Toyota Sienna Service Manual: Problem symptoms table

Toyota Sienna Service Manual / Seat / Seat heater system / Problem symptoms table

HINT: Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

SEAT HEATER SYSTEM

Symptom	Suspected area
Seat heaters do not operate (Seat does not warmed up)	S-HTR fuse ECU-IG fuse IG1 relay Front seat cushion heater assembly Front seat cushion heater assembly Front seatback heater assembly Front seatback heater assembly Seat heater switch Seat heater switch Seat heater control Wire harness
Temperature of seat heater cannot be adjusted	Seat heater switch Seat heater switch Seat heater control Wire harness

Seat heater system

PARTS LOCATION ...

On-vehicle inspection

1. CHECK SEAT HEATER CONTROL (WIRE HARNESS SIDE) Disconnect the connector from the seat heater control. Measure the voltage and resistance of each terminal of the wire harne ...

Other materials:

Camshaft Position "B" Actuator Circuit / Open
DTC P0013 Camshaft Position "B" Actuator Circuit / Open (Bank 1) DTC P0023 Camshaft Position "B" Actuator Circuit / Open (Bank 2) DESCRIPTION The Variable Valve Timing (VVT) system includes the ECM, OCV and VVT controller. The ECM sends a target duty-cycle control signal ...

Installation
1. INSTALL REAR DRIVE SHAFT ASSEMBLY LH (a) Install the drive shaft to the axle carrier. NOTICE: Be careful not to damage the boot and ABS speed sensor rotor to the drive shaft and oil seal of the axle hub bearing. (b) Align the matchmarks and connect the drive shaft to the side gear shaf ...

Radio antenna pole
COMPONENTS REMOVAL 1. REMOVE PULL TOP ANTENNA POLE SUBASSEMBLY Remove the pull top antenna pole sub-assembly by pulling it the arrow direction in the illustration. INSTALLATION 1. INSTALL PULL TOP ANTENNA POLE SUBASSEMBLY ...