DTC Troubleshooting: P0533 (191)
  1. Check for continuity between A/C pressure sensor 3P connector terminal No. 2 and ECM connector terminal A16.
Is there continuity?
YES -
Go to Step 32 .
NO -
Repair open in the wire between the ECM (A16) and the A/C pressure sensor, then go to Step 24 .
  1. Turn the ignition switch OFF.
  1. Jump the SCS line with the HDS.
  1. Disconnect ECM connector A (44P).