RM3660EC _58 Vehicle Interior _080733 HEATING / AIR CONDITIONING _0598792 AIR CONDITIONING SYSTEM(for HV Model (8ZR-FXE)) J

HEATING / AIR CONDITIONING  AIR CONDITIONING SYSTEM(for HV Model (8ZR-FXE))  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

E485155E12
0.688,2.833 2.906,3.146 2.219,0.313 10 false Air Conditioning Control Assembly 4.844,3.042 6.396,3.427 1.552,0.385 10 false Air Conditioning Amplifier Assembly 0.688,3.396 2.344,3.604 1.656,0.208 10 false : LIN Communication Line 5.125,1.146 5.583,1.344 0.458,0.198 10 false GND 4.781,0.948 5.052,1.135 0.271,0.188 10 false 1 4.698,1.156 5.135,1.354 0.438,0.198 10 false I206 4.698,0.729 5.135,0.927 0.438,0.198 10 false I206 4.688,0.313 5.125,0.51 0.438,0.198 10 false I206 4.781,0.115 5.052,0.302 0.271,0.188 10 false 3 4.781,0.542 5.052,0.729 0.271,0.188 10 false 4 5.125,0.313 5.583,0.51 0.458,0.198 10 false B 5.135,0.719 5.594,0.917 0.458,0.198 10 false IG+ 3.25,0.458 4.292,0.698 1.042,0.24 10 false ECU-B NO. 2 3.188,0.885 4.323,1.115 1.135,0.229 10 false ECU-IGP NO. 3 1.26,0.729 2.708,0.958 1.448,0.229 10 false from IGP-MAIN Relay 0.99,0.313 2.781,0.563 1.792,0.25 10 false from INP STD NO. 3 Fuse

CAUTION / NOTICE / HINT

NOTICE:

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


PROCEDURE

1.CHECK FOR DTC
a.

Clear the DTC.

Body Electrical > Air Conditioner > Clear DTCs
50002 450

b.

Check for DTCs.

Body Electrical > Air Conditioner > Trouble Codes
50001 450

Result:
Result Proceed to
B14B287 is not output A
B14B287 is output B



A

2.CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - AUXILIARY BATTERY)

B

GO TO DTC B14B287

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING SYSTEM (for HV Model (8ZR-FXE))>B14B287


2.CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - AUXILIARY BATTERY)
a.
E515377C01
1.49,0.115 1.917,0.344 0.427,0.229 1.833,1.063 2.469,0.521 true 2.031,1.115 2.469,0.844 true 0.125,0.135 0.438,0.292 0.313,0.156 10 false *a 1.583,0.146 2.198,0.344 0.615,0.198 10 false I206 2.521,0.427 2.677,0.625 0.156,0.198 10 false B 2.531,0.771 2.833,1.01 0.302,0.24 10 false IG+
*a Front view of wire harness connector
(to Air Conditioning Amplifier Assembly)


Disconnect the I206 air conditioning amplifier assembly connector.


b.

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

Standard Voltage:
Tester Connection Condition Specified Condition
I206-3 (B) - Body ground Ignition switch off 11 to 14 V
I206-4 (IG+) - Body ground Ignition switch ON 11 to 14 V
Ignition switch off Below 1 V



Result:
Proceed to
OK
NG



OK

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

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

3.CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - BODY GROUND)
a.
E515377C02
1.49,0.115 1.917,0.344 0.427,0.229 1.396,1.125 0.854,0.99 true 0.125,0.135 0.438,0.292 0.313,0.156 10 false *a 1.583,0.146 2.198,0.344 0.615,0.198 10 false I206 0.521,0.885 0.927,1.125 0.406,0.24 10 false GND
*a Front view of wire harness connector
(to Air Conditioning Amplifier Assembly)


Disconnect the I206 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
I206-1 (GND) - Body ground Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING AMPLIFIER>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR