Terminals Of Ecu
- CHECK STEERING LOCK ECU
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- Disconnect the F68 steering lock ECU connector.
- Measure the voltage and resistance according to the value(s) in the table below.
Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition F68-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω F68-6 (IG2) - F68-1 (GND) W - W-B IG2 signal input Engine switch off → engine switch on (IG) Below 1 V → 11 to 14 V F68-7 (B) - F68-1 (GND) GR - 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.
- Reconnect the F68 steering lock ECU connector.
- Measure the voltage according to the value(s) in the table below.
Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition F68-3 (IGE) - F68-1 (GND) GR - W-B Power source for motor drive When all conditions are met: - Steering lock unlocked
- Engine switch off
- Shift lever in P
- 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) F68-4 (SLP1) - F68-1 (GND) SB - 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 steering lock ECU.