Toyota RAV4 manuals

Toyota Sienna Service Manual: How to proceed with troubleshooting

Toyota Sienna Service Manual / Cruise control / Cruise control system / How to proceed with troubleshooting

HINT:

1 VEHICLE BROUGHT TO WORKSHOP

2 PROBLEM SYMPTOM CONFIRMATION

3 CHECK MULTIPLEX COMMUNICATION SYSTEM*

Refer to HOW TO PROCEED WITH TROUBLESHOOTING.

  1.  Check for output DTCs.

Result

Result

HINT: The ECM of this system is connected to the multiplex communication system. Therefore, before starting troubleshooting, make sure to check that there is no trouble in the multiplex communication system.

4 CHECK CAN COMMUNICATION SYSTEM*

Refer to PRECAUTION.

  1.  Check for output DTCs.

Result

Result

HINT: The ECM of this system is connected to the CAN communication system. Therefore, before starting troubleshooting, make sure to check that there is no trouble in the CAN communication system.

5 DTC CHECK AND CLEAR*

Refer to DTC CHECK / CLEAR

6 DTC CHECK (OTHER THAN MPX AND CAN SYSTEM DTC)*

Result

Result

7 DTC CHART

Refer to DIAGNOSTIC TROUBLE CODE CHART

8 PROBLEM SYMPTOM CONFIRMATION

Result

Result

9 SYMPTOM SIMULATION

Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE

10 PROBLEM SYMPTOMS TABLE

Refer to PROBLEM SYMPTOMS TABLE

11 CIRCUIT INSPECTION

12 TERMINALS OF ECM

Refer to TERMINALS OF ECM

13 IDENTIFICATION OF PROBLEM

14 REPAIR OR REPLACE

15 CONFIRMATION TEST

END

System description
1. CRUISE CONTROL SYSTEM This system is controlled by the ECM, and is activated by the throttle position sensor and motor. The ECM controls the following functions: ON-OFF, - (COAST)/SET, + (ACCEL ...

Road test
1. PROBLEM SYMPTOM CONFIRMATION  Inspect the SET function.  Turn the cruise control main switch on.  Drive at the required speed between 40 km/h (25 mph) and 200 km/h ...

Other materials:

Catalyst System Efficiency Below Threshold
MONITOR DESCRIPTION The ECM uses the sensors mounted in front of and behind the three-way catalyst (TWC) to monitor its efficiency. The first sensor, an Air Fuel ratio (A/F) sensor, sends pre-catalyst A/F ratio information to the ECM. The second sensor, a heated oxygen sensor (O2S), sends ...

Passenger Airbag ON/OFF Indicator Circuit Malfunction
DTC B1152/28 Passenger Airbag ON/OFF Indicator Circuit Malfunction DESCRIPTION The passenger airbag ON/OFF indicator circuit consists of the center airbag sensor assembly and passenger airbag ON/OFF indicator. This circuit indicates the operation condition of the front passenger airbag, t ...

Disposal
HINT:  Use the same procedures for the RH side and LH side.  The procedures listed below are for the LH side.  When scrapping a vehicle equipped with the SRS or disposing of the front seat side airbag assembly, be sure to deploy the airbag first in accordance with the proc ...

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