DTC B141A-11: Room Temperature Sensor Circuit Short to Ground [11/2021 - ]: Procedure
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- READ VALUE USING GTS (ROOM TEMPERATURE SENSOR)
- Read the Data List according to the display on the GTS.
Body Electrical > Air Conditioner > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note Room Temperature Sensor Room temp. sensor (cooler thermistor) -327.68 to 327.67°C Actual cabin temperature displayed Room temp. sensor (cooler thermistor) circuit malfunction Body Electrical > Air Conditioner > Data List
Tester Display Room Temperature Sensor OK
The display is as specified in the normal condition column.
Result
Proceed to OK NG
Result:
OK
REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to REMOVAL [11/2021 - ]
Result:
NG
See step 2
- Read the Data List according to the display on the GTS.
- INSPECT ROOM TEMP. SENSOR (COOLER THERMISTOR)
Refer to INSPECTION [11/2021 - ]
Result
Proceed to OK NG Result:
NG
REPLACE ROOM TEMP. SENSOR (COOLER THERMISTOR). Refer to REMOVAL [11/2021 - ]
Result:
OK
See step 3
- CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - ROOM TEMP. SENSOR (COOLER THERMISTOR))
- Disconnect the D65 room temp. sensor (cooler thermistor) connector.
- Disconnect the D53 air conditioning amplifier assembly connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition D65-1 or D53-5 (TR) - Other terminals and body ground Always 10 kΩ or higher D65-2 or D53-3 (SG-1) - Other terminals and body ground Always 10 kΩ or higher Result
Proceed to OK NG
Result:
OK
REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to REMOVAL [11/2021 - ]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR