Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2016 Subaru BRZ Limited, Automatic TransFACTORY OEM SERVICE PROCEDURE

On-Vehicle Inspection

Ignition coil assembly inspection

Input voltage inspection

Disconnect the connector of the ignition coil assembly.
Turn the ignition switch to ON.

Check the voltage between terminals of the vehicle side connector for the ignition coil assembly.

Voltage

Inspection terminals	Inspection conditions	Standard value
C38-1 - chassis ground	IG ON	11 to 14 V
C28-1 - chassis ground	IG ON	11 to 14 V
C39-1 - chassis ground	IG ON	11 to 14 V
C27-1 - chassis ground	IG ON	11 to 14 V

Fig 1: Ignition Coil Assembly Vehicle Connector End View (C38 Cylinder No. 1, C28 Cylinder No. 2, C39 Cylinder No. 3 & C27 Cylinder No. 4)

G10212984

Courtesy of SUBARU OF AMERICA, INC.

Turn the ignition switch to OFF.

Spark Inspection
1. Check the DTC. (Refer to MALFUNCTION SYMPTOMS AND DTC CHECK )
  CAUTION: When DTC is detected, perform the troubleshooting for DTC.
2. Remove 4 ignition coils and 4 spark plugs. (Refer to REMOVAL )
3. Use the following procedures to remove the SST.
  1. Using the SST, lift the engine assembly.
    SST 99099AJ000, 18679AA020
  2. Remove the SST.
    SST 18632AA020
    
    Fig 2: Locating SST
    Courtesy of SUBARU OF AMERICA, INC.
  3. Install two new nuts of engine mounting.
    Standard value: T=60N.m {612kgf.cm} {44.2ft.lbf}
    
    Fig 3: Locating Engine Mounting Nuts
    Courtesy of SUBARU OF AMERICA, INC.
4. Remove the 2 bolts, and remove the intake manifold protector (bank 1 side).
  
  Fig 4: Locating Intake Manifold Protector Bolts
  Courtesy of SUBARU OF AMERICA, INC.
5. Disconnect 2 connectors for the fuel injector and disconnect the clamp.
  
  Fig 5: Locating Fuel Injector Connectors
  Courtesy of SUBARU OF AMERICA, INC.
6. Install the intake manifold protector (bank 1 side).
7. Install the injector driver.
  NOTE: Leave 2 upper connectors disconnected.

Factory Service Tools

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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.

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