Manual sections
Wiring diagrams- Abbreviations
- Accessory Drive Belts
- Airbag
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- Testing & Diagnostics
- Theory & Operation
- Timing Belt
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- Transmission Control Systems
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Repair manual
Testing & Diagnostics Subaru Legacy BL/BP
Step-by-step instructions on "Testing & Diagnostics" for Subaru Legacy BL/BP (2003–2006). Pick an article — removal, installation, adjustment and diagnostics with illustrations.
4subsections
38articles
1717illustrations
Engine (Diagnostics) (H4SO)
3 articlesDiagnostic Trouble Code (DTC) Detecting Criteria (H4SO)
4 articlesEngine (Diagnostics) (H4SO U5)
6 articlesDiagnostic Trouble Code (DTC) Detecting Criteria (H4SO U5)
25 articles- Diagnostic Trouble Code (DTC) Detecting Criteria (H4SO U5): Overview 27
- Diagnostic Trouble Code (DTC) Detecting Criteria (H4SO U5): Diagnosis 304
- Diagnostic Trouble Code (DTC) Detecting Criteria (H4SO U5): Other 185
- DTC P0050: HO2S HEATER CONTROL CIRCUIT (BANK 2 SENSOR 1)
- DTC P0051: HO2S HEATER CONTROL CIRCUIT LOW (BANK 2 SENSOR 1)
- DTC P0052: HO2S HEATER CONTROL CIRCUIT HIGH (BANK 2 SENSOR 1)
- DTC P0057: HO2S HEATER CONTROL CIRCUIT LOW (BANK 2 SENSOR 2)
- DTC P0058: HO2S HEATER CONTROL CIRCUIT HIGH (BANK 2 SENSOR 2)
- DTC P0151: O2 SENSOR CIRCUIT LOW VOLTAGE (BANK 2 SENSOR 1)
- DTC P0152: O2 SENSOR CIRCUIT HIGH VOLTAGE (BANK 2 SENSOR 1)
- DTC P0153: O2 SENSOR CIRCUIT SLOW RESPONSE (BANK 2 SENSOR 1)
- DTC P0154: O2 SENSOR CIRCUIT NO ACTIVITY DETECTED (BANK 2 SENSOR 1)
- DTC P0157: O2 SENSOR CIRCUIT LOW VOLTAGE (BANK 2 SENSOR 2)
- DTC P0158: O2 SENSOR CIRCUIT HIGH VOLTAGE (BANK 2 SENSOR 2)
- DTC P0159: O2 SENSOR CIRCUIT SLOW RESPONSE (BANK 2 SENSOR 2)
- DTC P0174: SYSTEM TOO LEAN (BANK 2)
- DTC P0175: SYSTEM TOO RICH (BANK 2)
- DTC P0302: CYLINDER 2 MISFIRE DETECTED
- DTC P0303: CYLINDER 3 MISFIRE DETECTED
- DTC P0304: CYLINDER 4 MISFIRE DETECTED
- DTC P0607: CONTROL MODULE PERFORMANCE 2
- DTC P1154: O 2 SENSOR CIRCUIT RANGE/PERFORMANCE (LOW) (BANK 2 SENSOR 1)
- DTC P1155: O 2 SENSOR CIRCUIT RANGE/PERFORMANCE (HIGH) (BANK 2 SENSOR 1)
- DTC P2098: POST CATALYST FUEL TRIM SYSTEM TOO LEAN BANK 2
- DTC P2099: POST CATALYST FUEL TRIM SYSTEM TOO RICH BANK 2