Subaru Crosstrek Service Manual: Dtc c0073 abnormal lateral g sensor output

DTC detecting condition:

Defective lateral G sensor

Trouble symptom:

• VDC does not operate.

• EyeSight does not operate.

1.CHECK INSTALLATION OF VDCCM&H/U.

Is VDCCM&H/U installed properly without being tilted?
Is the bracket deformation-free?
Are the VDCCM&H/U installation bolts installed without missing or getting loose?

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC C0073 ABNORMAL LATERAL G SENSOR OUTPUT">Go to Step 2.

Repair the defective part.

• Install VDCCM&H/U properly.

• Replace the bracket if faulty.

• Tighten the VDCCM&H/U installation bolt. General Description > COMPONENT">

2.CHECK OUTPUT OF STEERING ANGLE SENSOR USING SUBARU SELECT MONITOR.

1) Park the vehicle straight on a level surface.

2) Using the Subaru Select Monitor, select “Data monitor”. Subaru Select Monitor > OPERATION">

3) Read the «Steer Angle Sensor Op» displayed on display.

Is the reading of «Steer Angle Sensor Op» −10° — 10°?

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC C0073 ABNORMAL LATERAL G SENSOR OUTPUT">Go to Step 3.

Check the installation of steering angle sensor.

3.CHECK OUTPUT OF LATERAL G SENSOR WITH SUBARU SELECT MONITOR.

1) Park the vehicle straight on a level surface.

2) Using the Subaru Select Monitor, select “Data monitor”. Subaru Select Monitor > OPERATION">

3) Read the «Lateral G sensor Output» displayed on display.

Is the reading of «Lateral G sensor Output» −2 — 2 m/s2?

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC C0073 ABNORMAL LATERAL G SENSOR OUTPUT">Go to Step 4.

Recheck from step 1, and if the problem is not solved, Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC C0073 ABNORMAL LATERAL G SENSOR OUTPUT">Go to Step 7.

4.SET 0 POINT FOR LATERAL G SENSOR USING SUBARU SELECT MONITOR.

1) Using the Subaru Select Monitor, select “Work Support”.

2) Perform Set up mode for Neutral of Steering Angle Sensor & Lateral G Sensor 0 point. VDC Control Module and Hydraulic Control Unit (VDCCM&H/U) > ADJUSTMENT">

Is the 0 point setting successful?

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC C0073 ABNORMAL LATERAL G SENSOR OUTPUT">Go to Step 5.

Recheck from step 1, and when the 0 point setting is not possible, replace the VDCCM&H/U. VDC Control Module and Hydraulic Control Unit (VDCCM&H/U)">

5.PERFORM DRIVING TEST.

Drive approximately 10 minutes, and check if the warning lights illuminate or improperly operate during driving.

In a safe place, drive the vehicle while alternating acceleration and deceleration as much as possible.

Did the ABS warning light or VDC warning light remain off?
Does ABS or VDC operate without malfunction?

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC C0073 ABNORMAL LATERAL G SENSOR OUTPUT">Go to Step 6.

Recheck from step 1, and when the warning lights illuminate or improperly operate, replace the VDCCM&H/U. VDC Control Module and Hydraulic Control Unit (VDCCM&H/U)">

6.CHECK OUTPUT OF LATERAL G SENSOR WITH SUBARU SELECT MONITOR.

1) Park the vehicle on a level surface.

2) Using the Subaru Select Monitor, select “Data monitor”. Subaru Select Monitor > OPERATION">

3) Read the «Lateral G sensor Output» displayed on display.

Is the reading of «Lateral G sensor Output» −1.5 — 1.5 m/s2?

Currently, it is normal. There may have been a temporary poor contact in the harness and connector or a temporarily noise interference.

Recheck from step 1, and if the problem is not solved, replace the VDCCM&H/U. VDC Control Module and Hydraulic Control Unit (VDCCM&H/U)">

7.CHECK OUTPUT OF LATERAL G SENSOR WITH SUBARU SELECT MONITOR.

1) Remove the VDCCM&H/U installation bolt and bracket.

2) Keep VDCCM&H/U in a horizontal position.

3) Using the Subaru Select Monitor, select “Data monitor”. Subaru Select Monitor > OPERATION">

4) Read the «Lateral G sensor Output» displayed on display.

When the VDCCM&H/U is in a horizontal position, is the value of «Lateral G sensor Output» −1.5 — 1.5 m/s2?

Check the bracket and brake pipe, and install VDCCM&H/U in a horizontal position to the vehicle.

Replace the VDCCM&H/U. VDC Control Module and Hydraulic Control Unit (VDCCM&H/U)">

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