DTC P0068 Map/MAF - Throttle Position Correlation: 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 P0068 MAP/MAF - THROTTLE POSITION CORRELATION , 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 AIR INTAKE SYSTEM.	Are there holes, loose bolts or disconnection of hose on air intake system?	Repair the air intake system.	Go to step 2.
2 CHECK MANIFOLD ABSOLUTE PRESSURE SENSOR. Start the engine and warm up engine until coolant temperature is higher than 75°C (167°F). Place the select lever in "P" range or "N" range. Turn the A/C switch to OFF. Turn all the accessory switches to OFF. Read the data of intake manifold pressure sensor signal using Subaru Select Monitor or general scan tool. NOTE: Subaru Select Monitor For detailed operation procedures, refer to "READ CURRENT DATA FOR ENGINE". Ref. to SUBARU SELECT MONITOR . General scan tool For detailed operation procedures, refer to the General Scan Tool Instruction Manual.	Is the measured value 73.3 - 106.6 kPa (550 - 800 mmHg, 21.65 - 31.50 inHg) when the ignition is turned ON, and 20.0 - 46.7 kPa (150 - 350 mmHg, 5.91 - 13.78 inHg) during idling?	Go to step 3.	Replace the manifold absolute pressure sensor. Ref. to MANIFOLD ABSOLUTE PRESSURE SENSOR .
3 CHECK THROTTLE OPENING ANGLE. Read the data of throttle position signal using Subaru Select Monitor or general scan tool. NOTE: Subaru Select Monitor For detailed operation procedures, refer to "READ CURRENT DATA FOR ENGINE". Ref. to SUBARU SELECT MONITOR . General scan tool For detailed operation procedures, refer to the General Scan Tool Instruction Manual.	Is the measured value less than 5% when throttle is fully closed?	Go to step 4.	Replace the electronic throttle control. Ref. to THROTTLE BODY .
4 CHECK THROTTLE OPENING ANGLE.	Is the measured value 85% or more when throttle is fully open?	Replace the manifold absolute pressure sensor. Ref. to MANIFOLD ABSOLUTE PRESSURE SENSOR .	Replace the electronic throttle control. Ref. to THROTTLE BODY .