Last Modified: 11-20-2023 |
6.11:8.1.0 |
Doc ID: RM100000001R419 |
Model Year Start: 2021 |
Model: Camry HV |
Prod Date Range: [10/2020 -
] |
Title: HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM: Operation not Accepted Even If Air Conditioning Switch is Operated; 2021 - 2024 MY Camry HV [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 assembly, the following factors may be the cause.
Symptom
|
Factor
|
Air conditioning system cannot be operated using air conditioning control assembly
-
(With the exception of the switch indicators, no inputs are reflected when other switches operated)
|
-
LIN communication malfunction between air conditioning amplifier assembly and air conditioning control assembly
-
Short to +B or ground in air conditioning amplifier assembly circuit
-
Air conditioning amplifier assembly malfunction
-
Air conditioning control assembly malfunction
-
Harness or connector
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following procedure.
PROCEDURE
(a) Check for DTCs.
Body Electrical > Air Conditioner > Trouble Codes
OK:
DTC B14B2 is not output.
OK
|
|
|
2.
|
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
|
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
|