FRONT POWER SEAT CONTROL SYSTEM (w/ Memory) > TERMINALS OF ECU |
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CHECK FRONT POWER SEAT SWITCH LH |
Disconnect the Z9 and Z10 switch connectors.
Measure the voltage and resistance according to the value(s) in the table below.
If the result is not as specified, there may be a malfunction on the wire harness side.Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition Z9-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω Z9-5 (+B) - Z9-1 (GND) L - W-B Battery (ECU power source) Always 11 to 14 V Z10-8 (SYSB) - Z9-1 (GND) R - W-B Battery (ECU power source) Always 11 to 14 V Reconnect the Z9 and Z10 switch connectors.
Measure the voltage according to the value(s) in the table below.
If the result is not as specified, the ECU may have a malfunction.Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition Z9-2 (SLD+) - Z9-1 (GND) P - W-B Sliding motor signal (forward) Seat moving forward using sliding switch 11 to 14 V Other Below 1 V Z9-3 (SLD-) - Z9-1 (GND) R - W-B Sliding motor signal (rearward) Seat moving rearward using sliding switch 11 to 14 V Other Below 1 V Z9-6 (FRV+) - Z9-1 (GND) LG - W-B Front vertical motor signal (upward) Seat cushion front portion rising using front vertical switch 11 to 14 V Other Below 1 V Z9-4 (FRV-) - Z9-1 (GND) W - W-B Front vertical motor signal (downward) Seat cushion front portion lowering using front vertical switch 11 to 14 V Other Below 1 V Z9-8 (RCL+) - Z9-1 (GND) BE - W-B Reclining motor signal (forward) Seatback moving forward using reclining switch 11 to 14 V Other Below 1 V Z9-10 (RCL-) - Z9-1 (GND) B - W-B Reclining motor signal (rearward) Seatback moving rearward using reclining switch 11 to 14 V Other Below 1 V Z9-7 (LFT+) - Z9-1 (GND) G - W-B Lifter motor signal (upward) Seat cushion rising using lifter switch 11 to 14 V Other Below 1 V Z9-9 (LFT-) - Z9-1 (GND) Y - W-B Lifter motor signal (downward) Seat cushion lowering using lifter switch 11 to 14 V Other Below 1 V
CHECK OUTER MIRROR CONTROL ECU |
Disconnect the N7 ECU connector.
Measure the voltage and resistance according to the value(s) in the table below.
If the result is not as specified, there may be a malfunction on the wire harness side.Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition N7-9 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω N7-3 (B) - N7-9 (GND) R - W-B Battery (ECU power source) Always 11 to 14 V N7-4 (ACC) - N7-9 (GND) Y - W-B Ignition power supply Ignition switch OFF Below 1 V Ignition switch ON 11 to 14 V Reconnect the N7 ECU connector.
Measure the voltage according to the value(s) in the table below.
If the result is not as specified, the ECU may have a malfunction.Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition N8-8 (M1) - N8-10 (MSWE) P - V Memory 1 switch signal Memory 1 switch OFF 11 to 14 V Memory 1 switch ON Below 1 V N8-7 (M2) - N8-10 (MSWE) BE - V Memory 2 switch signal Memory 2 switch OFF 11 to 14 V Memory 2 switch ON Below 1 V N8-9 (MM) - N8-10 (MSWE) L - V Memory SET switch signal Memory SET switch OFF 11 to 14 V Memory SET switch ON Below 1 V