Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Terminals Of Ecu

Toyota Corolla Cross (2022-2025) Service Manual / Brake / Parking Brake / Electric Parking Brake System (for Gasoline Model) / Terminals Of Ecu

TERMINALS OF ECU

CHECK SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)

*a

Front view of wire harness connector

(to Skid Control ECU (Brake Actuator Assembly))

-

-

(a) Disconnect the A151 skid control ECU (brake actuator assembly) connector.

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

Terminal No. (Symbol)

Terminal Description

Condition

Specified Condition

A151-30 (+BS) - Body ground

Parking brake motor power supply

Always

11 to 14 V

A151-36 (IGR) - Body ground

IG power supply

Ignition switch ON

10.5 to 16 V

A151-46 (GND1) - Body ground

Ground

1 minute or more after disconnecting the cable from the negative (-) auxiliary battery terminal

Below 1 Ω

A151-14 (GND2) - Body ground

Ground

1 minute or more after disconnecting the cable from the negative (-) auxiliary battery terminal

Below 1 Ω

A151-2 (MRR+) - Body ground

Parking brake motor RH (parking brake actuator assembly RH) (+)

-

-

A151-3 (MRR-) - Body ground

Parking brake motor RH (parking brake actuator assembly RH) (-)

-

-

A151-13 (MRL+) - Body ground

Parking brake motor LH (parking brake actuator assembly LH) (+)

-

-

A151-12 (MRL-) - Body ground

Parking brake motor LH (parking brake actuator assembly LH) (-)

-

-

A151-18 (POL) - Body ground

Electric parking brake switch indicator light

-

-

A151-31 (SWI1) - Body ground

Electric parking brake switch (electric parking brake switch assembly)

-

-

A151-32 (SWO1) - Body ground

Electric parking brake switch (electric parking brake switch assembly)

-

-

A151-15 (SWI2) - Body ground

Electric parking brake switch (electric parking brake switch assembly)

-

-

A151-16 (SWO2) - Body ground

Electric parking brake switch (electric parking brake switch assembly)

-

-

A151-5 (CANH) - Body ground

CAN communication line H

-

-

A151-19 (CANL) - Body ground

CAN communication line L

-

-

A151-11 (CA2H)

CAN communication line 2 (H)

-

-

A151-25 (CA2L)

CAN communication line 2 (L)

-

-

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