Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Terminals Of Ecu

TERMINALS OF ECU

CHECK 4WD ECU ASSEMBLY

(a) Measure the voltage and resistance of the connector.

Terminal No. (Symbol)

Terminal Description

Condition

Specified Condition

O201-6 (CANH) - O201-5 (CANL)

CAN communication line

Cable disconnected from negative (-) auxiliary battery terminal

54 to 69 Ω

O201-4 (GND) - Body ground

Ground

Always

Below 1 Ω

O201-3 (IG1) - O201-4 (GND)

Power source voltage

Ignition switch ON

11 to 14 V

O201-2 (SLC+) - O201-1 (SLC-)

4WD linear solenoid signal

D position, engine idling

Pulse generation (See waveform 1)

If the result is not as specified, the 4WD ECU assembly may have a malfunction.

(b) Using an oscilloscope, check the waveform 1.

Waveform 1 (Reference)

Item

Content

Terminal No. (Symbol)

O201-2 (SLC+) - O201-1 (SLC-)

Tester Range

2 V/DIV., 1 msec./DIV.

Condition

D position, Idling

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