SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSSUBARU2016LEGACY 2.5IREPAIR AND DIAGNOSISBRAKESTRACTION CONTROLVEHICLE DYNAMICS CONTROL (VDC) SYSTEM (DIAGNOSTICS)DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)DTC C1732 LATERAL G SENSORTROUBLE SYMPTOM
2016 Subaru Legacy 2.5i

DTC C1732 Lateral G Sensor: Trouble Symptom

2016 Subaru Legacy 2.5iSECTION Trouble Symptom
  • ABS does not operate.
  • VDC does not operate.
  • Hill hold does not function.
  • EyeSight does not operate. (Models with EyeSight)
DIAGNOSTIC PROCEDURE

Step Check Yes No
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?		 Go to step 2  . Repair the defective part.

Go to step 2  .
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". < Ref. to READ CURRENT DATA , OPERATION, Subaru Select Monitor. >
  3. Read the «Steering Angle Sensor» displayed on display.
 Is the indicated reading of the steering angle sensor on the monitor display -10° - 10°? Go to step 3  . Check the installation of steering angle sensor.
3 CHECK OUTPUT OF LATERAL G SENSOR AND LONGITUDINAL G SENSOR WITH SUBARU SELECT MONITOR. 
  1. Park the vehicle straight on a level surface.
  2. Using the Subaru Select Monitor, select "Data monitor". < Ref. to READ CURRENT DATA , OPERATION, Subaru Select Monitor. >
  3. Read the «Lateral G Sensor» «Longitudinal G Sensor» displayed on display.
 Is the indicated reading of the lateral G sensor and longitudinal G sensor on the monitor display -2 - 2 m/s2 ? Go to step 4  . Recheck from step 1, and if the problem is not solved, go to next. Go to step 7  .
4 SET 0 POINT OF LATERAL G SENSOR AND LONGITUDINAL G SENSOR WITH SUBARU SELECT MONITOR. 
  1. Using the Subaru Select Monitor, select "Work Support".
  2. Perform the VDC sensor midpoint setting mode. < Ref. to VDC SENSOR MIDPOINT SETTING MODE , ADJUSTMENT, VDC Control Module and Hydraulic Control Unit (VDCCM & H/U). >
 Is 0 point setting successful? Go to step 5  . Recheck from step 1, and when the 0 point setting is not possible, replace the VDCCM & H/U. < Ref. to VDC CONTROL MODULE AND HYDRAULIC CONTROL UNIT (VDCCM & H/U) . >
5 PERFORM DRIVING TEST. 
< Ref. to INSPECTION MODE . >		 Does the ABS warning light or VDC warning light illuminate during driving?
Does ABS or VDC operate abnormally?		 Recheck from step 1, and when the warning lights illuminate or improperly operate, replace the VDCCM & H/U. < Ref. to VDC CONTROL MODULE AND HYDRAULIC CONTROL UNIT (VDCCM & H/U) . > Go to step 6  .
6 CHECK OUTPUT OF LATERAL G SENSOR AND LONGITUDINAL G SENSOR WITH SUBARU SELECT MONITOR. 
  1. Park the vehicle on a level surface.
  2. Using the Subaru Select Monitor, select "Data monitor". < Ref. to READ CURRENT DATA , OPERATION, Subaru Select Monitor. >
  3. Read the «Lateral G Sensor» «Longitudinal G Sensor» displayed on display.
 Is the indicated reading of the lateral G sensor and longitudinal G sensor on the monitor display -1.5 - 1.5 m/s2 ? Currently, it is normal. There may have been a 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. < Ref. to VDC CONTROL MODULE AND HYDRAULIC CONTROL UNIT (VDCCM & H/U) . >
7 CHECK OUTPUT OF LATERAL G SENSOR AND LONGITUDINAL 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". < Ref. to READ CURRENT DATA , OPERATION, Subaru Select Monitor. >
  4. Read the «Lateral G Sensor» «Longitudinal G Sensor» displayed on display.
 When the VDCCM & H/U is in a horizontal position, is the indicated reading of the lateral G sensor and longitudinal G sensor on the monitor display -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. < Ref. to VDC CONTROL MODULE AND HYDRAULIC CONTROL UNIT (VDCCM & H/U) . >
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.