Toyota CH-R Service Manual: Terminals Of Ecu

TERMINALS OF ECU

CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

*A

Main Body ECU (Multiplex Network Body ECU) with 2 Connectors

-

-

*1

Main Body ECU (Multiplex Network Body ECU)

-

-

*a

2 Connectors

-

-

*A

Main Body ECU (Multiplex Network Body ECU) with 1 Connector

-

-

*1

Main Body ECU (Multiplex Network Body ECU)

-

-

*a

1 Connector

-

-

(a) Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly.

Click here

(b) Reconnect the instrument panel junction block assembly connectors.

(c) 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

MB-11 (GND1) - Body ground

-

Ground

Always

Below 1 Ω

MB-31 (BECU) - Body ground

-

Battery power supply

Always

11 to 14 V

MB-30 (ACC) - Body ground

-

ACC power supply

Ignition switch ACC

11 to 14 V

MB-30 (ACC) - Body ground

-

ACC power supply

Ignition switch off

Below 1 V

MB-32 (IG) - Body ground

-

IG power supply

Ignition switch ON

11 to 14 V

MB-32 (IG) - Body ground

-

IG power supply

Ignition switch off

Below 1 V

(d) Install the main body ECU (multiplex network body ECU) to instrument panel junction block assembly.

Click here

(e) Measure the voltage and check for pulses according to the value(s) in the table below.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

F15-6 (FLCY) - Body ground

R - Body ground

Front door courtesy light switch (for LH) input

Front door LH open

Below 1 V

F15-6 (FLCY) - Body ground

R - Body ground

Front door courtesy light switch (for LH) input

Front door LH closed

Pulse generation

3A-41 (KSW) - Body ground

V - Body ground

Key unlock warning switch input

No key in ignition key cylinder

Pulse generation

3A-41 (KSW) - Body ground

V - Body ground

Key unlock warning switch input

Key in ignition key cylinder

Below 1 V

    Diagnosis System
    DIAGNOSIS SYSTEM CHECK DLC3 (a) Check the DLC3. Click here INSPECT BATTERY VOLTAGE (a) Measure the vehicle battery voltage. Standard Voltage: 11 to 14 V If the voltage is below 11 V, rech ...

    Data List / Active Test
    DATA LIST / ACTIVE TEST DATA LIST HINT: Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any part ...

    Other materials:

    Toyota CH-R Service Manual > Blind Spot Monitor System: Slave Module Horizontal Axis Misalignment (C1AC2)
    DESCRIPTION This DTC is stored when the angle of the blind spot monitor sensor RH (Slave) deviates more than the allowable range from the horizontal axis. HINT: If a drum tester such as a speedometer tester, brake/speedometer combination tester or chassis dynamometer is used with th ...

    Toyota CH-R Service Manual > Door Lock: Transmitter Battery(w/o Smart Key System)
    Components COMPONENTS ILLUSTRATION *1 TRANSMITTER BATTERY *2 TRANSMITTER HOUSING COVER *3 DOOR CONTROL TRANSMITTER PACKING *4 TRANSMITTER HOUSING CASE ...

    © 2017-2019 Copyright www.tochr.net
    0.02