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.
2022 Subaru BRZ Limited, Automatic TransFACTORY OEM SERVICE PROCEDURE
Active Test: List: Notes
| Active test item | Contents | Execution condition | ||
|---|---|---|---|---|
| Fuel Pump Relay | ON/OFF of the fuel pump can be set. | Ignition switch ON (engine OFF) | ||
| CPC Solenoid Valve | ON/OFF of the purge control solenoid valve can be set. | |||
| Radiator Fan Relay | ON/OFF of the radiator fan relay can be set. | |||
| A/C Compressor Relay | ON/OFF of the A/C relay can be set. | |||
| ELCM switching valve | ON/OFF of the leak check valve assembly switching valve can be set. | |||
| ELCM pump | ON/OFF of the leak check valve assembly vacuum pump can be set. | |||
| Fuel Pump Control (OFF Drive) | Fuel pump can be set to OFF. | Idling | ||
| Fixed Idle Ignition Timing | Ignition timing is set depending on the engine speed. | Idling | ||
| Idle Speed Control | Idle speed can be set. | Idling | ||
| Injection Stop Mode (Injector 1) Injection Stop Mode (Injector 2) Injection Stop Mode (Injector 3) Injection Stop Mode (Injector 4) |
Injector of each cylinder can be set to stop the fuel injection. | Idling | ||
| Alternator control | Alternator control mode can be set to one of the followings:
|
Idling | ||
| Injection Volume - Port Injection Injection Volume - Direct Injection Injection Volume - Injection of Control Depending |
The fuel injection method can be set to the cylinder injection or the port injection. The amount of fuel injection can be set.
NOTE:
Statuses of the front oxygen (A/F) sensor and the rear oxygen sensor can be checked by increasing/decreasing the fuel injection volume.
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| Target Fuel Pressure | The fuel pressure can be set. | Engine speed: 3000 rpm or less | ||
| Fuel Injection Period - Injector 1 Fuel Injection Period - Injector 2 Fuel Injection Period - Injector 3 Fuel Injection Period - Injector 4 Fuel Injection Period - All Injector |
The fuel injection period can be set. |
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| Activate the ACC Cut Relay | ON/OFF of the ACC cut relay operation can be set. |
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| Control the ETCS Open/Close | The throttle valve operation can be set to throttle open/throttle closed. |
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| Power balance (injection stop) - Port Injection Power balance (injection stop) - Direct Injection Power balance (injection stop) - Injection of Control Depending |
The fuel injection method for each cylinder can be set to the cylinder injection or the port injection. The fuel injection for each cylinder can be stopped. |
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| Power balance (injection ignition stop) - Port Injection Power balance (injection ignition stop) - Direct Injection Power balance (injection ignition stop) - Injection of Control Depending |
The fuel injection method for each cylinder can be set to the cylinder injection or the port injection. The fuel injection and ignition for each cylinder can be stopped. |
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| Control the All Cylinders Fuel Cut | The fuel injection for all cylinders can be stopped.
NOTE:
It is possible to check the ignition system for abnormality by stopping the fuel injection during startup cycle and allowing ignition operation only.
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| Check the Cylinder Compression | The engine speed during cranking can be measured. Ref. to ENGINE (DIAGNOSTICS) (H4DO)>ACTIVE TEST>LIST>CHECK THE CYLINDER COMPRESSION .
NOTE:
Fuel injection and ignition for all cylinders are stopped, cranking is performed for approx. 10 seconds, and engine speed for each cylinder is measured.
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| Injection Mode Change | The fuel injection method can be switched to the following.
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| Starter cut relay | ON/OFF of the starter cut relay operation can be set. |
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| Control the VVT Linear (Bank1) Control the VVT Linear (Bank2) | Intake oil control solenoid operation can be set to -27 - 36°CA in increments of 1°CA. |
CAUTION:
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| Control the VVT Exhaust Linear (Bank1) Control the VVT Exhaust Linear (Bank2) |
Exhaust oil control solenoid operation can be set to 0 - 51°CA in increments of 1°CA. | |||
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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.