Steering Lock System Terminals Of Ecu

  1. CHECK STEERING LOCK ECU

Steering Lock System -- Terminals Of Ecu



CHECK STEERING LOCK ECU
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  1. Disconnect the G35 steering lock ECU connector.

  2. Measure the voltage and resistance according to the value(s) in the table below.

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    G35-1 (GND) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    G35-6 (IG2) - G35-1 (GND)
    		W - W-B
    		IG2 signal input
    		Engine switch off → engine switch on (IG)
    		Below 1 V → 11 to 14 V
    G35-7 (B) - G35-1 (GND)
    		G - W-B
    		Power source
    		Always
    		11 to 14 V
    If the result is not as specified, there may be a malfunction on the wire harness side.

  3. Reconnect the G35 steering lock ECU connector.

  4. Measure the voltage according to the value(s) in the table below.

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    G35-3 (IGE) - G35-1 (GND)
    		W - W-B
    		Power source for motor drive
    		When all conditions are met:
    1. Steering lock unlocked
    2. Engine switch off
    3. Shift lever in P*
    4. Driver side door closed → opened
    		11 to 14 V (Steering lock motor not operating) → Below 1 V (Steering lock motor operating) → 11 to 14 V (Steering lock motor not operating)
    G35-4 (SLP1) - G35-1 (GND)
    		SB - W-B
    		Unlock position sensor output signal
    		Steering lock locked → steering lock unlocked
    		11 to 14 V → Below 1.2 V
    *: for Automatic Transmission
    If the result is not as specified, there may be a malfunction in the steering lock ECU.