Subaru LEGACY 2003 Service Manual page 93
Engine section 1
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- Service manual (4441 pages) ,
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DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
M: DTC 45 PRESSURE SENSOR
• DIAGNOSIS:
• The pressure sensor signal is abnormal.
• The harness connector between ECM and pressure sensor is in short or open.
• TROUBLE SYMPTOM:
• Erroneous idling
• Engine stalls.
• Poor driving performance
CAUTION:
After repair or replacement of faulty parts, conduct CLEAR MEMORY and INSPECTION MODES. <Ref.
to EN(H4SOw/oOBD)-28, OPERATION, Clear Memory Mode.> and <Ref. to EN(H4SOw/oOBD)-26, OP-
ERATION, Inspection Mode.>
• WIRING DIAGRAM:
INTAKE AIR
TEMPERATURE
AND
PRESSURE
SENSOR
E21
E2
B21
ECM
B136
EN(H4SOw/oOBD)-91
4
6
B83
ENGINE (DIAGNOSTICS)
E20
1 2 3 4
B21
1 2
3 4
5
6 7
8
9 10
11 12
13
14 15
16
17 18
19 20
B83
1 2 3 4 5 6 7 8 9 10 11 12
B136
1
2
3
5
6 7
4
8
9
10
11 12 13 14 15
16 17 18
19 20
21
22
23
26 27
28 29
30
24 25
EN-01055
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