Test Procedure

WARNING: This page is about a different variant/trim than selected.

MB1 CHECK FOR DTCS

Are DTCs P0192 or P0193 present?

Yes	No
GO to MB2 .	Unable to duplicate the condition. CHECK for a loose connection, and damaged or corroded terminals. WIGGLE the harness attempting to recreate the concern. REPAIR as necessary. RETURN to SYMPTOM CHARTS for further direction.

MB2 INTERMITTENT CHECK

Ignition ON, engine OFF.
Access the PCM and monitor the FRP (VOLT) PID.
While observing the PID, carry out the following:
- Wiggle all accessible harness from the FRP sensor to the PCM and lightly tap on the sensor.
- Wiggle the FRP sensor connector.
- Look for sudden changes in the voltage when the harness and connector are wiggled or when the FRP sensor is tapped.

Is a concern present?

Yes	No
REPAIR as necessary. Clear the PCM DTCs. REPEAT the self-test.	GO to MB3 .

MB3 CHECK FOR VREF VOLTAGE AT THE FRP SENSOR

Measure the voltage between:

(+) FRP Sensor Connector, Harness Side	(-) FRP Sensor Connector, Harness Side
VREF - Pin 1	SIGRTN - Pin 3

Is the voltage between 4.5 - 5.5 V?

Yes	No
GO to MB4 .	GO to PINPOINT TEST B .

MB4 CHECK THE FRP CIRCUIT FOR AN OPEN

Measure the resistance between:

(+) FRP Sensor Connector, Harness Side	(-) PCM-E Connector, Harness Side
FRP - Pin 2	FRP - Pin 15

Is the resistance less than 5 ohms?

Yes	No
GO to MB5 .	REPAIR the open circuit. Clear the PCM DTCs. REPEAT the self-test.

MB5 CHECK THE FRP CIRCUIT FOR A SHORT

Measure the resistance between:

(+) FRP Sensor Connector, Harness Side	(-)
FRP - Pin 2	Ground

Measure the resistance between:

(+) FRP Sensor Connector, Harness Side	(-) FRP Sensor Connector, Harness Side
FRP - Pin 2	VREF - Pin 1
FRP - Pin 2	SIGRTN - Pin 3

Are the resistances greater than 10K ohms?

Yes	No
GO to MB6 .	REPAIR the short circuit. Clear the PCM DTCs. REPEAT the self-test.

MB6 CHECK THE FRP CIRCUIT FOR A SHORT TO VOLTAGE

Measure the voltage between:

(+) FRP Sensor Connector, Harness Side	(-)
FRP - Pin 2	Ground

Is any voltage present?

Yes	No
REPAIR the short circuit. Clear the PCM DTCs. REPEAT the self-test.	INSTALL a new FRP sensor. REFER to the service information , Electronic Engine Controls. Clear the PCM DTCs. REPEAT the self-test.