LEMON Manuals: Even more car manuals for everyone
Home >> Subaru >> 2024 >> Ascent Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Warning Systems >> Driver Monitor (Diagnostics) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC B1200: Driver Monitoring Control Module Out Of Operation Temperature Range

DTC B1200: Driver Monitoring Control Module Out Of Operation Temperature Range

DTC detecting condition: 

Detected when the temperature of the driver monitoring unit exceeds the operation range.

Trouble symptom: 

The driver monitoring system does not operate.

CAUTION: Before performing diagnosis, refer to "CAUTION" in "General Description". Ref. to DRIVER MONITOR (DIAGNOSTICS)>GENERAL DESCRIPTION>CAUTION .
  1. CHECK OPERATION TEMPERATURE 

    Set the temperature of the driver monitoring unit and its surroundings to an operation range temperature (-30 - 85 °C (-22 - 185 °F)).

    Did the temperature of the driver monitoring unit and its surroundings change to within the operation temperature range (-30 - 85 °C (-22 - 185 °F))?

    Yes:  Check the repair. Go to 2

    No:  Perform step 1 again. Go to 1

  2. CHECK REPAIR 
    1. Turn the ignition switch to ON.
    2. Using the Subaru Select Monitor, perform the clear memory of [Driver Monitor]. Ref. to COMMON (DIAGNOSTICS)>Clear memory
    3. Turn the ignition switch to OFF.
    4. Turn the ignition switch to ON.
    5. Wait for 2 minutes.
    6. Read the DTC of [Driver Monitor] using the Subaru Select Monitor. Ref. to DRIVER MONITOR(DIAGNOSTICS)>Diagnostic Trouble Code (DTC) 

    Is DTC B1200 displayed? (Current code)

  3. Yes:  Replace Driver Monitoring Unit. Ref. to INSTRUMENTATION/DRIVER INFO>Driver Monitoring Unit

    No:  Finish the diagnosis.