The vehicle’s ECM uses the ISO 9141−2 communication
protocol. The terminal arrangement of DLC3 complies
with SAE J1962 and matches the ISO 9141−2 format.
Terminal No. Connection / Voltage or Resistance Condition
7 Bus Line / Pulse generation During transmission
4 Chassis Ground ↔ Body Ground / 1 Ω or less Always
5 Signal Ground ↔ Body Ground / 1 Ω or less Always
16 Battery Positive ↔ Body Ground / 9 ∼ 14 V Always
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