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DTC Description
 
 
DTC DETECTION LOGIC
DTCM.U.T.-III SE screen terms
(Trouble diagnosis content)
DTC detection condition
P009100Fuel pressure regulator 1
(Fuel Pressure Regulator "A" Control Circuit Low)
Diagnosis conditionEngine running at idle
SignalPUMP signal
ThresholdECM detects High pressure fuel pump circuit is GND short
Diagnosis delay time5 seconds
 
 
POSSIBLE CAUSE
  • Harness or connectors (The high pressure fuel pump circuit is shorted.)
  • High pressure fuel pump
 
 
FAIL-SAFE
Not applicable
 
 
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
  1. Turn ignition switch OFF and wait at least 10 seconds.
  2. Turn ignition switch ON.
  3. Turn ignition switch OFF and wait at least 10 seconds.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is 11 V or more.
: .
 
2.PERFORM DTC CONFIRMATION PROCEDURE
  1. Turn ignition switch ON and wait at least 10 seconds.
  2. Check 1st trip DTC.
Is 1st trip DTC detected?
GO to DTC Diagnosis Procedure.
-1To check malfunction symptom before repair: Refer to Intermittent IncidentIntermittent Incident.
-2Confirmation after repair: INSPECTION END