Toyota Venza: Terminals Of Ecu

Toyota Venza Service Manual / Mirror (ext) / Power Mirror Control System(w/ Memory) / Terminals Of Ecu

TERMINALS OF ECU

1. CHECK OUTER MIRROR CONTROL ECU ASSEMBLY (DRIVER DOOR)

(a) Disconnect the I13 connector.

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

HINT:

Measure the values on the wire harness side with the connector disconnected.

Tester Connection	Wiring Color	Terminal Description	Condition	Specified Condition
I13-14 (BDR) - Body ground	V - Body ground	+B power supply	Always	11 to 14 V
I13-6 (CPUB) - Body ground	LG - Body ground	+B power supply	Always	11 to 14 V
I13-5 (SIG) - Body ground	L - Body ground	Ignition power supply	Ignition switch off → ON	0 V → 11 to 14 V
I13-7 (GND) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω

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

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

Tester Connection	Wiring Color	Terminal Description	Condition	Specified Condition
I12-1 (LMVR) - I12-9 (LMHR)	LG - P	Vertical mirror motor drive voltage	LH mirror surface moving upward → stopped	11 to 14 V → 0 V
I12-10 (LM+R) - I12-1 (LMVR)	R - LG	Vertical mirror motor drive voltage	LH mirror surface moving downward → stopped	11 to 14 V → 0 V
I12-10 (LM+R) - I12-9 (LMHR)	R - P	Horizontal mirror motor drive voltage	LH mirror surface moving right → stopped	11 to 14 V → 0 V
I12-9 (LMHR) - I12-1 (LMVR)	P - LG	Horizontal mirror motor drive voltage	LH mirror surface moving left → stopped	11 to 14 V → 0 V
I12-5 (LVC) - I12-14 (LE1)	Y - GR	Mirror position sensor power supply	Ignition switch ON	4.55 to 5.45 V
I12-6 (VSSR) - I12-14 (LE1)	G - GR	Mirror position sensor signal	Ignition switch ON	0.96 to 4.04 V
I12-13 (HSSR) - I12-14 (LE1)	L - GR	Mirror position sensor signal	Ignition switch ON	0.96 to 4.04 V
I13-3 (M2) - I13-13 (MSWE)	V - Y	M2 switch signal for seat memory switch	M2 switch on	Below 1 V
I13-3 (M2) - I13-13 (MSWE)	V - Y	M2 switch signal for seat memory switch	M2 switch off	11 to 14 V
I13-2 (M1) - I13-13 (MSWE)	B - Y	M1 switch signal for seat memory switch	M1 switch on	Below 1 V
I13-2 (M1) - I13-13 (MSWE)	B - Y	M1 switch signal for seat memory switch	M1 switch off	11 to 14 V
I13-1 (MM) - I13-13 (MSWE)	GR - Y	SET switch signal for seat memory switch	SET switch on	Below 1 V
I13-1 (MM) - I13-13 (MSWE)	GR - Y	SET switch signal for seat memory switch	SET switch off	11 to 14 V

2. CHECK OUTER MIRROR CONTROL ECU ASSEMBLY (FRONT PASSENGER DOOR)

(a) Disconnect the H13 connector.

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

HINT:

Measure the values on the wire harness side with the connector disconnected.

Tester Connection	Wiring Color	Terminal Description	Condition	Specified Condition
H13-14 (BDR) - Body ground	R - Body ground	+B power supply	Always	11 to 14 V
H13-6 (CPUB) - Body ground	B - Body ground	+B power supply	Always	11 to 14 V
H13-5 (SIG) - Body ground	L - Body ground	Ignition power supply	Ignition switch off → ON	0 V → 11 to 14 V
H13-7 (GND) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω

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

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

Tester Connection	Wiring Color	Terminal Description	Condition	Specified Condition
H12-1 (RMVR) - H12-9 (RMHR)	LG - P	Vertical mirror motor drive voltage	RH mirror surface moving upward → stopped	11 to 14 V → 0 V
H12-10 (RM+R) - H12-1 (RMVR)	R - LG	Vertical mirror motor drive voltage	RH mirror surface moving downward → stopped	11 to 14 V → 0 V
H12-10 (RM+R) - H12-9 (RMHR)	R - P	Horizontal mirror motor drive voltage	RH mirror surface moving right → stopped	11 to 14 V → 0 V
H12-9 (RMHR) - H12-1 (RMVR)	P - LG	Horizontal mirror motor drive voltage	RH mirror surface moving left → stopped	11 to 14 V → 0 V
H12-5 (RVC) - H12-14 (RE1)	Y - GR	Mirror position sensor power supply	Ignition switch ON	4.55 to 5.45 V
H12-6 (VSSR) - H12-14 (RE1)	G - GR	Mirror position sensor signal	Ignition switch ON	0.96 to 4.04 V
H12-13 (HSSR) - H12-14 (RE1)	L - GR	Mirror position sensor signal	Ignition switch ON	0.96 to 4.04 V

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