Toyota Avalon Service & Repair Manual: Terminals Of Ecu

TERMINALS OF ECU

CHECK SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY)

(a) Disconnect the O3 sliding roof ECU (sliding roof drive gear assembly) connector.

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

HINT:

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

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
O3-1 (B) - O3-2 (E)	B - W-B	Auxiliary battery power supply	Power switch off	11 to 14 V
O3-6 (IG) - O3-2 (E)	LA-GR - W-B	IG power supply	Power switch off	Below 1 V
O3-6 (IG) - O3-2 (E)	LA-GR - W-B	IG power supply	Power switch on (IG)	11 to 14 V
O3-2 (E) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω

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

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
O3-10 (OPN) - O3-2 (E)	W - W-B	Sliding roof motor open	Power switch on (IG), OPEN switch on	Below 1 V
O3-10 (OPN) - O3-2 (E)	W - W-B	Sliding roof motor open	Power switch on (IG), OPEN switch off	11 to 14 V
O3-8 (CLS) - O3-2 (E)	SB - W-B	Sliding roof motor close	Power switch on (IG), CLOSE switch on	Below 1 V
O3-8 (CLS) - O3-2 (E)	SB - W-B	Sliding roof motor close	Power switch on (IG), CLOSE switch off	11 to 14 V
O3-5 (UP) - O3-2 (E)	R - W-B	Sliding roof motor up	Power switch on (IG), UP switch on	Below 1 V
O3-5 (UP) - O3-2 (E)	R - W-B	Sliding roof motor up	Power switch on (IG), UP switch off	11 to 14 V
O3-9 (DWN) - O3-2 (E)	LG - W-B	Sliding roof motor down	Power switch on (IG), DOWN switch on	Below 1 V
O3-9 (DWN) - O3-2 (E)	LG - W-B	Sliding roof motor down	Power switch on (IG), DOWN switch off	11 to 14 V

CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

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Toyota Avalon Service & Repair Manual > Navigation System(for Gasoline Model): Speaker Output Short (B15C3)
DESCRIPTION This DTC is stored when a malfunction occurs in the speakers. DTC No. Detection Item DTC Detection Condition Trouble Area B15C3 Speaker Output Short A short is detected in the speaker output circuit Harness or connector Speaker DCM (telematics transceiver)* Stereo Component Amplifier *: ...

Toyota Avalon Owners Manual