Toyota Sienna Service Manual: ABS Warning Light Remains ON

Toyota Sienna Service Manual: ABS Warning Light Remains ON

DESCRIPTION

If any of the following is detected, the ABS warning light remains on.

  • The skid control ECU connectors are disconnected from the skid control ECU.
  • There is a malfunction in the skid control ECU internal circuit.
  • There is an open in the harness between the combination meter and the skid control ECU.

HINT: In some cases, the intelligent tester cannot be used when the skid control ECU is abnormal.

WIRING DIAGRAM

WIRING DIAGRAM

INSPECTION PROCEDURE

1 INSPECT SKID CONTROL ECU CONNECTOR IS SECURELY CONNECTED

(a) Check the skid control ECU connector's connecting condition.

OK: The connector should be securely connected.

2 INSPECT BATTERY

(a) Check the battery voltage.

Standard voltage: 11 to 14 V

2 INSPECT BATTERY

(a) Check the battery voltage.

Standard voltage: 11 to 14 V

3 INSPECT SKID CONTROL ECU (IG1 TERMINAL VOLTAGE)

INSPECT SKID CONTROL ECU (IG1 TERMINAL VOLTAGE)

(a) Disconnect the skid control ECU connector.

(b) Turn the ignition switch to the ON position.

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

Standard voltage

4 INSPECT SKID CONTROL ECU (GND TERMINAL CONTINUITY)

INSPECT SKID CONTROL ECU (GND TERMINAL CONTINUITY)

(a) Turn the ignition switch off.

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

Standard resistance

5 CHECK HARNESS AND CONNECTOR (BETWEEN SKID CONTROL ECU AND COMBINATION METER ASSEMBLY)

CHECK HARNESS AND CONNECTOR (BETWEEN SKID CONTROL ECU AND COMBINATION METER ASSEMBLY)

(a) Disconnect the combination meter connector.

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

Standard resistance

6 INSPECT COMBINATION METER ASSEMBLY

(a) Check the combination meter (See page ME-4).

HINT: If troubleshooting has been carried out according to the PROBLEM SYMPTOMS TABLE, refer back to the table and proceed to the next step before replacing the part (See page BC-7).

REPLACE BRAKE ACTUATOR ASSEMBLY

Open in Pump Motor Circuit
DTC C1251/51 Open in Pump Motor Circuit DESCRIPTION The motor relay (semiconductor relay) is housed in the brake actuator assembly and drives the pump motor based on a signal from the skid contro ...
Other materials:

Intermediate Shaft Speed Sensor "A"
DESCRIPTION This sensor detects the rotation speed of the counter gear. By comparing the counter gear speed signal (NC) with the direct clutch speed sensor signal (NT), the ECM detects the shift timing of the gears and appropriately controls the engine torque and hydraulic pressure according ...

Video terminal
COMPONENTS REMOVAL 1. REMOVE REAR DOOR SCUFF PLATE LH 2. REMOVE REAR DOOR WEATHERSTRIP LH 3. REMOVE BACK DOOR WEATHERSTRIP 4. REMOVE BACK DOOR SCUFF PLATE 5. REMOVE QUARTER TRIM FRONT PANEL ASSEMBLY LH 6.

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  • Toyota Sienna Service Manual: ABS Warning Light Remains ON

    Toyota Sienna Service Manual: ABS Warning Light Remains ON

    Toyota Sienna Service Manual: ABS Warning Light Remains ON

    Toyota Sienna Service Manual: ABS Warning Light Remains ON

    Toyota Sienna Service Manual: ABS Warning Light Remains ON

    Toyota Sienna Service Manual: ABS Warning Light Remains ON

    Toyota Sienna Service Manual: ABS Warning Light Remains ON

    Toyota Sienna Service Manual: ABS Warning Light Remains ON

    Toyota Sienna Service Manual: ABS Warning Light Remains ON

    Toyota Sienna Service Manual: ABS Warning Light Remains ON

    Toyota Sienna Service Manual: ABS Warning Light Remains ON

    Toyota Sienna Service Manual: ABS Warning Light Remains ON

    Toyota Sienna Service Manual: ABS Warning Light Remains ON

    Toyota Sienna Service Manual: ABS Warning Light Remains ON

    Toyota Sienna Service Manual: ABS Warning Light Remains ON

    Toyota Sienna Service Manual: ABS Warning Light Remains ON

    Toyota Sienna Service Manual: ABS Warning Light Remains ON

    Toyota Sienna Service Manual: ABS Warning Light Remains ON

    Toyota Sienna Service Manual: ABS Warning Light Remains ON

    Toyota Sienna Service Manual: ABS Warning Light Remains ON

    Toyota Sienna Service Manual: ABS Warning Light Remains ON

    Toyota Sienna Service Manual: ABS Warning Light Remains ON

    Toyota Sienna Service Manual: ABS Warning Light Remains ON

    Toyota Sienna Service Manual: ABS Warning Light Remains ON

    Toyota Sienna Service Manual: ABS Warning Light Remains ON

    Toyota Sienna Service Manual: ABS Warning Light Remains ON

    Toyota Sienna Service Manual: ABS Warning Light Remains ON

    Toyota Sienna Service Manual: ABS Warning Light Remains ON

    Toyota Sienna Service Manual: ABS Warning Light Remains ON