PINPOINT TEST G290117P2

Pinpoint Tests

PINPOINT TEST G290117p2 : DTC P0190, P0192, P0193; FUEL PRESSURE (FRP) SENSOR

G290117t7 : CHECK THE FRP SENSOR SIGNAL CIRCUIT FOR HIGH RESISTANCE
1. Disconnect the battery negative terminal.
2. Disconnect the FRP sensor electrical connector PI28.
3. Disconnect the ECM electrical connector PI01.
4. Measure the resistance between PI28 pin 03 (U) and PI01 pin 73 (U).

- Is the resistance greater than 5 ohms?

-> YES
REPAIR the high resistance circuit. CLEAR the DTC. TEST the system for normal operation.

-> NO
GO to Pinpoint Test G290117t8.

G290117t8 : CHECK THE FRP SENSOR SIGNAL CIRCUIT FOR SHORT TO HIGH VOLTAGE
1. Reconnect the battery negative terminal.
2. Turn the ignition switch to the ON position.
3. Measure the voltage between PI28 pin 03 (U) and GROUND.

- Is the voltage greater than 3 volts?

-> YES
REPAIR the short circuit. CLEAR the DTC. TEST the system for normal operation.

-> NO
GO to Pinpoint Test G290117t9.

G290117t9 : CHECK THE FRP SENSOR SIGNAL CIRCUIT FOR SHORT TO GROUND
1. Disconnect the ECM electrical connector PI01.
2. Measure the resistance between the FRP sensor electrical connector PI28 pin 03 (U) and GROUND.

- Is the resistance less than 10,000 ohms?

-> YES
REPAIR the short circuit. CLEAR the DTC. TEST the system for normal operation.

-> NO
Recheck the DTCs. Check the sensor supply and ground circuits.