Mazda 1990 323 Workshop Manual Supplement page 225

TROUBLESHOOTING GUIDE
K2
9
SHIFT POINT HIGH OR LOW
IESCRIP-
*Shift points do not match shift diagram (Refer to road test in this section)
rlON
[TROUBLESHOOTING HINTS]
3 ATF level low
@ Vehicle speed sensor malfunction
3 Throttle sensor malfunction or misadjusted @ Control valve stuck (1-2 shift valve, 2-3 shift valve, or
3 Idle switch worn 3-4 shift valve)
3 Pulse generator malfunction
TEP INSPECTION
ACTION
1 Check if ATF level is OK
Yes Go to next step
w page K2-134
Level:
Between notches on HOT side of level
gauge at 65% (149OF)
HOT RANGE
u page K2-134
TI!~
No Add ATF to specified level
2
Check if ATF condition is OK
Yes Go to next step
w page K2-134
@ Clear pink: Normal condition
@ Dark or black (with friction material):
Worn powertrain components
@ Milky pink: Water contamination
@ Light to dark brown (Oxidation):
Overheated or old fluid
No.2 condition
Overhaul transaxle and repair or re-
place parts as necessary w page K2-134
No.3 or No.4 condition
a page K2-106
Check for cause (Refer to s
w page K2-108
No Code No. displayed
Check main relay and voltage of termi-
nals 20 and 2s of EC-AT control unit
een IC terminal of
and diagnosis con-
K2-49