HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM (for HV Model): A/C Switch Indicator does not Turn On; 2019 MY RAV4 HV [11/2018

Last Modified: 01-30-2024	6.11:8.1.0	Doc ID: RM100000001FPHN
Model Year Start: 2019	Model: RAV4 HV	Prod Date Range: [11/2018 - 02/2019]
Title: HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM (for HV Model): A/C Switch Indicator does not Turn On; 2019 MY RAV4 HV [11/2018 - 02/2019]

A/C Switch Indicator does not Turn On

DESCRIPTION

If none of the indicators on the air conditioning control assembly illuminate, the following malfunctions are possible.

Malfunction Status	Factor
None of the indicators on the air conditioning control assembly illuminate	Air conditioning amplifier assembly malfunction A/C switch (air conditioning control assembly) malfunction Malfunction in one of the servo motors (initialization incomplete) Damper and link operation (jamming) Refrigerant pressure malfunction (low pressure) Low ambient temperature (including thermistor assembly)

1.	CHECK MALFUNCTION STATUS

(a) Check the malfunction status of switch indicators on the air conditioning control assembly.

Result	Proceed to
A/C switch indicators are not always illuminated	A
A/C switch indicators are not illuminated only immediately after starting the hybrid control system	B

2.	READ VALUE USING TECHSTREAM (AMBIENT TEMP SENSOR)

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(d) Enter the following menus: Body Electrical / Air Conditioner / Data List.

(e) Read the Data List according to the display on the Techstream.

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Ambient Temp Sensor

Thermistor assembly

Min.: -23.30°C (-9.94°F)

Max.: 65.95°C (150.71°F)

Actual ambient temperature displayed

Thermistor assembly system malfunction

Tester Display
Ambient Temp Sensor

OK:

The display is as specified in the normal condition column (0°C (32°F) or higher).