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DTC Description
 
 
DTC DETECTION LOGIC
DTC No.M.U.T.-III SE screen terms
(Trouble diagnosis content)
DTC detection condition
B20C8-14Compressor (ECV)
[Compressor (electrical control valve)]
[CIRC SHORT TO GRND OR OPEN]Diagnosis conditionWhen A/C switch is ON
Signal (Terminal)ECV control signal
ThresholdECV control signal circuit has a shorted to ground or open
Diagnosis delay time1 second or more
 
 
POSSIBLE CAUSE
  • Fuse
  • Harness or connectors (ECV control signal circuit is shorted to ground or open)
  • A/C compressor
  • IPDM E/R
 
 
FAIL-SAFE
Inhibit A/C compressor (ECV) operation
 
 
DTC CONFIRMATION PROCEDURE
1.PERFORM SELF-DIAGNOSIS
With M.U.T.-III SE
  1. Start the engine.
  2. A/C switch ON.
  3. Select “Self Diagnostic Result” mode of “IPDM E/R” using M.U.T.-III SE.
  4. Check DTC.
Is DTC detected?
Refer to Diagnosis Procedure.
-1To check malfunction symptom before repair: Refer to Intermittent IncidentIntermittent Incident.
-2Confirmation after repair: INSPECTION END