Toyota Sienna Service Manual: System diagram

Definition of terms

Terms Definitions Monitor Description Description of what ECM monitors and how to detect malfunctions (monitoring purpose and details). Related DTCs A gro ...

How to proceed with troubleshooting

HINT: The intelligent tester can be used in steps 2, 3, 4, 6 and 9. 1 VEHICLE BROUGHT TO WORKSHOP 2 CONNECT INTELLIGENT TESTER TO DLC3 HINT: If the display indicates a communication fault in th ...

Other materials:

If you think something is wrong
If you notice any of the following symptoms, your vehicle probably needs adjustment or repair. Contact your Toyota dealer as soon as possible. Visible symptoms Fluid leaks under the vehicle (Water dripping from the air conditioning after use is normal.) Flat-looking tires or uneven tire w ...

Diagnostic trouble code chart
If a trouble code is displayed during the DTC check, check the circuit listed for that code. For details of each code, turn the page mentioned below the "DTC No" in the DTC chart. the "DTC No" in the DTC chart. 1. TRANSPONDER KEY ECU DIAGNOSTIC TROUBLE CODE CHART TRANSPON ...

Repair
1. INSTALL HEADLIGHT PROTECTOR RETAINER UPPER HINT:  If the installation area of the headlight assembly is damaged, use the supply bracket for low-cost repair. Ensure that the headlight assembly is not damaged.  Cut off the part shaded in the illustration and sand smoo ...