[ Model - ECLIPSE CROSS / Year - 2018 ]
2018 / ECLIPSE CROSS / EC - Workshop Manual
54 -CHASSIS ELECTRICAL > 54A-CHASSIS ELECTRICAL > HEATED WINDSHIELD > SYMPTOM PROCEDURES > The heated windshield switch indicator lamp does not come on.
Inspection Procedure 3: The heated windshield indicator lamp does not come on.
 
 
cautionBefore replacing the ECU, ensure that the power supply circuit, the earth circuit and the communication circuit are normal.
 
 
COMMENTS ON TROUBLE SYMPTOM
When the heated windshield switch indicator does not come on with the heated windshield switch ON (5- or 10-minute timer is triggered), the IG1 relay circuit system may be defective.
noteWhen the engine is not running, the heated windshield does not work.
 
 
PROBABLE CAUSES
  • Malfunction of heated windshield switch
  • Malfunction of A/C controller assembly
  • Wiring harness or connector failure
 
 
DIAGNOSIS PROCEDURE
STEP 1. Determine a trouble spot.
Does the heated windshield work?
Go to Step 2.
Proceed to "The heated windshield does not work."
 
STEP 2. Check the heated windshield switch.
Check the heated windshield switch indicator (Refer to ).
Is the check result normal?
Go to Step 3.
Replace the heated windshield switch (Refer to ).
 
STEP 3. Check of open circuit, short to earth in HWSI line between A/C controller assembly connector and heated windshield switch connector.
Is the check result normal?
Go to Step 4.
Repair the connector(s) or wiring harness.
 
STEP 4. Check of open circuit in IG11 line between ETACS-ECU connector and heated windshield switch connector.
Is the check result normal?
Go to Step 5.
Repair the connector(s) or wiring harness.
 
STEP 5. Retest the system
Check whether the heated windshield indicator lamp comes on.
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 (Refer to GROUP 55 - A/C Control Unit ).