ENGINE (DIAGNOSTICS)(H4DO) > Malfunction Indicator Light
ACTIVATION OF MALFUNCTION INDICATOR LIGHT
1. When the ignition switch is turned to ON (engine OFF), the malfunction indicator light (A) in the combination meter illuminates.
NOTE:
If the malfunction indicator light does not illuminate, perform diagnostics of the malfunction indicator light circuit or the combination meter circuit. Malfunction Indicator Light > MALFUNCTION INDICATOR LIGHT DOES NOT COME ON">

2. After starting the engine, the malfunction indicator light goes out. If it does not go off, any of the engine and emission control system has malfunction.

(1) | No faulty |
(2) | Trouble occurs |
(3) | ON |
(4) | OFF |
(5) | Ignition switch ON |
(6) | Engine start |
3. If the diagnostic system detects a misfire which could damage the catalyst, the malfunction indicator light will blink at a cycle of 1 Hz.

(1) | ON |
(2) | OFF |
(3) | Ignition switch ON |
(4) | Engine start |
(5) | Misfire start |
(6) | 1 second |
4. Install the delivery (test) mode fuse (A) with ignition switch to OFF.
CAUTION:
Do not use any fuses that are installed on the vehicle.

(1) When the ignition switch is turned to ON (engine OFF), the malfunction indicator light illuminates.
(2) After the engine starts, malfunction indicator light blinks in a cycle of 0.5 Hz. (During diagnosis)
(3) Malfunction indicator light blinks at a cycle of 3 Hz after diagnosis if there is no trouble. Malfunction indicator light illuminates if faulty.

(1) | ON |
(2) | OFF |
(3) | Ignition switch ON |
(4) | 1 second |
Malfunction indicator light remains blinking
Malfunction indicator light does not come onUnder-floor storage compartment
CAUTION
While driving the Subaru Ascent, always ensure that the under-floor storage
compartment lid is securely closed. An open lid may become a hazard during sudden
braking or in the event of a collision.
Do not place flammable materials, pressurized containers, or corrosive
substanc ...
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