Toyota Sienna Quiz
Air conditioning

Heater relay (for rear air conditioning system)

In this manual: Air conditioning
Introduction — 55Service specifications — 7Maintenance — 7Engine — 264U151e automatic transaxle — 108Transfer — 19Propeller shaft — 8Drive shaft — 14Differential — 16Axle — 18Suspension — 37Tire and wheel — 54Brake control — 141Parking brake — 16Steering Column — 11Power steering — 18Air conditioning — 106Supplemental restraint system — 146Seat belt — 22Theft deterrent — 14Engine immobiliser — 17Cruise control — 65Lighting — 61Wiper and washer — 13Door lock — 42Meter — 28Audio / visual — 94Navigation — 108Park assist / monitoring — 33Horn — 5Garage door opener — 42GR-FE Engine control system — 126Supplemental restraint system — 147Other system — 14Windshield / windowglass — 43Mirror — 23Instrument panel — 6Seat belt — 22Seat — 92Engine hood / door — 104Exterior — 39Interior — 5Sliding roof — 9Multiplex communication — 18Can communication — 23
~1min read

ON-VEHICLE INSPECTION

1. INSPECT REAR HEATER RELAY

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 resistance is not as specified, replace the rear heater relay.

Test yourself

A quick Toyota Sienna quiz: every answer comes with an explanation and a link to the manual page.