Toyota RAV4 manuals

Toyota Sienna Service Manual: ABS Warning Light Remains ON

DESCRIPTION

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

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 ...

ABS Warning Light does not Come ON
WIRING DIAGRAM See page BC-47. INSPECTION PROCEDURE 1 INSPECT ABS WARNING LIGHT (a) Disconnect the skid control ECU connector. (b) Turn the ignition switch to the ON position. (c) Check that ...

Other materials:

Jam Protection Function Activates During Power Slide Door LH Operation
DESCRIPTION  It may be caused by ill-fitting slide door, faulty touch sensor or faulty pulse sensor.  The power slide door ECU activates the slide motor to open / close the power slide door, thus controlling the power slide door operation. For jam and foreign object detect ...

Operation check
1. DETECTION RANGE MEASUREMENT AND INDICATOR CHECK  Turn the IG switch ON.  Move the shift lever to the R position (when the back sonar and rear clearance sonar is checked).  With front clearance sonar: Move the shift lever to the N position (when the front clearance son ...

DTC check / clear
HINT:  Illustrations may differ from the actual vehicle depending on the device settings and options. Therefore, some detailed areas may not be shown exactly the same as on the actual vehicle.  If the system cannot enter the diagnostic mode, inspect all AVC-LAN communication ...

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