DTC Troubleshooting: P0653 (134)
  1. Check for continuity between ECM connector No. 2 terminal No. 1 and body ground.
Is there continuity?
YES -
Repair short in the wire between the A/C pressure sensor and ECM connector No. 2 terminal No. 1, No. 3 or No. 5, then go to Step 20 .
NO -
  • With DPF system: Go to Step 18 .
  • Without DPF system: Go to Step 24 .