FRONT POWER SEAT CONTROL SYSTEM

CHECK FRONT POWER SEAT SWITCH (for LHD)

Disconnect the c62 and c63 switch connectors.

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

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
c62-1 (GND) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
c62-6 (+B) - c62-1 (GND)	L - W-B	Power source	Always	11 to 14 V
c63-12 (SYSB) - c62-1 (GND)	R - W-B	System 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 c62 and c63 switch connectors.

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

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
c62-2 (SLD+) - c62-1 (GND)	B - W-B	Sliding motor signal (forward)	Slide switch off	Below 1 V
c62-2 (SLD+) - c62-1 (GND)	B - W-B	Sliding motor signal (forward)	Slide switch front on	11 to 14 V
c62-4 (SLD-) - c62-1 (GND)	P - W-B	Sliding motor signal (rearward)	Slide switch off	Below 1 V
c62-4 (SLD-) - c62-1 (GND)	P - W-B	Sliding motor signal (rearward)	Slide switch rear on	11 to 14 V
c62-7 (FRV+) - c62-1 (GND)	R - W-B	Front vertical motor signal (upward)	Front vertical switch off	Below 1 V
c62-7 (FRV+) - c62-1 (GND)	R - W-B	Front vertical motor signal (upward)	Front vertical switch up on	11 to 14 V
c62-5 (FRV-) - c62-1 (GND)	LG - W-B	Front vertical motor signal (downward)	Front vertical switch off	Below 1 V
c62-5 (FRV-) - c62-1 (GND)	LG - W-B	Front vertical motor signal (downward)	Front vertical switch down on	11 to 14 V
c62-8 (LFT+) - c62-1 (GND)	G - W-B	Lifter motor signal (upward)	Lifter switch off	Below 1 V
c62-8 (LFT+) - c62-1 (GND)	G - W-B	Lifter motor signal (upward)	Lifter switch up on	11 to 14 V
c62-11 (LFT-) - c62-1 (GND)	W - W-B	Lifter motor signal (downward)	Lifter switch off	Below 1 V
c62-11 (LFT-) - c62-1 (GND)	W - W-B	Lifter motor signal (downward)	Lifter switch down on	11 to 14 V
c62-9 (RCL+) - c62-1 (GND)	GR - W-B	Reclining motor signal (forward)	Reclining switch off	Below 1 V
c62-9 (RCL+) - c62-1 (GND)	GR - W-B	Reclining motor signal (forward)	Reclining switch front on	11 to 14 V
c62-12 (RCL-) - c62-1 (GND)	Y - W-B	Reclining motor signal (rearward)	Reclining switch off	Below 1 V
c62-12 (RCL-) - c62-1 (GND)	Y - W-B	Reclining motor signal (rearward)	Reclining switch rear on	11 to 14 V
c63-4 (DBCL) - c62-1 (GND)	G - W-B	Buckle switch signal	Engine switch off, Driver side seat belt is fastened	Below 1 V
c63-4 (DBCL) - c62-1 (GND)	G - W-B	Buckle switch signal	Engine switch off, Driver side seat belt is unfastened	11 to 14 V
c63-4 (DBCL) - c62-1 (GND)	G - W-B	Buckle switch signal	Engine switch on (IG), Driver side seat belt is fastened	Below 1 V
c63-4 (DBCL) - c62-1 (GND)	G - W-B	Buckle switch signal	Engine switch on (IG), Driver side seat belt is unfastened	11 to 14 V

If the result is not as specified, the front power seat switch may have a malfunction.

CHECK FRONT POWER SEAT SWITCH (for RHD)

Disconnect the c57 and c58 switch connectors.

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

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
c57-1 (GND) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
c57-6 (+B) - c57-1 (GND)	L - W-B	Power source	Always	11 to 14 V
c58-12 (SYSB) - c57-1 (GND)	R - W-B	System 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 c57 and c58 switch connectors.

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

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
c57-2 (SLD+) - c57-1 (GND)	B - W-B	Sliding motor signal (forward)	Slide switch off	Below 1 V
c57-2 (SLD+) - c57-1 (GND)	B - W-B	Sliding motor signal (forward)	Slide switch front on	11 to 14 V
c57-4 (SLD-) - c57-1 (GND)	P - W-B	Sliding motor signal (rearward)	Slide switch off	Below 1 V
c57-4 (SLD-) - c57-1 (GND)	P - W-B	Sliding motor signal (rearward)	Slide switch rear on	11 to 14 V
c57-7 (FRV+) - c57-1 (GND)	R - W-B	Front vertical motor signal (upward)	Front vertical switch off	Below 1 V
c57-7 (FRV+) - c57-1 (GND)	R - W-B	Front vertical motor signal (upward)	Front vertical switch up on	11 to 14 V
c57-5 (FRV-) - c57-1 (GND)	LG - W-B	Front vertical motor signal (downward)	Front vertical switch off	Below 1 V
c57-5 (FRV-) - c57-1 (GND)	LG - W-B	Front vertical motor signal (downward)	Front vertical switch down on	11 to 14 V
c57-8 (LFT+) - c57-1 (GND)	G - W-B	Lifter motor signal (upward)	Lifter switch off	Below 1 V
c57-8 (LFT+) - c57-1 (GND)	G - W-B	Lifter motor signal (upward)	Lifter switch up on	11 to 14 V
c57-11 (LFT-) - c57-1 (GND)	W - W-B	Lifter motor signal (downward)	Lifter switch off	Below 1 V
c57-11 (LFT-) - c57-1 (GND)	W - W-B	Lifter motor signal (downward)	Lifter switch down on	11 to 14 V
c57-9 (RCL+) - c57-1 (GND)	GR - W-B	Reclining motor signal (forward)	Reclining switch off	Below 1 V
c57-9 (RCL+) - c57-1 (GND)	GR - W-B	Reclining motor signal (forward)	Reclining switch front on	11 to 14 V
c57-12 (RCL-) - c57-1 (GND)	Y - W-B	Reclining motor signal (rearward)	Reclining switch off	Below 1 V
c57-12 (RCL-) - c57-1 (GND)	Y - W-B	Reclining motor signal (rearward)	Reclining switch rear on	11 to 14 V
c58-4 (DBCL) - c57-1 (GND)	G - W-B	Buckle switch signal	Engine switch off, Driver side seat belt is fastened	Below 1 V
c58-4 (DBCL) - c57-1 (GND)	G - W-B	Buckle switch signal	Engine switch off, Driver side seat belt is unfastened	11 to 14 V
c58-4 (DBCL) - c57-1 (GND)	G - W-B	Buckle switch signal	Engine switch on (IG), Driver side seat belt is fastened	Below 1 V
c58-4 (DBCL) - c57-1 (GND)	G - W-B	Buckle switch signal	Engine switch on (IG), Driver side seat belt is unfastened	11 to 14 V

If the result is not as specified, the front power seat switch may have a malfunction.

CHECK OUTER MIRROR CONTROL ECU (for LHD)

Disconnect the I17 and I18 ECU connectors.

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

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
I18-10 (MSWE) - I17-9 (GND)	BR - W-B	Ground for seat memory switch	Always	Below 1 Ω
I17-9 (GND) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
I17-3 (B) - I17-9 (GND)	R - W-B	Battery (ECU power source)	Always	11 to 14 V
I17-4 (ACC) - I17-9 (GND)	GR - W-B	Engine switch (ACC) power source supply	Engine switch off	Below 1 V
I17-4 (ACC) - I17-9 (GND)	GR - W-B	Engine switch (ACC) power source supply	Engine switch on (ACC)	11 to 14 V

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

Reconnect the I17 and I18 ECU connectors.

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

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
I18-6 (M3) - I18-10 (MSWE)	R - BR	Seat memory switch 3 signal for seat memory switch	Seat memory switch 3 on	11 to 14 V
I18-6 (M3) - I18-10 (MSWE)	R - BR	Seat memory switch 3 signal for seat memory switch	Seat memory switch 3 off	Below 1 V
I18-7 (M2) - I18-10 (MSWE)	W - BR	Seat memory switch 2 signal for seat memory switch	Seat memory switch 2 on	11 to 14 V
I18-7 (M2) - I18-10 (MSWE)	W - BR	Seat memory switch 2 signal for seat memory switch	Seat memory switch 2 off	Below 1 V
I18-8 (M1) - I18-10 (MSWE)	G - BR	Seat memory switch 1 signal for seat memory switch	Seat memory switch 1 on	11 to 14 V
I18-8 (M1) - I18-10 (MSWE)	G - BR	Seat memory switch 1 signal for seat memory switch	Seat memory switch 1 off	Below 1 V
I18-9 (MM) - I18-10 (MSWE)	B - BR	Seat memory SET switch signal for seat memory switch	Seat memory SET switch on	11 to 14 V
I18-9 (MM) - I18-10 (MSWE)	B - BR	Seat memory SET switch signal for seat memory switch	Seat memory SET switch off	Below 1 V

If the result is not as specified, the outer mirror control ECU may have a malfunction.

CHECK OUTER MIRROR CONTROL ECU (for RHD)

Disconnect the I31 and I32 ECU connectors.

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

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
I32-10 (MSWE) - I31-9 (GND)	BR - W-B	Ground for seat memory switch	Always	Below 1 Ω
I31-9 (GND) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
I31-3 (B) - I31-9 (GND)	R - W-B	Battery (ECU power source)	Always	11 to 14 V
I31-4 (ACC) - I31-9 (GND)	GR - W-B	Engine switch (ACC) power source supply	Engine switch off	Below 1 V
I31-4 (ACC) - I31-9 (GND)	GR - W-B	Engine switch (ACC) power source supply	Engine switch on (ACC)	11 to 14 V

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

Reconnect the I31 and I32 ECU connectors.

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

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
I32-6 (M3) - I32-10 (MSWE)	R - BR	Seat memory switch 3 signal for seat memory switch	Seat memory switch 3 on	11 to 14 V
I32-6 (M3) - I32-10 (MSWE)	R - BR	Seat memory switch 3 signal for seat memory switch	Seat memory switch 3 off	Below 1 V
I32-7 (M2) - I32-10 (MSWE)	W - BR	Seat memory switch 2 signal for seat memory switch	Seat memory switch 2 on	11 to 14 V
I32-7 (M2) - I32-10 (MSWE)	W - BR	Seat memory switch 2 signal for seat memory switch	Seat memory switch 2 off	Below 1 V
I32-8 (M1) - I32-10 (MSWE)	G - BR	Seat memory switch 1 signal for seat memory switch	Seat memory switch 1 on	11 to 14 V
I32-8 (M1) - I32-10 (MSWE)	G - BR	Seat memory switch 1 signal for seat memory switch	Seat memory switch 1 off	Below 1 V
I32-9 (MM) - I32-10 (MSWE)	B - BR	Seat memory SET switch signal for seat memory switch	Seat memory SET switch on	11 to 14 V
I32-9 (MM) - I32-10 (MSWE)	B - BR	Seat memory SET switch signal for seat memory switch	Seat memory SET switch off	Below 1 V

If the result is not as specified, the outer mirror control ECU may have a malfunction.

FRONT POWER SEAT CONTROL SYSTEM TERMINALS OF ECU