Toyota Sienna Service Manual: Air conditioning control assembly

Heater relay (for rear air conditioning system)

ON-VEHICLE INSPECTION 1. INSPECT REAR HEATER RELAY (a) Remove the rear heater relay. (b) Measure the resistance according to the value(s) in the table below. Standard resistance If the re ...

Removal

1. REMOVE AIR CONDITIONING NO.2 CONTROL ASSEMBLY (a) Release the 4 claw fittings and release the air conditioning No. 2 control assembly. (b) Disconnect the connectors and remove the air con ...

Other materials:

Reassembly
1. INSTALL IGNITION OR STARTER SWITCH ASSEMBLY (a) Install the ignition or starter switch assembly to the steering column bracket assembly UPR with the 2 screws. 2. INSTALL KEY INTER LOCK SOLENOID (a) Install the solenoid to the steering column bracket assembly with the 2 screws. 3. INSTALL ...

Reverse Signal Circuit
DESCRIPTION The radio and navigation assembly receives a reverse signal from the park/neutral position switch and information about the GPS antenna, and then adjusts vehicle position. WIRING DIAGRAM INSPECTION PROCEDURE 1 INSPECT RADIO AND NAVIGATION ASSEMBLY Disconnect the radio ...

Initialization not Completed
DTC C2177/77 Initialization not Completed DESCRIPTION Initialization is necessary after replacing any of the ECUs, tires with different tire pressure, or tire pressure warning valve and transmitter, after rotating the tires or when a new vehicle is delivered. WIRING DIAGRAM INSPECTI ...