Outback [Legacy] AWD F4-2.5L DOHC (1996)
Malfunction Indicator Lamp: Testing and Inspection
DIAGNOSIS
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The "CHECK ENGINE" Malfunction Indicator Lamp (MIL) circuit is in short or open.
TROUBLE SYMPTOM
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Trouble Symptom 1: When Ignition Switch is turned to "ON" (Engine OFF), MIL does not illuminate.
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Trouble Symptom 2: Although MIL illuminates, trouble code is not shown on Subaru Select Monitor or the OBD-II General Scan Tool display.
WIRING DIAGRAM
1. Classify the malfunction. Is it a Trouble Symptom 1 or Trouble Symptom 2?
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If the malfunction shows Trouble Symptom 1, go to step 2.
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If the malfunction shows Trouble Symptom 2, go to step 4.
2. Check output signal from Engine Control Module (ECM).
a. Turn Ignition Switch to "ON".
b. Measure voltage between ECM and body.
[CHECK]:Connector & terminal (B84) No. 31 - Body/ 1 Volts, or less.
[YES]:
Go to step 3.
[NO]:
If Malfunction Indicator Lamp (MIL) comes on when shaking or pulling ECM connector and harness, repair ECM connector.
Check that ECM connector is correctly connected. If the MIL does not come on even when ECM connector is correctly connected,
replace the ECM.