Subaru Outback (BR): Engine (Diagnostics)
Subaru Outback (BR) 2010-2015 Service Manual / Engine - H4SO / Engine (Diagnostics)
- Basic Diagnostic Procedure of Engine - H4SO
- Engine Control Module (ECM) I/O Signal
- Inspection Mode
- Drive Cycle
- Malfunction Indicator Light
- Diagnostic Procedure with Diagnostic Trouble Code (DTC)
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Basic Diagnostic Procedure of Engine - H4SO
A: PROCEDURE
1. ENGINE
Check List for Interview
A: CHECK
1. CHECK LIST NO. 1
Check the following item when problem has occurred.
NOTE: Use copies of this page for interviewing customers.
Engine Control Module (ECM) I/O Signal
A: ELECTRICAL SPECIFICATION
Input/output name:
Crankshaft position sensor
Camshaft position sensor
Measuring condition:
After warming-up
At idling
Engine Condition Data
A: ELECTRICAL
Inspection Mode
A: PROCEDURE
Perform the diagnosis shown in the following DTC table.
When performing the diagnosis not listed in "List of Diagnostic Trouble Code (DTC)",
refer to the item on the
drive cycle. <Re
SEE MORE:
Roll Connector
A: REMOVAL
1) Position the front wheels straight ahead. (After moving a vehicle 5 m (16
ft) or more with front wheels positioned
straight ahead, make sure that the vehicle moves straight ahead.)
2) Turn the ignition switch to OFF.
3) Disconnect the ground cable from battery and wait for at least 6
DTC P0171, P0172, P0181, P0182, P0183, P0196, P0197, P0198, P0201, P0202,
P0203, P0204, P0222, P0223, P0301, P0302, P0303, P0304
AR:DTC P0171 SYSTEM TOO LEAN (BANK 1)
1. OUTLINE OF DIAGNOSIS
Detect fuel system malfunction by the amount of main feedback control.
Diagnostic method
Fuel system is diagnosed by comparing the target air fuel ratio calculated by
ECM with the actual air fuel ratio
measured by sensor.
2. ENABLE CONDI
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