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DTC Description
 
 
DTC DETECTION LOGIC
DTCM.U.T.-III SE screen terms
(Trouble diagnosis content)
DTC detection condition
P18AC00MOTOR RELAY
(Motor Relay)
Diagnosis conditionWhen the ignition switch is turned from ON to OFF
Signal
ThresholdIn spite of the shift actuator relay OFF, voltage is detected from the U phase, V phase and W phase of motor coil A or motor coil B.
Diagnosis delay time
 
 
POSSIBLE CAUSE
  • Harness or connectors
    • Shift actuator relay circuit is shorted to ground.
    • Motor coil A or motor coil B circuit is shorted to power.
  • Shift actuator relay (ON stuck)
 
 
FAIL-SAFE
No impact to vehicle behavior
 
 
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always ignition switch OFF and wait at least 60 seconds before conducting the next test.
: .
 
2.PERFORM DTC CONFIRMATION PROCEDURE
  1. The ignition switch is ON and wait for 2 seconds or more.
  2. Check DTC.
Is “P18AC-00 detected?
Go to Diagnosis ProcedureDTC Diagnosis Procedure.
-1To check malfunction symptom before repair: Go to Intermittent IncidentIntermittent Incident.
-2Confirmation after repair: INSPECTION END