DTC C0119 G Sensor Output Signal Malfunction: Wiring Diagram

Fig 1: G Sensor Output Signal Malfunction - Wiring Diagram

Courtesy of SUBARU OF AMERICA, INC.

G SENSOR DIAGNOSTIC PROCEDURE

Step	Check	Yes	No
1 WHETHER A WHEEL TURNED FREELY OR NOT.	Have the wheels spun free of load when the vehicle is lifted up, or during driving on a rough road?	ABS is normal. Clear the memory.	Go to step 2.
2 CHECK OUTPUT OF G SENSOR USING SUBARU SELECT MONITOR. Select {Current Data Display & Save} in the Subaru Select Monitor. Read the Subaru Select Monitor display.	Is the reading indicated on display -1.2 - 1.2 m/s when the G sensor is horizontal?	Go to step 3.	Go to step 8.
3 CHECK OUTPUT OF G SENSOR USING SUBARU SELECT MONITOR. Turn the ignition switch to OFF. Remove the console box. Remove the G sensor from vehicle. (Do not disconnect the connector.) Turn the ignition switch to ON. Select {Current Data Display & Save} in the Subaru Select Monitor. Read the Subaru Select Monitor display.	Is the value indicated on the screen 8.1 - 11.2 m/s when G sensor is inclined forward to 90°?	Go to step 4.	Replace the G sensor. Refer to G SENSOR .
4 CHECK OUTPUT OF G SENSOR USING SUBARU SELECT MONITOR. Read the Subaru Select Monitor display.	Is the value indicated on the screen -8.1 - 11.2 m/s when G sensor is inclined backward to 90°?	Go to step 5.	Replace the G sensor. Refer to G SENSOR .
5 CHECK POOR CONTACT IN CONNECTOR. Turn the ignition switch to OFF.	Is there poor contact in connectors between ABSCM & H/U and G sensor?	Repair the connector.	Go to step 6.
6 CHECK ABSCM & H/U. Connect all connectors. Clear the memory. Refer to CLEAR MEMORY MODE . Perform the Inspection Mode. Refer to INSPECTION MODE . Read the DTC.	Is the same DTC displayed?	Replace the ABSCM only. Refer to REPLACEMENT , ABS Control Module and Hydraulic Control Unit (ABSCM & H/U).	Go to step 7.
7 CHECK FOR ANY OTHER DTC ON DISPLAY.	Is any other DTC displayed?	Check DTC using LIST OF DIAGNOSTIC TROUBLE CODE (DTC) .	Temporary poor contact occurs.
8 CHECK OPEN CIRCUIT IN G SENSOR OUTPUT HARNESS AND GROUND HARNESS. Turn the ignition switch to OFF. Disconnect the ABSCM & H/U connectors. Measure the resistance between ABSCM & H/U connector terminals. Connector & terminal (B301) No. 21 - No. 10:	Is the resistance 3.6 - 3.8 kΩ?	Go to step 9.	Repair the harness connector between the G sensor and ABSCM & H/U.
9 CHECK GROUND SHORT OF HARNESS. Measure the resistance between the ABSCM & H/U connector and chassis ground. Connector & terminal (B301) No. 21 - Chassis ground:	Is the resistance 1 MΩ or more?	Go to step 10.	Repair the harness connector between the G sensor and ABSCM & H/U.
10 CHECK G SENSOR. Remove the console box. Remove the G sensor from vehicle. Connect the connector to G sensor. Connect the connector to ABSCM & H/U. Turn the ignition switch to ON. Measure the voltage between G sensor connector terminals. Connector & terminal (B292) No. 2 (+) - No. 3 (-):	Is the voltage 2.1 - 2.5 V when G sensor is in horizontal position?	Go to step 11.	Replace the G sensor. Refer to G SENSOR .
11 CHECK G SENSOR. Measure the voltage between G sensor connector terminals. Connector & terminal (B292) No. 2 (+) - No. 3 (-):	Is the voltage 3.6 - 4.1 V when the G sensor is inclined forward to 90°?	Go to step 12.	Replace the G sensor. Refer to G SENSOR .
12 CHECK G SENSOR. Measure the voltage between G sensor connector terminals. Connector & terminal (B292) No. 2 (+) - No. 3 (-):	Is the voltage 0.5-1.0 V when G sensor is inclined back 90°?	Go to step 13.	Replace the G sensor. Refer to G SENSOR .
13 CHECK ABSCM & H/U. Turn the ignition switch to OFF. Connect all connectors. Clear the memory. Refer to CLEAR MEMORY MODE . Perform the Inspection Mode. Refer to INSPECTION MODE . Read the DTC.	Is the same DTC displayed?	Replace the ABSCM only. Refer to REPLACEMENT , ABS Control Module and Hydraulic Control Unit (ABSCM & H/U).	Go to step 14.
14 CHECK FOR ANY OTHER DTC ON DISPLAY.	Is any other DTC displayed?	Check DTC using LIST OF DIAGNOSTIC TROUBLE CODE (DTC) .	Temporary poor contact occurs.