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:

Precaution
1. PRECAUTION (a) Before inspecting and repairing the fuel system, disconnect the cable from the negative (-) battery terminal. (b) Do not smoke or work near fire when handling the fuel system. (c) Keep gasoline away from rubber or leather parts. 2. DISCHARGE FUEL SYSTEM PRESSURE (*1) ...

Disassembly
1. Remove rear wheel 2. Drain brake fluid Notice: wash the brake fluid off immediately if it attaches to any painted surface. 3. REMOVE REAR BRAKE DRUM SUB-ASSEMBLY (a) Release the parking brake lever, and remove the rear brake drum. HINT: If the rear brake drum cannot be removed easily, p ...

Dtc check / clear
Notice:All the stored dtcs and freeze frame data are erased if: 1) the ecm is changed from normal mode to check mode or vice versa; or 2) the ignition switch is turned from on to acc or off while in check mode. Before changing modes, always check and make a note of any dt ...