DTC Troubleshooting: P0135 (41)
  1. Check for continuity between under-hood fuse/relay box connector D (20P) terminal No. 20 and ECM connector terminal A21.
Is there continuity?
YES -
Go to Step 28 .
NO -
Repair open in the wire between the ECM (A21) and the under-hood fuse/relay box, then go to Step 22 .
  1. Disconnect the under-hood fuse/relay box connector D (20P).
  1. Disconnect the A/F sensor (Sensor 1) 4P connector.