Subaru Crosstrek Service Manual: Dtc u0424 invalid data received from hvac control module

Subaru Crosstrek Service Manual / Continuously variable transmission (diagnostics) / Diagnostic procedure with diagnostic trouble code (dtc) / Dtc u0424 invalid data received from hvac control module

CONTINUOUSLY VARIABLE TRANSMISSION (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)

DTC U0424 INVALID DATA RECEIVED FROM HVAC CONTROL MODULE

NOTE:

Refer to “LAN SYSTEM (DIAGNOSTICS)” for diagnostic procedure. Basic Diagnostic Procedure">

1. OUTLINE OF DIAGNOSIS

• Detect malfunction of CAN communication.

• Judge as NG when data received from the A/C control panel is not normal.

2. EXECUTION CONDITION

Secondary parameters	Execution condition
12 V battery system voltage	≥ 10 V
Measured turbine shaft speed	> 0 rpm
or
Transmission range	Drive or Reverse

3. DIAGNOSTIC METHOD

If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.

Judgment Value

Malfunction Criteria	Threshold Value
CAN data from A/C control panel	Freeze

Time Needed for Diagnosis: 2 seconds

Malfunction Indicator Light Illumination: Does not illuminate.

Dtc u0423 invalid data received from instrument panel cluster control module

CONTINUOUSLY VARIABLE TRANSMISSION (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC U0423 INVALID DATA RECEIVED FROM INSTRUMENT PANEL CLUSTER CONTROL MODULENOTE:Refer to & ...

Dtc u0073 control module communication bus off

CONTINUOUSLY VARIABLE TRANSMISSION (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC U0073 CONTROL MODULE COMMUNICATION BUS OFFNOTE:Refer to “LAN SYSTEM (DIAGNOSTICS) ...

Other materials:

Dtc b1431 in-vehicle (post evaporator) temperature sensor circuit short-circuit
HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC B1431 IN-VEHICLE (POST EVAPORATOR) TEMPERATURE SENSOR CIRCUIT SHORT-CIRCUITDTC detecting condition:In-vehicle sensor circuit is shorted.Trouble symptom:In-vehicle air temperature is falsely recognize ...

Viewing range on the screen
CAUTION The range that can be viewed with the rear view camera is limited. Always be sure to check with your eyes when moving backward and proceed slowly. Range of view Range of view Image from camera The area from the rear end of the bumper can be viewed. Areas at both ends ...

Installation
HVAC SYSTEM (HEATER, VENTILATOR AND A/C) > CondenserINSTALLATIONCAUTION:• If the condenser assembly - air conditioner has been replaced, add an appropriate amount of compressor oil. Compressor Oil > ADJUSTMENT">• Replace the O-rings with new parts, and then apply compresso ...