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DTC Description

DTC DETECTION LOGIC

NOTE:

If DTC P0090 is displayed with DTC P1197, first perform the trouble diagnosis for DTC P1197.
DTC P0090 may be displayed when running out of gas.

DTC No.	Trouble diagnosis name (Trouble diagnosis content)	DTC detecting condition	Possible cause
P0090	FUEL PUMP (High pressure fuel pump circuit)	Fuel rail pressure remains at 1.5 MPa (15 bar, 15.3 kg/cm² , 217.5 psi) or less for 3 seconds or more during engine rev. Fuel rail pressure remains at 18.5 MPa (185 bar, 188.7 kg/cm² , 2682.5 psi) or more for 0.3 seconds or more during engine rev.	Harness or connectors (The fuel pump circuit is open or shorted.) High pressure fuel pump

DTC CONFIRMATION PROCEDURE

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 at idle.
- Before performing the following procedure, check that the fuel tank is 1/8 full of fuel.
>>

GO TO 2.
PERFORM DTC CONFIRMATION PROCEDURE-I
WITH CONSULT
1. Start engine.
2. Select "COOLAN TEMP/S" in "DATA MONITOR" mode of "ENGINE" using CONSULT.
3. Maintain the following condition for 5 seconds or more at idle.
  
  COOLAN TEMP/S : 70°C (104°F) or more
4. Check 1st trip DTC.
WITH GST: Follow the above steps for "WITH CONSULT ". Is 1st trip DTC detected?

YES>>

Refer to DTC Diagnosis Procedure .

NO>>

INSPECTION END