Terminals Of Ecu

CHECK REAR SUNSHADE RELAY

Fig 1: Identifying Terminals Of Q24 Relay Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the voltage and resistance of the wire harness side connector.

TERMINALS VOLTAGE CHART

Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specified Condition
IG (Q24-1) - E (Q24-5)	Y - W-B	Power source (IG)	Engine switch off	Below 1 V
IG (Q24-1) - E (Q24-5)	Y - W-B	Power source (IG)	Engine switch on (IG)	10 to 14 V
SW (Q24-3) - E (Q24-5)	L - W-B	Rear sunshade switch signal	Engine switch on (IG) Rear sunshade switch OFF	10 kΩ or higher
SW (Q24-3) - E (Q24-5)	L - W-B	Rear sunshade switch signal	Engine switch on (IG) Rear sunshade switch ON	Below 1 Ω
E (Q24-5) - 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 connector.

Measure the voltage of the wire harness side connector.

TERMINALS VOLTAGE CHART

Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specified Condition
REV (Q24-2) - Body ground	R - Body ground	Reverse signal	Engine switch on (IG), shift lever on except R	Below 1 V
REV (Q24-2) - Body ground	R - Body ground	Reverse signal	Engine switch on (IG), shift lever on R	10 to 14 V
SW (Q24-3) - Body ground	L - Body ground	Rear sunshade switch signal	Engine switch on (IG), rear sunshade switch not pushed	10 to 14 V
SW (Q24-3) - Body ground	L - Body ground	Rear sunshade switch signal	Engine switch on (IG), rear sunshade switch pushed	Below 1.5 V

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