DTC P0192: Fuel Rail Pressure Sensor Circuit Low Input; DTC P0193: Fuel Rail Pressure Sensor Circuit High Input [09/2015 - ]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the Techstream on.
3. Put the engine in inspection mode (Refer to INSPECTION MODE PROCEDURE [09/2015 - ] ).
4. Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / Fuel Press.
5. Read the values.

   OK

   4000 to 13000 kPa (40.8 to 132.6 kgf/cm2, 580 to 1885 psi).

   RESULT
   
   

   Fuel Pressure (kPa)	Proceed to
   19600 kPa or higher	A
   Approximately 0.0	A
   OK [4000 to 13000 kPa]*	B

   HINT: 

   *: The value must change when the engine is running or stopped.

Result:  B

B 

CHECK FOR INTERMITTENT PROBLEMS 

(Refer to CHECK FOR INTERMITTENT PROBLEMS [09/2015 - ] )

Result:  A

A 

See step  2

1. Disconnect the H17 fuel pressure sensor connector.
2. Disconnect the E1 and E3 ECM connectors.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H17-1 (VC) - E1-18 (VC)	Always	Below 1 Ω
   H17-2 (PR) - E3-27 (PR)	Always	Below 1 Ω
   H17-3 (E2) - E1-28 (E2)	Always	Below 1 Ω
   H17-1 (VC) or E1-18 (VC) - Body ground	Always	10 kΩ or higher
   H17-2 (PR) or E3-27 (PR) - Body ground	Always	10 kΩ or higher

Result:  NG

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result:  OK

OK 

See step  3

1. Disconnect the H17 fuel pressure sensor connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Turn the power switch on (IG).
3. Measure the voltage between the terminals of the fuel pressure sensor connector.

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   H17-1 (VC) - H17-3 (E2)	Power switch on (IG)	4.5 to 5.5 V

Result:  NG

NG 

REPLACE ECM 

(Refer to REMOVAL [09/2015 - ] )

Result:  OK

OK 

See step  4

1. Replace the fuel delivery pipe sub-assembly LH (fuel pressure sensor) (Refer to REMOVAL [09/2015 - ] ).

Result:  NEXT

NEXT 

See step  5

1. Connect the Techstream to the DLC3.
2. Turn the Techstream on.
3. Put the engine in inspection mode (Refer to INSPECTION MODE PROCEDURE [09/2015 - ] ).
4. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
5. Read the DTCs.
   RESULT
   
   

   Display (DTC Output)	Proceed to
   P0192 and/or P0193	A
   No output	B

Result:  A

A 

REPLACE ECM 

(Refer to REMOVAL [09/2015 - ] )

Result:  B

B 

END