[ Model - ECLIPSE CROSS / Year - 2018 ]
INSPECTION PROCEDURE 6: A/C pressure sensor system
2018 / ECLIPSE CROSS / EC - Workshop Manual
55 -HEATER, AIR CONDITIONER AND VENTILATION > TROUBLESHOOTING > SYMPTOM PROCEDURES > A/C PRESSURE SENSOR SYSTEM
 
 
 
 
COMMENTS ON TROUBLE SYMPTOM
If the A/C pressure sensor system is defective, the wiring harness between the A/C pressure sensor and the A/C controller assembly (A/C-ECU) is suspected.
 
 
 
PROBABLE CAUSES
  • Malfunction of the A/C pressure sensor
  • Malfunction of the A/C controller assembly (A/C-ECU)
  • Damaged wiring harness or connectors
 
 
 
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-IIISE diagnosis code.
Recheck if the diagnosis code is set.
(1) Erase the diagnosis code.
(2) Ignition switch: "LOCK" (OFF) to "ON"
(3) Check if the diagnosis code is set.
Is the diagnosis code set?
Carry out the diagnosis code procedures (Refer to ).
Go to Step 2.
 
STEP 2. M.U.T.-IIISE data list
Check that the following service data display contents are normal (Refer to )
Item No.3: Refrigerant pressure sensor
Is the check result normal?
Go to Step 5.
Go to Step 3.
 
STEP 3. Check the A/C pressure sensor
Refer to .
Is the check result normal?
Go to Step 4.
Replace the A/C pressure sensor.
 
STEP 4. Check of open circuit in AC/R, SENB, SENG line between A/C controller assembly (A/C-ECU) connector and A/C pressure sensor connector.
Is the check result normal?
Go to Step 5.
Repair the connector(s) or wiring harness.
 
STEP 5. Recheck the trouble symptom.
Is the check result normal?
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction ).
Replace the A/C controller assembly (A/C-ECU).