Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSSUBARU1998LEGACY BRIGHTON WAGON AWD F4-2.2L SOHCREPAIR AND DIAGNOSISCRUISE CONTROLTESTING AND INSPECTIONSYMPTOM RELATED DIAGNOSTIC PROCEDURESBASIC DIAGNOSTIC PROCEDURE
1998 Subaru Legacy Brighton Wagon AWD F4-2.2L SOHC
Basic Diagnostic Procedure
1998 Subaru Legacy Brighton Wagon AWD F4-2.2L SOHCSECTION Basic Diagnostic Procedure
Diagnostics Chart for On-board Diagnosis System
BASIC DIAGNOSTIC PROCEDURE
6A1: CHECK CRUISE CONTROL MAIN SWITCH.
1. Trouble occurs.
2. Perform pre-inspection.
3. Check cruise control main switch.
CHECK: Does cruise control main switch turn ON?
YES: Go to step 6A2.
NO: Go to "Diagnostics Chart for Power Line".
6A2: CHECK CRUISE SPEED IS SET.
CHECK: Does cruise speed properly set while driving at minimum of 40 km/h (25 MPH)?
YES: Go to step 6A3.
NO: Go to "Diagnostics Chart with Trouble Code".
6A3: CHECK CRUISE CONTROL IS RELEASED.
CHECK: Does cruise control properly release during operation?
YES: Go to step 6A4.
NO: Go to "Diagnostics Chart with Trouble Code".
6A4: CHECK CRUISE SPEED IS HELD WITHIN SET SPEED.
CHECK: Does cruise speed hold within set speed ± 3 km/h (2 MPH)?
YES: Go to step 6A5.
NO: Go to pre-inspection of actuator, vacuum pump and valve.
6A5: CHECK RESUME/ACCEL SWITCH.
CHECK: Does RESUME/ACCEL switch function properly?
YES: Go to step 6A6.
NO: Go to "Diagnostics Chart with Trouble Code".
6A6: CHECK SET/COAST SWITCH.
CHECK: Does SET/COAST switch function properly?
YES: Go to step 6A7.
NO: Go to "Diagnostics Chart with Trouble Code".
6A7: CHECK CANCEL SWITCH.
CHECK: Does CANCEL switch function properly?
YES: Go to step 6A8.
NO: Go to "Diagnostics Chart with Trouble Code".
6A8: CHECK CRUISE SPEED IS RELEASED.
CHECK: Does cruise speed release when brake pedal is depressed?
YES: Go to step 6A9.
NO: Go to "Diagnostics Chart with Trouble Code".
6A9: CHECK CRUISE SPEED IS RELEASED.
CHECK: Does cruise speed release when clutch pedal is depressed (MT) or when selector lever is set to N (AT)?
YES: Cruise control system is in correct order.
NO: Go to "Diagnostics Chart with Trouble Code".
BASIC DIAGNOSTIC PROCEDURE
6A1: CHECK CRUISE CONTROL MAIN SWITCH.
1. Trouble occurs.
2. Perform pre-inspection.
3. Check cruise control main switch.
CHECK: Does cruise control main switch turn ON?
YES: Go to step 6A2.
NO: Go to "Diagnostics Chart for Power Line".
6A2: CHECK CRUISE SPEED IS SET.
CHECK: Does cruise speed properly set while driving at minimum of 40 km/h (25 MPH)?
YES: Go to step 6A3.
NO: Go to "Diagnostics Chart with Trouble Code".
6A3: CHECK CRUISE CONTROL IS RELEASED.
CHECK: Does cruise control properly release during operation?
YES: Go to step 6A4.
NO: Go to "Diagnostics Chart with Trouble Code".
6A4: CHECK CRUISE SPEED IS HELD WITHIN SET SPEED.
CHECK: Does cruise speed hold within set speed ± 3 km/h (2 MPH)?
YES: Go to step 6A5.
NO: Go to pre-inspection of actuator, vacuum pump and valve.
6A5: CHECK RESUME/ACCEL SWITCH.
CHECK: Does RESUME/ACCEL switch function properly?
YES: Go to step 6A6.
NO: Go to "Diagnostics Chart with Trouble Code".
6A6: CHECK SET/COAST SWITCH.
CHECK: Does SET/COAST switch function properly?
YES: Go to step 6A7.
NO: Go to "Diagnostics Chart with Trouble Code".
6A7: CHECK CANCEL SWITCH.
CHECK: Does CANCEL switch function properly?
YES: Go to step 6A8.
NO: Go to "Diagnostics Chart with Trouble Code".
6A8: CHECK CRUISE SPEED IS RELEASED.
CHECK: Does cruise speed release when brake pedal is depressed?
YES: Go to step 6A9.
NO: Go to "Diagnostics Chart with Trouble Code".
6A9: CHECK CRUISE SPEED IS RELEASED.
CHECK: Does cruise speed release when clutch pedal is depressed (MT) or when selector lever is set to N (AT)?
YES: Cruise control system is in correct order.
NO: Go to "Diagnostics Chart with Trouble Code".
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.