Toyota Camry owners & service manuals

Toyota Camry (XV70): Indicator does not Illuminate

Toyota Camry Repair Manual XV70 (2018-2024) / Vehicle Interior / Heating / Air Conditioning / Air Conditioning System (for Automatic Air Conditioning System) / Indicator does not Illuminate

DESCRIPTION

If none of the switch indicators on the air conditioning control assembly illuminate, the following suspected areas may be the cause.

Symptom

Factor

None of the switch indicators on the air conditioning control assembly illuminate
  • Air conditioning amplifier assembly malfunction
  • Air conditioning control assembly malfunction
  • A/C switch malfunction
  • A/C switch indicator malfunction (including when indicator turned off without switch operation)
  • Servo motor initialization (incomplete)
  • Mechanical locking of damper and damper link
  • Refrigerant pressure is extremely low
  • Low detected ambient temperature (including thermistor assembly malfunction)

PROCEDURE

1.

CHECK AIR CONDITIONING CONTROL ASSEMBLY

(a) Check that the switch indicators on the air conditioning control assembly illuminate immediately after the engine is started.

OK:

All switch indicators illuminate.

NG

REPLACE AIR CONDITIONING CONTROL ASSEMBLY

OK

2.

READ VALUE USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

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

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

Body Electrical > Air Conditioner > Data List

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

-
Body Electrical > Air Conditioner > Data List

Tester Display

Ambient Temp Sensor

OK:

The value displayed is 0°C (32°F) or higher.

OK

INSPECT REFRIGERANT PRESSURE WITH MANIFOLD GAUGE SET

NG

GO TO OTHER DIAGNOSIS PROCEDURE (Ambient Temperature Display System)

    READ NEXT:

     Cooling System

    DESCRIPTION If the cooling effect of the air conditioning system is weak, the following suspected areas may be the cause. Symptom Factor Cooling effectiveness is poor Cooling res

     Operation not Accepted Even If Air Conditioning Switch is Operated

    DESCRIPTION If the air conditioning system cannot be operated using the air conditioning control assembly, the following suspected areas may be the cause. Symptom Factor Air conditioning

     Front Window Fogging

    DESCRIPTION If the windshield frequently fogs up even though the air conditioning system is operating, the following suspected areas may be the cause. Symptom Factor Windshield frequentl

    SEE MORE:

     Remote Control System does not Operate

    DESCRIPTION The main body ECU (multiplex network body ECU) receives remote control signals from the driver door key cylinder or wireless transmitter. Then, the main body ECU (multiplex network body ECU) activates the power window motor and sends the remote control signals to the sliding roof ECU (sl

     Disassembly

    DISASSEMBLY PROCEDURE 1. REMOVE MANUAL VALVE (a) Remove the manual valve from the transmission valve body assembly. 2. REMOVE SOLENOID LOCK PLATE (a) Remove the 3 bolts and solenoid lock plate from the transmission valve body assembly. 3. REMOVE

    © 2023-2026 Copyright www.tocamry.com