[ Model - ECLIPSE CROSS / Year - 2018 ]
2018 / ECLIPSE CROSS / EC - Workshop Manual
55 -HEATER, AIR CONDITIONER AND VENTILATION > TROUBLESHOOTING > DIAGNOSIS CODE PROCEDURES > B1126/B1129 IN/OUT SELECT DMPR. CIRCUIT OPEN, SHORT
Code No.B1126: In/out select dmpr. circuit open
Code No.B1129: In/out select dmpr. circuit short
 
 
 
 
COMMENTS ON TROUBLE SYMPTOM
When the inside/outside air cannot be switched, open circuit (Code No. B1126) and short circuit (Code No. B1129) of the inside air/outside air changeover motor circuit are set.
 
 
 
PROBABLE CAUSES
  • Malfunction of the outside/inside air selection damper control motor
  • Damaged wiring harness or connectors
  • Malfunction of the A/C controller assembly (A/C-ECU)
 
 
 
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-IIISE actuator test
Carry out the actuator test (Refer to ).
Item No.10: Out/Inside air select damper
Is the check result normal?
Go to Step 3.
Go to Step 2.
 
STEP 2. Check of open circuit in IG1, FA, FA’, FB and FB’ line between outside/inside air selection damper control motor connector and A/C controller assembly (A/C-ECU) connector.
Is the check result normal?
Go to Step 3.
Repair the connector(s) or wiring harness.
 
STEP 3. Check whether the diagnosis code is set again.
Is the diagnosis code set?
Replace the outside/inside air selection damper control motor. Then go to Step 4.
The trouble can be an intermittent malfunction (Refer to GROUP 00, How to Cope with Intermittent Malfunction ).
 
STEP 4. Check whether the diagnosis code is set again.
Is the diagnosis code set?
Replace the A/C controller assembly (A/C-ECU).
This procedure is complete.