NOTE As the temperature increases the voltage decreases

OK: Proceed to next circuit inspection shown on problem symptoms table (See PROBLEM SYMPTOMS TABLE ). However, if DTC19 is displayed, check and replace integration control and panel.

2. Check rear room temperature sensor. PREPARATION:

2004 ACCESSORIES & EQUIPMENT Air Conditioning System - Diagnostics - Sequoia

Disconnect rear room temperature sensor connector.

CHECK:

Measure resistance between terminals 1 and 2 of room temperature sensor connector at each temperature.

Fig. 46: Measuring Resistance Between Terminals Of Room Temperature Sensor Connector Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Resistance:

at 25°C (77°F): 1.65 - 1.75 kohm at 50°C (122°F): 0.55 - 0.65 kohm.

2004 ACCESSORIES & EQUIPMENT Air Conditioning System - Diagnostics - Sequoia

NOTE:

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