DTC P0071 Ambient Air Temperature Sensor Circuit "A" Range/Performance: DTC Detecting Condition

WARNING: This page is about a different variant/trim than selected.

Detected when two consecutive driving cycles with fault occur.
GENERAL DESCRIPTION < Ref. to DTC P0071 AMBIENT AIR TEMPERATURE SENSOR CIRCUIT "A" RANGE/PERFORMANCE , Diagnostic Trouble Code (DTC) Detecting Criteria. >

CAUTION: After servicing or replacing faulty parts, perform Clear Memory Mode < Ref. to OPERATION , Clear Memory Mode. >, and Inspection Mode < Ref. to PROCEDURE , Inspection Mode. >.

DIAGNOSTIC PROCEDURE

Step	Check	Yes	No
1 CHECK FOR ANY OTHER DTC ON DISPLAY.	Is any other DTC displayed?	Check the appropriate DTC using the "List of Diagnostic Trouble Code (DTC)". < Ref. to LIST OF DIAGNOSTIC TROUBLE CODE (DTC) . >	Go to step 2.
2 CHECK CURRENT DATA. Turn the ignition switch to ON. Read the value of «Ambient Air Temperature» using the Subaru Select Monitor or a general scan tool. NOTE: Subaru Select Monitor For detailed operation procedures, refer to "Current Data Display For HVAC System". < Ref. to READ CURRENT DATA . > General scan tool For detailed operation procedures, refer to the general scan tool operation manual. Read the change of the value in «Ambient Air Temperature» while heating and cooling the ambient sensor using a hair dryer. CAUTION: Do not heat the part to the temperature where you cannot touch it with your bare hand in order to prevent burning yourself and protect the part.	Does the value of «Ambient Air Temperature» change between heating and cooling?	Repair the poor contact of ECM connector.	Replace the ambient sensor. < Ref. to AMBIENT SENSOR . >