Apple Technician Guide MacBook Pro (17-inch, Early 2009) - tim.id.au

2010-06-11
4. Does battery status indicate
the battery is not recognized
with a single LED on that
chases back and forth 5 times?
5. Does battery status indicate
the battery is recognized but
not charging with all LEDs
blinking?
6. Does battery status indicate
battery charge and flash the
next level 5 times?
7. Does battery status indicate a
low battery with a LED flashing
rapidly indicating initial
charging of battery?
8. Test with a known-good
battery. Is battery recognized
and charging?
9. Inspect customer battery cable
connector for corrosion or
obstructions.
10. Reseat battery harness at logic
board connector, and retest.
Is battery recognized and
charging?
Yes Go to step 8 and tag battery
as a possible P11 candidate.
No Go to step 5
Yes Go to step 8 and tag battery
as a possible P10 candidate
No Go to step 6
Yes Customer battery charging,
check battery condition. Go
to step 13
No Flashing first LED only, go to
step 7
No battery status LEDs on, go
to step 11
Yes Allow customer battery to
charge to 1 LED on before
checking battery condition.
Go to step 13.
No Go to step 8
Yes Replace customer battery
(P10 not charging or P11 not
recognized)
No Go to step 9
Yes Clear obstructions and
replace battery if corroded
and recheck. (P10 not
charging or P11 not
recognized)
No Go to step 10
Yes Issue resolved by cable reseat.
Check battery condition, go
to step 13
(P11)
(P10)
P10 or
P11
P10 or
P11
No Replace logic board M20
MacBook Pro (17-inch, Early 2009) Symptom Charts — Startup and Power Issues 45