Terminals Of Ecu
WARNING: This page is about a different car, the 2008 Lexus LS 600hL. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK STEERING LOCK ECU
- Disconnect the L33 steering lock ECU connector.
- Measure the voltage and resistance according to the value(s) in the table below.TERMINAL DESCRIPTION SPECIFIED CONDITION CHART
Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition L33-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω L33-2 (SGND) - Body ground BR - Body ground Signal ground Always Below 1 Ω L33-6 (IG2) - L33-1 (GND) L - W-B IG signal input Power switch ON (IG) 11 to 14 V L33-7 (B) - L33-1 (GND) P - 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 L33 steering lock ECU connector.
- Measure the voltage according to the value(s) in the table below.TERMINAL DESCRIPTION SPECIFIED CONDITION CHART
Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition L33-3 (IGE) - L33-1 (GND) SB - W-B Power source for motor drive Motor operating Below 1 V L33-3 (IGE) - L33-1 (GND) SB - W-B Power source for motor drive Motor not operating 11 to 14 V L33-4 (SLP1) - L33-2 (SGND) LG - BR Unlock position sensor output signal Steering locked 11 to 14 V L33-4 (SLP1) - L33-2 (SGND) LG - BR Unlock position sensor output signal Steering lock unlocked Below 1 V L33-5 (LIN) - L33-2 (SGND) O - BR LIN communication bus Power switch ON (IG) Pulse generation If the result is not as specified, there may be a malfunction on the wire harness side.