Terminals Of Ecu [03/2012 - ]

STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY)

Disconnect the F37 steering lock ECU connector.

Fig 1: Steering Lock ECU Connector Terminal Identification (Steering Lock Actuator Assembly)
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Measure the voltage and resistance according to the value(s) in the table below.

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
F37-1 (GND) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
F37-6 (IG2) - F37-1 (GND)	B - W-B	IG2 signal input	Engine switch off → engine switch on (IG)	Below 1 V → 11 to 14 V
F37-7 (B) - F37-1 (GND)	L - W-B	Power source	Always	11 to 14 V

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

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
F37-3 (IGE) - F37-1 (GND)	L - W-B	Power source for driving motor	When all of the following conditions are met: Steering lock unlocked Engine switch off Shift lever in P Driver side door close to open	11 to 14 V (Steering lock motor not operating) → Below 1 V (Steering lock motor operating)
F37-4 (SLP1) - F37-1 (GND)	G - W-B	Unlock position sensor output signal	Steering lock locked → steering lock unlocked	11 to 14 V → Below 1.2 V

If the result is not as specified, there may be a malfunction in the wire harness.