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DTC Description
 
 
DTC DETECTION LOGIC
DTC No.M.U.T.-III SE screen items
(Trouble diagnosis content)
DTC Detection Condition
B0021-1ACURTAIN A/B MODULE LH
(Left Curtain Deployment Control 1)
Diagnosis conditionWhen ignition switch is ON.
Signal (terminal)Curtain air bag module LH signal
ThresholdCurtain air bag module LH circuits are shorted to each other
Diagnosis delay time2 seconds or more.
 
 
POSSIBLE CAUSE
  • Connection malfunction or short circuit of harness and connector
  • Internal malfunction of curtain air bag module LH
  • Internal malfunction of air bag diagnosis sensor unit
 
 
FAIL-SAFE
—
 
 
DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAG RESULT
With M.U.T.-III SE
  1. Ignition switch ON.
  2. Perform “Self Diagnostic Result” mode of “AIR BAG” using M.U.T.-III SE.
Is malfunctioning part detected?
Refer to Diagnosis Procedure.
-1To check malfunction symptom before repair: Refer to Intermittent IncidentIntermittent Incident.
-2Confirmation after repair: INSPECTION END