EN(H4SO)(diag)-2
Basic Diagnostic Procedure
ENGINE (DIAGNOSTICS)
1. Basic Diagnostic Procedure
A: PROCEDURE
1. ENGINE
Step
Check
Yes
No
1
CHECK ENGINE START FAILURE.
1) Ask the customer when and how the trouble
occurred using the interview check list. <Ref. to
EN(H4SO)(diag)-3, CHECK, Check List for
Interview.>
2) Start the engine.
Does the engine start?
Go to step
2
.
Inspection using
“Diagnostics for
Engine Start Fail-
ure”. <Ref. to
EN(H4SO)(diag)-
69, Diagnostics for
Engine Starting
Failure.>
2
CHECK ILLUMINATION OF MALFUNCTION
INDICATOR LIGHT.
Does the malfunction indicator
light illuminate?
Go to step
3
.
Inspection using
“General Diagnos-
tic Table”. <Ref. to
EN(H4SO)(diag)-
306, INSPEC-
TION, General
Diagnostic Table.>
3
CHECK COMMUNICATION STATUS.
1) Turn the ignition switch to OFF.
2) Connect the Subaru Select Monitor or gen-
eral scan tool to the data link connector.
3) Turn the ignition switch to ON, and run the
Subaru Select Monitor or general scan tool.
NOTE:
• Subaru Select Monitor
For detailed procedures, refer to “Subaru Select
Monitor”. <Ref. to EN(H4SO)(diag)-34, Subaru
Select Monitor.>
• General scan tool
For detailed operation procedures, refer to the
general scan tool operation manual.
Does Subaru select monitor or
general scan tool communicate
with vehicle normally?
Go to step
4
.
Inspection using
“Diagnostics Pro-
cedure for Subaru
Select Monitor
Communication”.
<Ref. to
EN(H4SO)(diag)-
84, Diagnostic Pro-
cedure for Subaru
Select Monitor
Communication.>
4
CHECK DTC.
Read DTC using Subaru Select Monitor or gen-
eral scan tool.
NOTE:
• Subaru Select Monitor
Refer to “Read Diagnostic Trouble Code” for
detailed operation procedure. <Ref. to
EN(H4SO)(diag)-43, Read Diagnostic Trouble
Code (DTC).>
• General scan tool
For detailed operation procedures, refer to the
general scan tool operation manual.
Is DTC displayed on the Subaru
Select Monitor or general scan
tool?
Record the DTC.
Repair the trouble
cause. <Ref. to
EN(H4SO)(diag)-
86, List of Diagnos-
tic Trouble Code
(DTC).>
Go to step
5
.
Repair the related
parts.
NOTE:
If DTC is not shown
on display although
the malfunction indi-
cator light illumi-
nates, perform the
diagnosis of mal-
function indicator
light circuit or combi-
nation meter. <Ref.
to EN(H4SO)(diag)-
60, Malfunction Indi-
cator Light.>
5
PERFORM DIAGNOSIS.
1) Perform the Clear Memory Mode. <Ref. to
EN(H4SO)(diag)-55, Clear Memory Mode.>
2) Perform the Inspection Mode. <Ref. to
EN(H4SO)(diag)-44, Inspection Mode.>
Is DTC displayed on the Subaru
Select Monitor or general scan
tool?
Inspect using
“Diagnostic Proce-
dure with Diagnos-
tic Trouble Code
(DTC)”. <Ref. to
EN(H4SO)(diag)-
93, Diagnostic Pro-
cedure with Diag-
nostic Trouble
Code (DTC).>
Finish the diagno-
sis.
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Page 23: ...NT 6 Note NOTE A Front B Rear 1 Front crossmember 2 Rear differential 1 2 A B NT 00210...
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Page 725: ...EN H4SO diag 308 General Diagnostic Table ENGINE DIAGNOSTICS...
Page 926: ...GD H4SO 202 Diagnostic Trouble Code DTC Detecting Criteria GENERAL DESCRIPTION...
Page 1181: ...EX H4DOTC 16 Muffler EXHAUST...
Page 1212: ...CO H4DOTC 32 Engine Cooling System Trouble in General COOLING...
Page 1221: ...IG H4DOTC 8 Ignition Coil IGNITION...
Page 1818: ...GD H4DOTC 230 Diagnostic Trouble Code DTC Detecting Criteria GENERAL DESCRIPTION...
Page 2154: ...5MT 82 General Diagnostic Table MANUAL TRANSMISSION AND DIFFERENTIAL...
Page 2227: ...RS 20 General Diagnostic Table REAR SUSPENSION...
Page 2364: ...DS 36 General Diagnostic Table DRIVE SHAFT SYSTEM...
Page 2615: ...BR 48 General Diagnostic Table BRAKE...
Page 2624: ...PB 10 General Diagnostic Table PARKING BRAKE...
Page 2681: ...PS 58 General Diagnostic Table POWER ASSISTED SYSTEM POWER STEERING...
Page 2730: ...AC 50 General Diagnostic Table HVAC SYSTEM HEATER VENTILATOR AND A C...
Page 2961: ...SB 22 Rear Seat Belt SEAT BELT SYSTEM...
Page 3035: ...COM 6 Horn Switch COMMUNICATION SYSTEM...
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Page 3240: ...EI 74 Ornament EXTERIOR INTERIOR TRIM...
Page 3286: ...CC 12 Neutral Position Switch CRUISE CONTROL SYSTEM...
Page 3311: ...CC diag 26 Diagnostic Procedure with Cancel Code CRUISE CONTROL SYSTEM DIAGNOSTICS...
Page 3421: ...LAN diag 88 General Diagnostic Table LAN SYSTEM DIAGNOSTICS...
Page 3486: ...WI 67 Remote Engine Start System WIRING SYSTEM...