1. Check for continuity between ECM/PCM connector terminal A4 and body ground.
Is there continuity?
YES -
Update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM, then recheck. If the symptom/indication goes away with a known-good ECM/PCM, replace the original ECM/PCM. ■
NO -
Repair open in the wire between the ECM/PCM (A4) and DLC terminal No. 14.■
  1. Try to start the engine.
Does the engine start and idle smoothly?
YES -
Go to F-CAN circuit troubleshooting. ■
NO -
Go to Step 37 .
  1. Turn the ignition switch to LOCK (0).
  1. Check the No. 3 IG MAIN (50 A) fuse in the under-hood fuse/relay box.
Is the fuse OK?
YES -
Repair open in the wire between the No. 3 IG MAIN (50 A) fuse and the ignition switch. If the wire is OK, go to Step 39 .
NO -
Repair short in the wire between the No. 3 IG MAIN (50 A) fuse and the ignition switch. Also replace the No. 3 IG MAIN (50 A) fuse.■
  1. Inspect the No. 17 FI MAIN (15 A) fuse in the under-hood fuse/relay box.
Is the fuse OK?
YES -
Go to Step 46 .
NO -
Go to Step 40 .
  1. Remove the blown No. 17 FI MAIN (15 A) fuse from the under-hood fuse/relay box.