Subaru Legacy 2003 Service Manual page 2303

AUTOMATIC TRANSMISSION (DIAGNOSTICS)
10.POWER Indicator Light Display
A: INSPECTION
When any on-board diagnostics item is malfunctioning, the display on the POWER indicator light blinks from
the time the malfunction is detected after starting the engine until the ignition switch is turned OFF. The mal-
functioning part or unit can be determined by a DTC during on-board diagnostics operation. Problems which
occurred previously can also be identified through the memory function. If the POWER indicator does not
show a problem (although a problem is occurring), the problem can be determined by checking the perfor-
mance characteristics of each sensor using the select monitor. Indicator signal is as shown in the figure.
• Ignition switch (engine OFF)
ON
OFF
• Normal
ON
OFF
• Abnormal (Trouble occurs.)
ON
OFF
• Normal (power switch ON)
ON
OFF
POWER INDICATOR LIGHT DISPLAY
2 secs
2 secs
2 secs
AT-28
0.25 secs
Blink
Power indicator light ON
AT-00344