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Home >> Toyota >> 2004 >> Highlander Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 903 (Heater & Air Conditioning Control System) >> Basic Inspection >> Inspection And Adjustment >> Operational Check (Rear) >> Checking Rear Temperature Increase

Checking Rear Temperature Increase

WARNING: This page is about a different car, the 2013 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.
  1. Press the REAR CTRL switch (indicator off).
  2. Rotate the rear air control (front) temperature control dial clockwise to maximum heat.
  3. Check for hot air at appropriate discharge air outlets.
  4. Press the REAR CTRL switch (indictor on) from the rear air control (front).
  5. Rotate the rear air control (rear) temperature control dial clockwise to maximum heat.
  6. Check for hot air at appropriate discharge air outlets.

If NG, listen for sound of air mix door motor operation. If OK, go to trouble diagnosis procedure for "AIR MIX DOOR MOTOR (DRIVER) COMPONENT FUNCTION CHECK ". If air mix door motor appears to be malfunctioning, go to "AIR MIX DOOR MOTOR (REAR) DIAGNOSIS PROCEDURE ".

If NG, go to trouble diagnosis procedure for "COMPONENT FUNCTION CHECK ".

If all operational checks are OK (symptom cannot be duplicated), go to "HOW TO PERFORM TROUBLE DIAGNOSIS FOR QUICK AND ACCURATE REPAIR " and perform tests as outlined. If symptom appears, refer to "SYMPTOM MATRIX CHART " and perform applicable trouble diagnosis procedures.