2018 / ECLIPSE CROSS / EC - Workshop Manual
23 -AUTOMATIC TRANSMISSION > 23A-CVT > TROUBLESHOOTING<S-AWC><S-AWC> > SYMPTOM PROCEDURES > A DIAGNOSIS CODE IS NOT STORED ALTHOUGH A MESSAGE IS DISPLAYED.
INSPECTION PROCEDURE 4: 4WD system check screen is displayed on the centre of the multi-information display and a "4WD" symbol flashes at the left top. But no diagnosis codes are set.
COMMENTS ON TROUBLE SYMPTOM
- When a 4WD system check screen is displayed on the centre of the multi-information display and a "4WD" symbol flashes at the left top without setting any diagnosis codes, the power supply to the AWC-ECU may be defective.
- When the power supply voltage to the AWC-ECU drops under approx. 6 V, the ECU cannot set any diagnosis codes due to the poor power supply. In this case, the combination meter will determine that the AWC-ECU is timed out, and then display "4WD system check" at the centre of the multi-information display and make "4WD" symbol flash at the left top.
PROBABLE CAUSES
- Damaged wiring harness and connectors
- Malfunction of AWC-ECU
DIAGNOSIS PROCEDURE
1. Check the Inspection Procedure 5: Malfunction of power supply circuit system (Refer to 
). 2. Check the trouble symptom.
