HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Manual Air Conditioning System): No Cool Air Comes Out; 2018 - 2020 MY Camry [06/2017

Last Modified: 11-20-2023	6.11:8.1.0	Doc ID: RM1000000015PBB
Model Year Start: 2018	Model: Camry	Prod Date Range: [06/2017 - 10/2020]
Title: HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Manual Air Conditioning System): No Cool Air Comes Out; 2018 - 2020 MY Camry [06/2017 - 10/2020]

No Cool Air Comes Out

DESCRIPTION

If warm air blows from the registers regardless of the temperature setting of the air conditioning system, the following suspected areas may be the cause.

Symptom	Factor
No cool air comes out (Blower control is normal)	Compressor assembly with pulley (compressor solenoid) malfunction Refrigerant pressure is extremely high or low Refrigerant volume (low) Clogged cooler condenser assembly fins Cooling fan system malfunction Mechanical locking of damper and damper link No. 1 cooler thermistor malfunction High inlet air temperature

PROCEDURE

1.	CHECK AIR CONDITIONING CONTROL ASSEMBLY

(a) Operate each switch on the air conditioning control panel and check that the switch indicators operate normally.

OK:

All switch indicators operate normally.

GO TO OTHER DIAGNOSIS PROCEDURE (Operation not Accepted Even If Air Conditioning Switch is Operated)

2.	PERFORM ACTIVE TEST USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(d) Enter the following menus: Body Electrical / Air Conditioner / Active Test.

(e) Perform the Active Test according to the display on the Techstream.

Body Electrical > Air Conditioner > Active Test

Tester Display

Measurement Item

Control Range

Diagnostic Note

Air Mix Servo Targ Pulse(D)

No. 1 air conditioning radiator damper servo sub-assembly (air mix) pulse

Min.: 128

Max.: 383

Operates between 165 to 257 pulses

Air Outlet Servo Pulse (D)

No. 1 air conditioning radiator damper servo sub-assembly (mode) pulse

Min.: 128

Max.: 383

Operates between 241 to 348 pulses

Air Inlet Damper Targ Pulse

No. 1 blower damper servo sub-assembly pulse

Min.: 128

Max.: 383

Operates between 220 to 256 pulses

Body Electrical > Air Conditioner > Active Test

Tester Display
Air Mix Servo Targ Pulse(D)

Body Electrical > Air Conditioner > Active Test

Tester Display
Air Outlet Servo Pulse (D)

Body Electrical > Air Conditioner > Active Test

Tester Display
Air Inlet Damper Targ Pulse

OK:

Each damper servo motor operates.

INSPECT REFRIGERANT PRESSURE WITH MANIFOLD GAUGE SET

for HFC-134a (R134a): Click here

for HFO-1234yf (R1234yf): Click here

GO TO DTC TROUBLESHOOTING PROCEDURE FOR MALFUNCTIONING DAMPER SERVO MOTOR