Toyota RAV4 manuals

Toyota Sienna Service Manual: Diagnosis system

1. DIAGNOSIS FUNCTION

DIAGNOSIS FUNCTION

  1.  The diagnosis function makes the light and the multi-information display come on, and the CRUISE main indicator light blink as shown in the illustration.

    When a malfunction occurs in the dynamic laser cruise control system, the DTCs are stored in the ECM.

DIAGNOSIS FUNCTION

NOTICE:

2. DESCRIPTION

  1.  The ECM controls the dynamic laser cruise control system of the vehicle. The data and DTCs relating to the dynamic laser cruise control system can be read from the DLC3 of the vehicle. If the CRUISE main indicator light does not come on after the DTC check, there may be a problem with either the combination meter or the CAN communication and multiplex communication systems. Use the intelligent tester to check and solve the problem.

3. CHECK DLC3

CHECK DLC3

  1.  The vehicle's ECM uses the ISO 15765-4 for communication protocol. The terminal arrangement of the DLC3 complies with SAE J1962 and matches the ISO 15765-4 format.

CHECK DLC3

NOTICE: *: Before measuring the resistance, leave the vehicle for at least 1 minute and do not operate the ignition switch, any other switches, or doors.

If the result is not as specified, the DLC3 may have a malfunction. Repair or replace the harness and connector.

Connect the cable of the intelligent tester to the DLC3, turn the ignition switch to the ON position and attempt to use the tester. If the display indicates that a communication error has occurred, there is a problem either with the vehicle or with the tester.

4. CHECK INDICATOR

CHECK INDICATOR

  1.  Turn the ignition switch to the ON position.
  2.  Check that the CRUISE main indicator light and READY indicator light come on when the cruise control main switch is turned on, and that the indicator lights go off when the main switch is turned off.

HINT:

CHECK INDICATOR

Terminals of ECU
1. CHECK DISTANCE CONTROL ECU Reference: waveform 1 HINT:  Terminal: LRDD - SGND  Gauge set: 2 V/DIV., 10 ms./DIV.  Condition: ignition switch in the ON posit ...

DTC check / clear
1. CHECK DTC  Connect the intelligent tester to the DLC3.  Connect the intelligent tester to the Controller Area Network Vehicle Interface Module (CAN VIM). Then connect th ...

Other materials:

Inspection
1. INSPECT FUEL INJECTOR ASSEMBLYV (A) inspect the injector resistance. (1) Using an ohmmeter, measure the resistance between the terminals. Standard resistance If the resistance is not as specified, replace the injector. (b) Inspect the injection volume. CAUTION: This test ...

Trip information
Type A Press the “CAR” button. Type B Press the “APPS” button, and then select “Eco” on the screen. If the “Past Record” screen is displayed, select “Trip Information”. Reset the trip information data Previous fuel consumption per minute Current fuel ...

ABS Warning Light does not Come ON
WIRING DIAGRAM Refer to ABS Warning Light Remains ON (See page BC-141). INSPECTION PROCEDURE 1 CHECK ABS WARNING LIGHT (a) Disconnect the skid control ECU connector. (b) Turn the ignition switch to the ON position. (c) Check that the ABS warning light comes on. OK: ABS warning light come ...

© 2011-2019 Copyright www.tsienna.net