RM36D0EC _58 Vehicle Interior _083104 HEATING / AIR CONDITIONING _0402828 AIR CONDITIONING SYSTEM(for Gasoline Model) C

HEATING / AIR CONDITIONING  AIR CONDITIONING SYSTEM(for Gasoline Model)  P053511  Evaporator Temperature Sensor Circuit Short to Ground  


DESCRIPTION

The No. 1 cooler thermistor is installed to the evaporator in the air conditioner unit to detect the temperature of the cooled air that has passed through the evaporator, which is used to control the air conditioning system. It sends signals to the air conditioning amplifier assembly. The resistance of the No. 1 cooler thermistor changes in accordance with the temperature of the cooled air that has passed through the evaporator. As the temperature decreases, the resistance increases. As the temperature increases, the resistance decreases.

The air conditioning amplifier assembly applies voltage to the No. 1 cooler thermistor and reads voltage changes as the resistance of the No. 1 cooler thermistor changes.

DTC No. Detection Item DTC Detection Condition Trouble Area Memory
P053511 Evaporator Temperature Sensor Circuit Short to Ground
Diagnosis Condition:

Ignition switch ON


Malfunction Status:

Open or short in evaporator temperature sensor circuit


Detection Time:

Continuously for 4 seconds or more


·

No. 1 cooler thermistor

·

Air conditioning harness assembly

·

Air conditioning amplifier assembly


Memorized

WIRING DIAGRAM

E332458E88
1.719,0.708 2,0.948 0.281,0.24 10 false 2 1.719,1.167 2,1.406 0.281,0.24 10 false 1 0.354,1.938 1.99,2.365 1.635,0.427 10 false No. 1 Cooler Thermistor 2.24,1.802 4.74,2.365 2.5,0.563 10 false Air Conditioning Harness Assembly 4.792,1.781 5.167,2.021 0.375,0.24 10 false z11 4.771,1.927 7.083,2.24 2.313,0.313 10 false Air Conditioning Amplifier Assembly 4.833,0.688 5.115,0.927 0.281,0.24 10 false 6 4.833,1.177 5.115,1.417 0.281,0.24 10 false 5 5,0.688 5.958,0.938 0.958,0.25 10 false TEA 5,1.177 5.688,1.396 0.688,0.219 10 false SGA 5.885,0.292 6.167,0.531 0.281,0.24 10 false 5 V 6.49,0.813 6.771,1.052 0.281,0.24 10 false AD 0.365,1.781 0.74,2.021 0.375,0.24 10 false C

PROCEDURE

1.READ VALUE USING GTS (CHECK FOR SHORT IN WIRE HARNESS)

Pre-procedure1

a.
A226261C73
0.917,1.771 1.281,2 0.365,0.229 10 false *1 2.667,1.771 3.031,2 0.365,0.229 10 false *2 1.99,0.688 2.448,0.958 0.458,0.271 10 false TEA 1.979,1.031 2.5,1.271 0.521,0.24 10 false SGA
*1 No. 1 Cooler Thermistor
*2 Air Conditioning Amplifier Assembly


Disconnect the No. 1 cooler thermistor connector.


Procedure1

b.

According to the display on the GTS, read the Data List.

Body Electrical > Air Conditioner > Data List
Tester Display
Evaporator Fin Thermistor
50003 450 105
OK:
GTS Display Specified Condition
Evaporator Fin Thermistor -327.68°C (-557.82°F)



Result:
Proceed to
OK
NG


Post-procedure1

c.

None



OK

REPLACE NO. 1 COOLER THERMISTOR

Click hereVehicle Interior>HEATING / AIR CONDITIONING>FRONT EVAPORATOR TEMPERATURE SENSOR>REMOVAL


NG

2.INSPECT AIR CONDITIONING HARNESS ASSEMBLY
2.INSPECT AIR CONDITIONING HARNESS ASSEMBLY

Pre-procedure1

a.

Remove the air conditioning harness assembly.

HINT:

for M20C-FKS:Vehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING UNIT (for M20C-FKS)>DISASSEMBLY

for M20D-FKS:Vehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING UNIT (for M20D-FKS)>DISASSEMBLY



E378688C41
0.917,0.833 1.333,1.083 0.417,0.25 4.125,0.885 4.542,1.135 0.417,0.25 1.333,1.583 1.667,1.583 1.667,1.583 1.781,1.26 true 2.323,1.583 1.99,1.583 1.99,1.583 1.927,1.25 true 1.167,0.229 1.479,0.427 0.313,0.198 10 false *a 4.469,0.302 4.781,0.5 0.313,0.198 10 false *b 1,0.875 1.313,1.073 0.313,0.198 10 false z11 0.99,1.5 1.479,1.719 0.49,0.219 10 false SGA 2.396,1.479 2.885,1.698 0.49,0.219 10 false TEA 4.292,0.948 4.604,1.146 0.313,0.198 10 false C
*a Front view of air conditioning harness assembly connector
(to Air Conditioning Amplifier Assembly) 		*b Front view of air conditioning harness assembly connector
(to No. 1 Cooler Thermistor)



Procedure1

b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
C-2 or z11-6 (TEA) - Other terminals and body ground Always 10 kΩ or higher
C-1 or z11-5 (SGA) - Other terminals and body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG


Post-procedure1

c.

None



OK

REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY

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


NG

REPLACE AIR CONDITIONING HARNESS ASSEMBLY

for M20C-FKS:Vehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING UNIT (for M20C-FKS)>DISASSEMBLY

for M20D-FKS:Vehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING UNIT (for M20D-FKS)>DISASSEMBLY