Subaru Crosstrek Service Manual: Dtc p0073 ambient air temperature sensor circuit "a" high

Subaru Crosstrek Service Manual / Engine (diagnostics)(h4do) / Diagnostic procedure with diagnostic trouble code (dtc) / Dtc p0073 ambient air temperature sensor circuit "a" high

ENGINE (DIAGNOSTICS)(H4DO) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)

DTC P0073 AMBIENT AIR TEMPERATURE SENSOR CIRCUIT "A" HIGH

NOTE:

For the diagnostic procedure, refer to DTC P0072. Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P0072 AMBIENT AIR TEMPERATURE SENSOR CIRCUIT "A" LOW">

1. OUTLINE OF DIAGNOSIS

Detect the open or short circuit of ambient temperature sensor.

Judge as NG if out of specification.

2. COMPONENT DESCRIPTION

Ambient temperature sensor is connected to combination meter. ECM receives the data of ambient temperature sensor via CAN communication with combination meter.

(1)

Ambient sensor

(2)

Resistance value (k?)

(3)

Ambient air temperature (°C (°F))

3. EXECUTION CONDITION

Secondary Parameters	Execution condition
Battery voltage	≥ 10.9 V

4. GENERAL DRIVING CYCLE

Always perform the diagnosis continuously.

5. 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
Output voltage	> 4.88 V

Time Needed for Diagnosis: 2500 ms

Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.

Dtc p0072 ambient air temperature sensor circuit "a" low

ENGINE (DIAGNOSTICS)(H4DO) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC P0072 AMBIENT AIR TEMPERATURE SENSOR CIRCUIT "A" LOWDTC detecting condition:Immediately at fault re ...

Dtc p0101 mass or volume air flow sensor "a" circuit range/performance

ENGINE (DIAGNOSTICS)(H4DO) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC P0101 MASS OR VOLUME AIR FLOW SENSOR "A" CIRCUIT RANGE/PERFORMANCEDTC DETECTING CONDITION:Detected ...

Other materials:

All-Wheel Drive warning light (CVT models)
This light blinks if the vehicle is driven with tires of differing diameters fitted on the wheels or with an excessively low air pressure in any of the tires. WARNING If the AWD warning light flashes, promptly park in a safe location then check whether all four tires are the same diamete ...

Disassembly
CLUTCH SYSTEM > Operating CylinderDISASSEMBLY1. Remove the boot and push rod.2. Apply compressed air through clutch hose attachment hole.NOTE:Face the piston hole down and place a piece of wood underneath to prevent the piston from popping out.3. Separate the piston and piston spring. ...

Inspection
DRIVE SHAFT SYSTEM > Rear Drive ShaftINSPECTIONCheck the removed parts for damage, wear, corrosion etc. Repair or replace if defective.• DOJ (Double Offset Joint):Check for seizure, corrosion, damage, wear and excessive play.• BJ (Bell Joint):Check for seizure, corrosion, damage and e ...