Toyota Tundra Service Manual: System Description

SYSTEM DESCRIPTION

1. GENERAL

(a) By operating the seat heater switch, which is located in the air conditioning control assembly, the temperature is controlled to 3 settings.

  • LOWEST: 32.5°C (90.5°F)
  • MID: 44.5°C (112.1°F)
  • HIGH: 58.25°C (136.85°F)

(b) Whether the seat heater is on or off can be determined by checking if the indication is located in air conditioning control assembly.

(c) The seat heaters of both seats are controlled by the seat heater switches, which are located on the air conditioning control assembly.

    Problem Symptoms Table

    System Diagram

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    DESCRIPTION HINT: These DTCs indicate malfunctions relating to the primary circuit. If DTC P0351 is stored, check the No. 1 ignition coil circuit. If DTC P0352 is stored, check the No. 2 ignition coil circuit. If DTC P0353 is stored, check the No. 3 ignition coil circuit. If DTC P0354 is stored, che ...

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