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.
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HOMESERVICE MANUALSTOYOTA201886 GT, STANDARD TRANSREPAIR AND DIAGNOSIS (SINGLE PAGE)ELECTRICALCHARGING SYSTEMSBATTERY / CHARGING SYSTEM - DIAGNOSTICS - INTRODUCTIONCHARGING SYSTEMTERMINALS OF LIN COMMUNICATION ECU [06/2016 - ]TERMINALS OF ECU [06/2016 - ]
2018 Toyota 86 GT, Standard Trans
Terminals Of Ecu [06/2016 - ]
2018 Toyota 86 GT, Standard TransSECTION Terminals Of Ecu [06/2016 - ]
- CHECK ECM/ECUΒ
- Measure the Resistance, Voltage and Waveform according to the value(s) in the table below.TEXT IN ILLUSTRATION
Terminal No.
(Symbol)Wiring Color Terminal Description Condition Specified Condition A33-2 (BATT) - A34-1 (E03) W - B-R Battery Power Always 11 to 14 V A33-21 (LIN) - Body ground R - Body ground LIN Communication Line Ignition Switch OFF
(while LIN Communication is stopped)10 kΞ© or higher A34-1 (E03) - Body Ground B-R - Body Ground Body Ground Always Below 1 Ξ© If the result is not as specified, the ECU may have a malfunction.
- Measure the Resistance, Voltage and Waveform according to the value(s) in the table below.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.