Last Modified: 11-20-2023 6.11:8.1.0 Doc ID: RM1000000014V2D
Model Year Start: 2018 Model: Camry HV Prod Date Range: [07/2017 - 10/2020]
Title: HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM: Operation not Accepted Even If Air Conditioning Switch is Operated; 2018 - 2020 MY Camry HV [07/2017 - 10/2020]

Operation not Accepted Even If Air Conditioning Switch is Operated

DESCRIPTION

If the air conditioning system cannot be operated using the air conditioning control panel (radio and display receiver assembly)*1 or air conditioning control assembly*2, the following factors may be the cause.

Symptom

Factor

Air conditioning system cannot be operated using air conditioning control panel (radio and display receiver assembly)*1 or air conditioning control assembly*2

  • (With the exception of the switch indicators, no inputs are reflected when other switches operated)
  • CAN communication malfunction between air conditioning amplifier assembly and air conditioning control panel (radio and display receiver assembly)*1
  • LIN communication malfunction between air conditioning amplifier assembly and air conditioning control assembly*2
  • Short to +B or ground in air conditioning amplifier assembly circuit
  • Air conditioning amplifier assembly malfunction
  • Air conditioning control panel (radio and display receiver assembly) malfunction*1
  • Air conditioning control assembly malfunction*2
  • Harness or connector
  • *1: for 8 Inch Display
  • *2: for 7 Inch Display

WIRING DIAGRAM

for 8 Inch Display

for 7 Inch Display

CAUTION / NOTICE / HINT

NOTICE:

Inspect the fuses for circuits related to this system before performing the following procedure.

PROCEDURE

1.

CONFIRM MODEL

Result

Proceed to

for 8 Inch Display

A

for 7 Inch Display

B
B

GO TO STEP 6

A

2.

CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - POWER SOURCE AND BODY GROUND)

(a) Disconnect the h1 air conditioning control panel (radio and display receiver assembly) connector.

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

h1-6 (GND) - Body ground

Always

Below 1 Ω

(c) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection

Condition

Specified Condition

h1-3 (+B) - Body ground

Power switch off

11 to 14 V

h1-10 (ACC) - Body ground

Power switch on (ACC)

11 to 14 V

h1-2 (IG+) - Body ground

Power switch on (IG)

11 to 14 V
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

3.

CHECK FOR DTC (AUDIO AND VISUAL SYSTEM)

(a) Check for DTCs.

Body Electrical > Navigation System > Trouble Codes

OK:

DTC B15F9 is not output.

NG

REPLACE AIR CONDITIONING CONTROL PANEL (RADIO AND DISPLAY RECEIVER ASSEMBLY)

OK

4.

CHECK FOR DTC (CAN COMMUNICATION SYSTEM)

(a) Using the Techstream, check for CAN communication system DTCs.

Click here 2018 - 2024 MY Camry HV [07/2017 -        ]; NETWORKING: CAN COMMUNICATION SYSTEM: DIAGNOSTIC TROUBLE CODE CHART

Result

Proceed to

CAN communication system DTCs are not output

A

CAN communication system DTCs are output

B
B

GO TO CAN COMMUNICATION SYSTEM

A

5.

PERFORM ACTIVE TEST USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

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

(c) Turn the Techstream 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

Blower Motor

Blower motor with fan sub-assembly

Min.: 0

Max.: 31

-

Body Electrical > Air Conditioner > Active Test

Tester Display

Blower Motor

OK:

Blower motor with fan sub-assembly operates normally.

OK

REPLACE AIR CONDITIONING CONTROL PANEL (RADIO AND DISPLAY RECEIVER ASSEMBLY)

NG

REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY 2018 - 2019 MY Camry HV [07/2017 - 09/2019]; HEATING / AIR CONDITIONING: AIR CONDITIONING AMPLIFIER: REMOVAL 2020 - 2024 MY Camry HV [09/2019 -        ]; HEATING / AIR CONDITIONING: AIR CONDITIONING AMPLIFIER: REMOVAL

6.

CHECK FOR DTC

(a) Check for DTCs.

Body Electrical > Air Conditioner > Trouble Codes

OK:

DTC B14B2 is not output.

NG

GO TO DTC B14B2

OK

7.

CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - POWER SOURCE AND BODY GROUND)

*a

Front view of wire harness connector

(to Air Conditioning Amplifier Assembly)

(a) Disconnect the K54 air conditioning amplifier assembly connector.

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

K54-4 (GND) - Body ground

Always

Below 1 Ω

(c) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection

Switch Condition

Specified Condition

K54-1 (B) - Body ground

Always

11 to 14 V

K54-2 (IG+) - Body ground

Power switch on (IG)

11 to 14 V

Power switch off

Below 1 V
OK

REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY 2018 - 2019 MY Camry HV [07/2017 - 09/2019]; HEATING / AIR CONDITIONING: AIR CONDITIONING AMPLIFIER: REMOVAL 2020 - 2024 MY Camry HV [09/2019 -        ]; HEATING / AIR CONDITIONING: AIR CONDITIONING AMPLIFIER: REMOVAL

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR