RM38N0EC _58 Vehicle Interior _111841 HEATING / AIR CONDITIONING _0499788 AIR CONDITIONING SYSTEM(for Gasoline Model) C

HEATING / AIR CONDITIONING  AIR CONDITIONING SYSTEM(for Gasoline Model)  B140287  Lost Communication with Front Air Outlet Damper Control Servo Motor LIN Missing Message  


DESCRIPTION

The air conditioning harness assembly connects the air conditioning amplifier assembly and No. 1 air conditioning radiator damper servo sub-assembly.

The No. 1 air conditioning radiator damper servo sub-assembly sends damper position information to the air conditioning amplifier assembly.

DTC No. Detection Item DTC Detection Condition Trouble Area Memory DTC Output from Priority
B140287 Lost Communication with Front Air Outlet Damper Control Servo Motor LIN Missing Message Diagnosis Condition:

Ignition switch ON


Malfunction:

Error or open in communication line between air conditioning amplifier assembly and No. 1 air conditioning radiator damper servo sub-assembly


Detection Time:

Continuously for 10 seconds or more


No. 1 air conditioning radiator damper servo sub-assembly Memorized Air Conditioner B

DTC Detection Condition Combination Table
Vehicle Condition
Pattern 1 Pattern 2
Diagnosis Condition Ignition switch ON
Malfunction Error in communication line between air conditioning amplifier assembly and No. 1 air conditioning radiator damper servo sub-assembly -
Open in communication line between air conditioning amplifier assembly and No. 1 air conditioning radiator damper servo sub-assembly -
Detection Time Continuously for 10 seconds or more Continuously for 10 seconds or more
Trip Count 1 trip 1 trip

HINT:

If the conditions of either of these patterns are detected, a DTC will be stored.


WIRING DIAGRAM

E444987E01
5.51,9.271 7.063,9.656 1.552,0.385 10 false Air Conditioning Amplifier Assembly 0.74,9.417 2.927,9.646 2.188,0.229 10 false : LIN Communication Line 5.927,0.542 6.385,0.74 0.458,0.198 10 false TEA 5.917,0.75 6.375,0.948 0.458,0.198 10 false SGA 0.552,0.979 3.729,1.198 3.177,0.219 10 false Evaporator Temp. Sensor (No. 1 Cooler Thermistor) 1.021,2.531 3.927,2.781 2.906,0.25 10 false No. 1 Blower Damper Servo Sub-assembly 1.396,6.802 3.281,7.167 1.885,0.365 10 false No. 1 Air Conditioning Radiator Damper Servo Sub-assembly 3.281,4.813 3.594,5.01 0.313,0.198 10 false IC 3.271,8.01 3.583,8.208 0.313,0.198 10 false IC 5.927,5.198 6.385,5.396 0.458,0.198 10 false BUS G 5.927,4.99 6.385,5.188 0.458,0.198 10 false B BUS 1.146,3.781 2.271,4.052 1.125,0.271 10 false Front Side Mode 1.188,4.802 2.104,5.219 0.917,0.417 10 false Front Left Side Air Mix 1.156,5.885 2.177,6.281 1.021,0.396 10 false Front Right Side Air Mix 1.146,7.99 2.281,8.25 1.135,0.26 10 false Rear Side Mode 3.729,8.99 4.906,9.344 1.177,0.354 10 false Air Conditioning Harness Assembly 5.927,4.604 6.385,4.802 0.458,0.198 10 false BUS 1.396,8.771 3.281,9.135 1.885,0.365 10 false No. 2 Air Conditioning Radiator Damper Servo Sub-assembly

PROCEDURE

1.CHECK FOR DTC
a.

Check for DTCs.

Body Electrical > Air Conditioner > Trouble Codes
50001 450

Result:
Result Proceed to
B142A88 is output A
B142A88 is not output B



A

B