Toyota CH-R Service Manual: Terminals Of Ecu

Toyota CH-R Service Manual / Parking Brake / Electric Parking Brake System / Terminals Of Ecu

TERMINALS OF ECU

CHECK SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)

Component without harness connected

(Skid Control ECU (Brake Actuator Assembly))

(a) Disconnect the A42 skid control ECU (brake actuator assembly) connectors.

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

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
A42-30 (+BS) - Body ground	W	Parking brake motor (parking brake actuator assembly) power supply	Always	11 to 14 V
A42-36 (IG1) - Body ground	B	IG power supply	Ignition switch ON	11 to 14 V
A42-46 (GND1) - Body ground	W-B	Ground	Always	Below 1 Ω
A42-14 (GND2) - Body ground	W-B	Ground	Always	Below 1 Ω
A42-2 (MRR+) - Body ground	B	Parking brake motor RH (parking brake actuator assembly RH) (+)	-	-
A42-3 (MRR-) - Body ground	B	Parking brake motor RH (parking brake actuator assembly RH) (-)	-	-
A42-13 (MRL+) - Body ground	R	Parking brake motor LH (parking brake actuator assembly LH) (+)	-	-
A42-12 (MRL-) - Body ground	L	Parking brake motor LH (parking brake actuator assembly LH) (-)	-	-
A42-35 (POL) - Body ground	V	Electric parking brake switch indicator light	-	-
A42-31 (SWI1) - Body ground	B	Electric parking brake switch (electric parking brake switch assembly)	-	-
A42-15 (SWI2) - Body ground	LG	Electric parking brake switch (electric parking brake switch assembly)	-	-
A42-32 (SWO1) - Body ground	P	Electric parking brake switch (electric parking brake switch assembly)	-	-
A42-16 (SWO2) - Body ground	L	Electric parking brake switch (electric parking brake switch assembly)	-	-

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