INSPECTION PROCEDURE 9: A/C pressure sensor system: Diagnosis

WARNING: This page is about a different car, the 2014 Mitsubishi Outlander. However, it is still accessible from the selected car via links, so may be relevant.

STEP 1. Inspection of the A/C pressure sensor
Refer to SIMPLE INSPECTION OF THE A/C PRESSURE SENSOR .

Q: Is the A/C pressure sensor normal?
1. YES: Go to Step 2.
2. NO: Replace the A/C pressure sensor.
STEP 2. Check open circuit in AC/P, BVSE & ACPE and BVS5 & ACP5 line between A/C pressure sensor connector and engine control module connector.
Q: Is the check result normal?
1. YES: Go to Step 3.
2. NO: Repair the connector(s) or wiring harness.
STEP 3. Check the data list below on the scan tool (M.U.T.-III).
All the following items in the data list should be normal.

Item No.61: Pressure sensor

Q: Is the check result normal?
1. YES: Go to Step 4.
2. NO: Replace the heater controller assembly (A/C-ECU).
STEP 4. Retest the system.
Q: Is the check result normal?
1. YES: Intermittent malfunction (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTION ).
2. NO: Replace the heater controller assembly (A/C-ECU).