DTC Troubleshooting: P2127 (37)
  1. Check for continuity between ECM connector terminal A18 and body ground.
Is there continuity?
YES -
Go to Step 13 .
NO -
Repair open in the wire between the ECM (A18) and APP sensor B, then go to Step 25 .
  1. Reconnect ECM connector A (44P).
  1. Connect a battery.