DTC Troubleshooting: P0533
  1. Check for continuity between A/C pressure sensor 3P connector terminal No. 3 and ECM connector terminal A10.
Is there continuity?
YES -
Go to Step 32 .
NO -
Repair open in the wire between the ECM (A10) and the A/C pressure sensor, then go to Step 24 .
  1. Turn the ignition switch to LOCK (0).
  1. Replace the A/C pressure sensor.
  1. Reconnect all connectors.
  1. Turn the ignition switch to ON (II).
  1. Reset the ECM with the HDS.
  1. Do the ECM idle learn procedure.
  1. Start the engine, and let it idle.
  1. Turn the blower switch on.
  1. Turn the A/C switch on.
  1. Check for Temporary DTCs or DTCs with the HDS.
Is DTC P0533 indicated?
YES -
Check for poor connections or loose terminals at the A/C pressure sensor and the ECM, then go to Step 1 .
NO -
Troubleshooting is complete. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.■
  1. Reconnect all connectors.
  1. Update the ECM if it does not have the latest software, or substitute a known-good ECM.
  1. Start the engine, and let it idle.
  1. Turn the blower switch on.
  1. Turn the A/C switch on.
  1. Check for Temporary DTCs or DTCs with the HDS.
Is DTC P0533 indicated?
YES -
Check for poor connections or loose terminals at the A/C pressure sensor and the ECM. If the ECM was updated, substitute a known-good ECM, then go to Step 34 . If the ECM was substituted, go to Step 1 .
NO -
If the ECM was updated, troubleshooting is complete. If the ECM was substituted, replace the original ECM. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.■