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 > Automatic Headlight Beam Level Control System: System Description
    SYSTEM DESCRIPTION AUTOMATIC HEADLIGHT BEAM LEVEL CONTROL (a) General The automatic headlight beam level control system ensures forward visibility and prevents dazzling of drivers in oncoming and preceding vehicles by controlling the headlight beam level vertically when the weight of passenge ...

    Toyota CH-R Service Manual > Air Conditioning System(for Automatic Air Conditioning System With Top-mounted Air Conditioner Pressure Sensor): Problem Symptoms Table
    PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each sy ...

    Toyota CH-R Owners Manual

    Toyota CH-R Service Manual

    © 2017-2024 Copyright www.tochr.net
    0.0121