Mazda B-Series 1997 Workshop Manual page 517

FT
CONTROL SYSTEM (FOR 3 . 0 ~ )
Transm~ss~on control
On
sw~tch
(TCS)
Sw~tch off
1
PID ON
Open or short from TCS
- - - -
- -
to PCM.
PID OFF
Remark Possible Cause
- - - - -
Open or short from CCS
-
I
to PCM
- -
-
Terminal
-
- - -
28
(Output)
- --
30
1
Octane adjust
(Input)
Constant
Coast clutch solenold
(CCS)
i
OV
I
PID CLOSED
D~sconnect shortlng bar
Open clrcult.
-
O/D OFF l~ght ON
I
1
Below 1 .OV
33
1
Vehicle speed sensor
!
Constant
(Input) (VSS) (-)
I
O/D OFF llght OFF B+
- -
-
-
- - -
I o V -
Poor ground or open from
VSS to PCM.
c
-
-
-
+
- - -
-,--
- -
- -
3 6
EG(MAF~
1
Constant
O V - Poor connection at PCM
(Input) sensor return
c
- -
-
I
- - - - - -
-
-
I
-
_
- - -
Open from MAF to PCM - -
- - -
35
(Input)
I
Transmiss~on fluid at
37
1
Transmlss~on fluld
I
approx. 3 O V
Open or short from TFT
amb~ent temperature
I
temperature
(TFT)
-
to PCM
(Input) Transm~ss~on overheat
/
operating temperature cond~t~on
p y ON
Heated oxygen
1
OV
Open or short from
sensor-1 2 (rear) Englne running at operating Below 0.2V
I
*l
sensor to PCM
;
temperature Contamrnat~on
I
I
Englne at operating Open or short from ECT
temperature (ECT) temperature approx 0 6V PID 120-200°F to PCM
I
-
-
-
-
-
- -
a
- - - -
4
Key ON
Intake alr temperature Hot idle
( I t )
I
(IAT) sensor
I
30 m ~ h
'
2 5 V
i
- -
PID 50-,200F
Open or short from IAT to
2.5V
-
1
PCM
- -- -
55 mph
--
- -
--
- - -
Englne off
Fuel pump mon~tor
-
- - -
Enaine runnlna
.
-
PID OFF Open or short from fuel
B+ PID ON pump relay to PCM
" "
-- - -
,
- - - --
- -
--
-
-
- -
-
- - - -
AIC on
A/C cycling switch
----
- - ---- - - - -
I
Open or short from swltch
N C off O V PID OFF
'
PCM.
vacuum regulator en circuit from EVR
TR sensor out of
Open or short from TR
sensor to PCM.
*1:
When catalyst monitor
is
on, voltage switches at
0.45V.
7BUOFT-233