Toyota RAV4 manuals

Toyota Sienna Service Manual: Open in Stop Light Switch Circuit

DTC C1249/49 Open in Stop Light Switch Circuit

DESCRIPTION

Open in Stop Light Switch Circuit

WIRING DIAGRAM

Open in Stop Light Switch Circuit

Open in Stop Light Switch Circuit

INSPECTION PROCEDURE

1 CHECK STOP LIGHT SWITCH OPERATION

(a) Check that the stop light comes on when the brake pedal is depressed and goes off when the brake pedal is released.

OK

HINT: Check the stop light bulb as it may have burnt out.

2 INSPECT SKID CONTROL ECU (STP1 TERMINAL)

INSPECT SKID CONTROL ECU (STP1 TERMINAL)

(a) Disconnect the skid control ECU connector.

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

Standard voltage

3 RECONFIRM DTC

(a) Clear the DTCs (See page BC-82).

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

(c) Are the same DTCs detected?

Result

NOTICE: When replacing the brake actuator assembly, perform zero point calibration (See page BC-70).

REPLACE BRAKE ACTUATOR ASSEMBLY

4 INSPECT STOP LIGHT SWITCH

INSPECT STOP LIGHT SWITCH

(a) Disconnect the stop light switch assembly connector.

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

Standard resistance

5 CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH - SKID CONTROL ECU)

CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH - SKID CONTROL ECU)

(a) Disconnect the stop light switch connector and skid control ECU connector.

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

Standard resistance

NOTICE: When replacing the brake actuator assembly, perform zero point calibration (See page BC-70).

REPLACE BRAKE ACTUATOR ASSEMBLY

Master Cylinder Pressure Sensor Malfunction
DTC C1246/46 Master Cylinder Pressure Sensor Malfunction DESCRIPTION Master cylinder pressure sensor is connected to the skid control ECU in the actuator. INSPECTION PROCEDURE 1 READ VALUE O ...

Open in Pump Motor Circuit
DTC C1251/51 Open in Pump Motor Circuit DESCRIPTION WIRING DIAGRAM INSPECTION PROCEDURE 1 PERFORM ACTIVE TEST USING INTELLIGENT TESTER (ABS MOTOR RELAY) (a) Connect the intelligent tester ...

Other materials:

Data list / active test
1. DATA LIST HINT: Using the intelligent tester to read the DATA LIST allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered ...

How to proceed with troubleshooting
1 VEHICLE BROUGHT TO WORKSHOP 2 CUSTOMER PROBLEM ANALYSIS 3 CHECK AND CLEAR DTCs Refer to the diagnostic check/clear 4 PROBLEM SYMPTOM CONFIRMATION 5 SYMPTOM SIMULATION 6 CHECK DTC 7 CHECK IF THE SAME SYMPTOM APPEARS IN THE NAVIGATION SYSTEM Refer to the navigation system 8 PROBLE ...

On-vehicle inspection
1. INSPECT FRONT PASSENGER AIRBAG ASSEMBLY (VEHICLE NOT INVOLVED IN COLLISION)  Perform a diagnostic system check.  With the front passenger airbag assembly installed on the vehicle, perform a visual check. If there are any defects as mentioned below, replace the instrumen ...

В© 2011-2019 Copyright www.tsienna.net