Mazda 626 Station Wagon, Workshop Manual

Page: 315 / 577

ON-BOARD DIAGNOSTIC
DTC P0758
DTC P0758 Shift solenoid B malfunction (electrical)
DETECTION
CONDITION
If PCM detects either of following conditions, PCM determines that shift solenoid B circuit has a
malfunction:
— Shift solenoid B voltage is stuck at B+ after engine start.
— Shift solenoid B voltage is stuck at 0 V after engine start.
POSSIBLE
CAUSE
Shift solenoid B malfunction
Short to ground between ATX connector terminal C and PCM terminal 99
Short to power between ATX connector terminal C and PCM terminal 99
Open circuit between shift solenoid B terminal B and ATX connector terminal C
Open circuit between ATX connector terminal C and PCM terminal 99
Open circuit between shift solenoid B terminal A and body ground point
Damaged connector between shift solenoid B and PCM
PCM malfunction
ATX C O N N E C TO R
S H IF T S O L E N O ID B
HAR NESS S ID E C O N N E C TO R
(V IE W FRO M H A R N E SS SIDE)
HA R N E S S SID E C O N N E C TO R
(V IE W FRO M H ARNESS SIDE)
m
PCM
r r r
I
l i V
C D
C D
l i i i i
I
,
q i
. i : i ; i : i : i . i . i . i . 1 . 1 . i
i i i i i i i i i i i i i
J i i i i i Iqqi i i \ r
I
H A R N E SS SIDE C O N N E C TO R
(V IE W FROM TER M IN A L SID E )
K2-108