DTC B141A-11: Room Temperature Sensor Circuit Short to Ground [12/2023 - ]: Procedure

1. Clear the DTCs.

   Body Electrical > Air Conditioner > Clear DTCs 

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  2

Pre-procedure1

• Turn the ignition switch off.
• Disconnect the room temp. sensor (cooler thermistor) connector.

  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

  *1	Room Temp. Sensor (Cooler Thermistor)
  *2	Air Conditioning Amplifier Assembly

• Turn the ignition switch to ON and wait for 4 seconds or more.

• Check for DTCs.

  Body Electrical > Air Conditioner > Trouble Codes 

  Result

  Result	Proceed to
  B141A-15 is output	A
  B141A-11 is output	B

Post-procedure1

• None

Result: 

A 

REPLACE ROOM TEMP. SENSOR (COOLER THERMISTOR). Refer to  REMOVAL [09/2023 - ] 

Result: 

B 

See step  3

Pre-procedure1

• Disconnect the D41 room temp. sensor (cooler thermistor) connector.
• Disconnect the D35 air conditioning amplifier assembly connector.

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

  Standard Resistance

  Tester Connection	Condition	Specified Condition	Result
  D41-1 (+) or D35-5 (TR) - Other terminals and body ground	Always	10 kΩ or higher	kΩ
  D41-2 (-) or D35-3 (SG-1) - Other terminals and body ground	Always	10 kΩ or higher	kΩ

  Result

  Proceed to
  OK
  NG

Post-procedure1

• None

Result: 

OK 

REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to  REMOVAL [09/2023 - ] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR