Toyota Sienna Service Manual: Ignition system

Engine

Ignition coil and spark plug

Other materials:

Pressure Control Solenoid "B" Performance (Shift Solenoid Valve SL2)
SYSTEM DESCRIPTION The ECM uses signals from the vehicle speed sensor to detect the actual gear position (1st, 2nd, 3rd, 4th or 5th gear). Then the ECM compares the actual gear with the shift schedule in the ECM memory to detect mechanical problems of the shift solenoid valves, valve b ...

Inspection
1. INSPECT SEAT HEATER SWITCH LH  Measure the resistance of the seat heater switch when the switch is operated. Resistance If the result is not as specified, replace the switch. HINT: As the dial is being turned, the resistance changes gradually.  Push the seat h ...

For vehicles equipped with traction control (trac) system
When using a 2-wheel drum tester such as a speedometer tester or chassis dynamometer, etc., or jacking up the front wheels and driving the wheels, always push in the TRAC cut ("TRAC OFF") switch and turn the TRAC system OFF. FOR VEHICLES EQUIPPED WITH TRACTION CONTROL (TRAC) SYS ...