Toyota CH-R Service Manual: TC and CG Terminal Circuit

DESCRIPTION

DTC output mode is set by connecting terminals TC and CG of the DLC3.

DTCs are displayed by blinking of the SRS warning light.

HINT:

  • When multiple warning lights in the combination meter blink continuously, a short to ground in the wiring or an ECU connected to terminal TC of the DLC3 is suspected.
  • A DTC output mode signal is transmitted via CAN communication to each ECU including the airbag sensor assembly. Thus when multiple systems do not enter DTC output mode, there may be a malfunction in the ECM.

WIRING DIAGRAM

PROCEDURE

1.

CHECK WIRE HARNESS (TC OF DLC3 - TC OF ECM)

(a) Turn the ignition switch off.

*1

DLC3

*a

Front view of wire harness connector

(to ECM)

(b) Disconnect the connector from the ECM.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

F41-13 (TC) - A38-33 (TC)

Always

Below 1 Ω

NG

REPAIR OR REPLACE WIRE HARNESS

OK

2.

CHECK WIRE HARNESS (CG OF DLC3 - BODY GROUND)

(a) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

F41-4 (CG) - Body ground

Always

Below 1 Ω

*1

DLC3

NG

REPAIR OR REPLACE WIRE HARNESS

OK

3.

CHECK WIRE HARNESS (TC OF DLC3 - BODY GROUND)

(a) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

F41-13 (TC) - Body ground

Always

1 MΩ or higher

*1

DLC3

OK

REPLACE AIRBAG SENSOR ASSEMBLY

NG

REPAIR OR REPLACE WIRE HARNESS OR REPLACE EACH ECU

    Trouble in Passenger Airbag ON/OFF Indicator
    DESCRIPTION This circuit detects the airbag cut off switch cylinder sub-assembly status. The passenger airbag ON/OFF indicator comes on to inform the driver of the instrument panel passenger witho ...

    Center Airbag Sensor Assembly
    ...

    Other materials:

    Toyota CH-R Service Manual > Audio And Visual System(for Radio Receiver Type): Illumination Circuit
    DESCRIPTION Power is supplied to the radio receiver assembly and steering pad switch assembly illumination when the light control switch is in the tail or head position. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: The vehicle is equipped with a Supplemental Restraint System (SRS) ...

    Toyota CH-R Service Manual > Toyota Entune System: Does not Recognize Voice Commands Performed to Contact Support Center
    PROCEDURE 1. CHECK COMMUNICATION BASED VOICE RECOGNITION FUNCTION (a) While paying attention to the condition of the spoken voice command, say "Find a gas station in New York" and check that voice recognition is operating normally. HINT: When t ...

    Toyota C-HR (AX20) 2023-2026 Owner's Manual

    Toyota CH-R Owners Manual

    Toyota CH-R Service Manual

    © 2017-2026 Copyright www.tochr.net
    0.0083