Last Modified: 05-08-2025 6.11:8.1.0 Doc ID: RM100000001FPHR
Model Year Start: 2019 Model: RAV4 HV Prod Date Range: [11/2018 - 02/2019]
Title: HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM (for HV Model): Operation not Accepted Even If Air Conditioning Switch is Operated; 2019 MY RAV4 HV [11/2018 - 02/2019]

Operation not Accepted Even If Air Conditioning Switch is Operated

DESCRIPTION

If the air conditioning system does not operate even when the air conditioning control assembly is operated, the following causes are possible.

Malfunction Status

Factor

Operations are never accepted by the integration control and panel assembly

  • (With the exception of the switch indicator, everything is turned off)
  • LIN communication malfunction between air conditioning amplifier assembly and air conditioning control assembly
  • Air conditioning amplifier assembly malfunction (+B or GND circuit)
  • Air conditioning control assembly malfunction

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

  • Inspect the fuses for circuits related to this system before performing the following procedure.
  • If DTC B14B7 is output at the same time, troubleshoot for DTC B14B7 first.

PROCEDURE

1.

CHECK FOR DTC

(a) Check for DTCs.

Click here 2019 MY RAV4 HV [11/2018 - 02/2019]; HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM (for HV Model): DTC CHECK / CLEAR

Body Electrical > Air Conditioner > Trouble Codes

OK:

DTC B14B2 is not output.

NG

GO TO DTC B14B2

OK

2.

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

(a) Disconnect the air conditioning amplifier assembly connector.

*a

Front view of wire harness connector

(to Air Conditioning Amplifier Assembly)

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

G46-17 (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

G46-5 (B) - Body ground

Power switch off

11 to 14 V

G46-6 (IG+) - Body ground

Power switch on (IG)

11 to 14 V

Power switch off

Below 1 V
OK

REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR