Control System (For 3.0L) Specification - Mazda B-Series 1997 Workshop Manual

FT
CONTROL SYSTEM (FOR 3 . 0 ~ )
I
Terminal
/
Connected To
!
Test Condition
I
Specification
(
Remark
'
Possible Cause
(
Key OFF
I
-
Key ON
-
-
PCM relay malfunction.
Open or short clrcult
- - - -
-
-
/
1
Vehicle power
Key ON B+
L
Lpp
- -
73
(Output)
I
Injector #5
- -
-
I
Hot idle 3.4-3 6 msec
- - -
-
2 9-5 7 msec
1
Open or short clrcult from
Injector #5 to PCM.
1
Driving 48 kmlh (30 mph)
Driving 88 km/h (55 mph)
1
5-8.8 msec
1
Key ON
- - -
/
74
1
Injector ~3
(Output)
Hot ~ d l e
-
- -
-
Driving 48 km/h (30 mph)
3.4-3.6 rnsec
Open or short circult from
injector #3 to PCM.
2.9-5.7 msec
Key ON
- - -
Hot idle
- -
3.4-3.6 msec
-
Driving 48 kmlh (30
. .
~
Drivina 88 kmlh (55
Open or short clrcult from
injector # I to PCM.
75
(Output)
Injector # I
Power ground Constant
- Poor connection at PCM
or open circuit.
Power ground
Ignition coil 3
Poor connection at PCM
or open circuit
-
Open or short from coll
#3 to PCM
Constant
- -
Constant
.
78
(Output)
-
- - -
- -
-A-
- -
+
-
- -
--
- -
-
TClL always ON
Lamp lllumlnated Below 1 O V PID ON Short circu~t from TClL to
79
[AT1
(Output)
Transmission control
indicator lamp (TCIL)
PCM.
-
PCM malfunction.
Lamp not illuminated B+ PID OFF TClL never ON.
open circult
- 1
- -
1
Fuel pump ON
80
Fuel pump relay
-
PID OFF
Open clrcult from fuel
(Output)
1
Fuel pump OFF PID ON pump relay to PCM
. - &
I
I
i i - p p p
- -
-
- - --
-
-
I Key ON
-
6-9V
81 Electronic pressure
(Output) control (EPC) solenoid
I I
-
Open or short clrcult from
EPC to PCM.
Drlvlng 88 kmth (55 mph)
-
-
-
-
- -
-
- - --
-
- - -
- - - -
Key ON
- - .
Hot Idle
Drivlng 88 krn/h
(55
mph)
Hot ldle 118Hz
I
PIDORPM
83
(Output)
Idle air
control
(IAC)
solenoid
- - - - -
Turb~ne shaft speed
Open or short clrcult from
(TSS) sensor D r ~ v n g 48 krnlh (30 mph) RPM TSS to PCM
PID 2200-2230
Driving 88 krnih (55 rnph)
/
220-290 Hz
RPM
Key ON
Cyl~nder identification 6.3-6.5 Hz
1
(camshaft position -
sensor)
--
I
Drivlno 88 krn/h (55
mob)
15 Hz
Open or short circuit from
camshaft pos~tion sensor
to PCM.