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:

On-vehicle inspection
1. INSPECT CENTER AIRBAG SENSOR ASSEMBLY (VEHICLE NOT INVOLVED IN COLLISION)  Perform a diagnosis system check. 2. INSPECT CENTER AIRBAG SENSOR ASSEMBLY (VEHICLE INVOLVED IN COLLISION AND AIRBAG HAS NOT DEPLOYED)  Perform a diagnosis system check. 3. INSPECT CENTER AIRBAG ...

Key Lock-in Prevention Function does not Work Properly (Manual Operation and Operation Interlocked with Key are Active)
DESCRIPTION The un-lock warning switch turns ON when the key is inserted in the ignition key cylinder. The courtesy light switch turns ON when the driver side door is opened. These 2 switches are monitored by the body ECU. In order to prevent the key from being locked in, the body ECU cont ...

Short to B+ in Curtain Shield Squib LH Circuit
DTC B1168/86 Short to B+ in Curtain Shield Squib LH Circuit DESCRIPTION The curtain shield squib LH circuit consists of the center airbag sensor assembly and the curtain shield airbag assembly LH. The circuit instructs the SRS to deploy when deployment conditions are met. DTC B1168/86 is ...

В© 2011-2019 Copyright www.tsienna.net