DTC B1507: Outside Temperature Sensor Open Detected [11/2021 - ]: Procedure

1. Check for DTCs.

   Body Electrical > Combination Meter > Trouble Codes 

   OK

   DTC B1507 (current code) is not output.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

See step  3

Result: 

OK 

See step  2

1. Disconnect the A24 ambient temperature sensor(thermistor assembly) connector.
2. Disconnect the F11 combination meter assembly connector.
3. Check the condition of each connector.

   OK

   Each connector is normal.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

USE SIMULATION METHOD TO CHECK 

HINT: 

• Even if DTC is displayed, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.

  Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2021 - ]

• In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.

Result: 

NG 

REPAIR OR REPLACE THE POOR CONTACT OF CONNECTOR. 

1. Read the Data List according to the display on the GTS.

   Body Electrical > Combination Meter > Data List 

   Tester Display	Measurement Item	Range	Diagnostic Note
   Ambient air temperature	External temperature sensor value display	-40 - 80 °C (-40 to 176 °F)	-

   Body Electrical > Combination Meter > Data List 

   Tester Display
   Ambient air temperature

   OK

   The value of the Data List item is correct.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [11/2021 - ] 

Result: 

NG 

See step  4

Refer to INSPECTION [11/2021 - ]

Result

Result: 

NG 

REPLACE AMBIENT TEMPERATURE SENSOR(THERMISTOR ASSEMBLY). Refer to  REMOVAL [11/2021 - ] 

Result: 

OK 

See step  5

1. Disconnect the A24 ambient temperature sensor(thermistor assembly) connector.
2. Disconnect the F11 combination meter assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A24-2 - F11-23(OUT TEMP SENSOR+)	Always	Below 10 Ω
   A24-1 - F11-24(OUT TEMP SENSOR GND)	Always	Below 10 Ω
   A24-2 or F11-23(OUT TEMP SENSOR+) - Body ground	Always	10 kΩ or higher
   A24-1 or F11-24(OUT TEMP SENSOR GND) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [11/2021 - ] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR