Toyota RAV4 manuals

Toyota Sienna Service Manual: How to proceed with troubleshooting


1 Vehicle brought to workshop

2 Customer problem analysis

3 Connect the obd ii scan tool or intelligent tester to dlc3

4 Check and clear dtcs and freeze frame data

Hint: (see page ax-27).

5 Visual inspection

6 Setting the Check Mode Diagnosis

HINT: (See page AX-28).

7 Problem Symptom Confirmation

HINT: (See page AX-9).

8 Symptom Simulation

HINT: (See page IN-35).

9 DTC Check

HINT: (See page AX-27).

10 Basic Inspection

HINT: (See page AX-127, AX-123 and AX-148).

11 Mechanical System Test

HINT: (See page AX-12).

12 Hydraulic Test

HINT: (See page AX-14).

13 Manual Shifting Test

HINT: (See page AX-15).

14 Problem Symptoms Table Chapter 1

HINT: (See page AX-19).

15 Problem Symptoms Table Chapter 2

HINT: (See page AX-19).

16 Part Inspection

17 DTC Chart

HINT: (See page AX-35).

18 Circuit Inspection

19 Repair or Replace

20 Confirmation Test


System description
1. SYSTEM DESCRIPTION (a) The ECT (Electronic controlled automatic transmission/transaxle) is an automatic transmission/transaxle that electronically controls shift timing using the ECM. The ECM d ...

Road test
1. PROBLEM SYMPTOM CONFIRMATION (a) Based on the result of the customer problem analysis, try to reproduce the symptoms. If the problem is that the transaxle does not shift up, shift down, or the ...

Other materials:

Concept Under certain conditions the engine is automatically decoupled from the transmission in the D selector lever position. The vehicle continues traveling with the engine idling to reduce consumption. Selector lever position D remains engaged. This driving condition is referred to as coasting. ...

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 (125 mph).  Push the cruise control main switch to - (COAST)/SET.  After releasing t ...

Light Sensor Circuit Malfunction
DTC B1244 Light Sensor Circuit Malfunction DESCRIPTION This DTC is output when failure in the light sensor circuit is detected. DTC No. DTC Detection Condition Trouble Area B1244 Malfunction of automatic light control sensor Open or short of a ...

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