Inspection steps

WARNING: This page is about a different car, the 2014 Subaru BRZ. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: When the skid control ECM (brake actuator Assembly) has been replaced, make sure to perform [VDC sensor mid point setting mode]. (Refer to WORK SUPPORT )

Diagnostic code output check (CAN communication system)

Check CAN communication system. (Refer to HOW TO TROUBLESHOOT )

RESULT

Result	Go to
No output	A
Output exists	B

B: To CAN communication system (How to troubleshoot) (Refer to HOW TO TROUBLESHOOT )

A: Go to Next Step

Inspection of skid control ECM connector connection
1. Check if the skid control ECM connector is properly connected.
  Criteria: The connector is properly connected.
  
  NG: Properly connect the connector to the ECM.
  
  OK: Go to Next Step
Check the battery.
1. Check the battery voltage.
  Standard voltage: 11 to 14 V
  
  NG: Repair or replace charging system components or battery (Refer to ON-VEHICLE INSPECTION )
  
  OK: Go to Next Step

Check the Current Data Display (VSC SPORT mode)

Connect the SSM3 to the DLC3.
Start the engine.

Using SSM3, check [Current Data Display] of [VSC SPORT MODE]. (Refer to [CURRENT DATA DISPLAY & SAVE] )

SSM3 SCREEN: [ABS/VDC SYSTEM]→[CURRENT DATA DISPLAY & SAVE]

Tester display	Measured item/Range	Normal condition	Notes for diagnosis
VSC SPORT mode	Vehicle stability control SPORT mode / Normal or Sports	Normal: Normal mode Sports: Vehicle stability control SPORT mode	-

Using SSM3, make sure that the state of the switch displayed in SSM3 changes depending on the Vehicle stability control SPORT switch operation.
Criteria: The display of the SSM3 changes depending on the operation of Vehicle stability control SPORT switch.

NG: Go to step 6.

OK: Go to Next Step

Combination meter Assembly check
1. Using SSM3, display [System Operation Check Mode] of the combination meter Assembly (meter CPU). (Refer to CURRENT DATA DISPLAY & SAVE / SYSTEM OPERATION CHECK MODE )
2. Check the combination meter Assembly.
  Criteria: Vehicle stability control SPORT indicator light is turned ON or OFF depending on the SSM3 operation.
  
  NOTE: If this section is referenced while performing troubleshooting described in the symptom table, go back to the table and go to the next step before replacing parts. (Refer to SYMPTOM TABLE )
  
  NG: Replacement of combination meter Assembly (Refer to COMBINATION METER Assembly )
  
  OK: Replacement of brake actuator Assembly (Refer to REMOVAL )
Vehicle stability control SPORT switch check
1. Check the Vehicle stability control SPORT switch. (Refer to INSTALLATION )
  NG: Replacement of Vehicle stability control SPORT switch (Refer to REMOVAL )
  
  OK: Go to Next Step

Harness and connector check (skid control ECM - Vehicle stability control SPORT switch)

Disconnect the skid control ECM connector.

Measure the resistance according to the following table.

NORMAL RESISTANCE

Tester connection	Condition	Specific condition
A5-27 (CSW) - D35-5	Always	1 Ωor less
A5-27(CSW) - chassis ground	Always	10 k Ωor more
D35-8 - chassis ground	Always	1 Ωor less

Fig 1: Identifying Vehicle Stability Control Sport Switch Connector Terminals

Courtesy of SUBARU OF AMERICA, INC.

NOTE: If this section is referenced while performing troubleshooting described in the symptom table, go back to the table and go to the next step before replacing parts. (Refer to SYMPTOM TABLE )

NG: Repair or replacement of wiring harness or connector

OK: Replacement of brake actuator Assembly (Refer to REMOVAL )