Mazda 626 Station Wagon, Workshop Manual

Page: 47 / 577

CONTROL SYSTEM
Monitor item
(Definition)
Unit/
Condition
Condition/Specification Action
PCM
terminal
a t f
T 1
(Transaxle fluid
temperature)
°C °F
Transaxle fluid temperature 20 °C
{68 °F}: 20 °C {68 °F}
Transaxle fluid temperature 130 °C
{266 °F}: 130 °C {266 °F}
Inspect transaxle fluid temperature
sensor.
See Section K2-34 TRANSAXLE
FLUID TEMPERATURE (TFT)
SENSOR INSPECTION
37
ATFT V*1
(Transaxle fluid
temperature
sensor signal
voltage)
V
Transaxle fluid temperature 20 °C
{68 °F}: 3.3—3.4 V
Transaxle fluid temperature 130 °C
{266 °F}: 1.7— 1.8 V
Inspect transaxle fluid temperature
sensor.
See Section K2-34 TRANSAXLE
FLUID TEMPERATURE (TFT)
SENSOR INSPECTION
37
B+ (B+) V Ignition switch ON: B+
Inspect main relay.
See Section F
Inspect battery.
See Section G
55
BRKSW
(Brake switch)
ON/OFF
Brake pedal depressed: ON
Brake pedal released: OFF
Inspect brake switch.
See Section P
92
CHRGLMP
(Generator
warning light)
ON/OFF
Ignition switch ON: ON
Idle: OFF
Inspect generator warning light. 42
D SW*1
(TR switch [D
range])
ON/OFF
D range: ON
Others: OFF
Inspect TR switch.
See Section K2-30 TRANSAXLE
RANGE (TR) SWITCH
INSPECTION
6
EOT (ECT) °C °F
Engine coolant temperature
20 °C {68 °F}: 20 °C {68 °F}
Engine coolant temperature
60 °C {140 °F}: 60 °C {140 °F}
Inspect ECT sensor.
See Section F
38
ECTV
(ECT signal
voltage)
V
Engine coolant temperature
20 °C {68 °F}: 2.9—3.3 V
After warm up: Below 1.0 V
Inspect ECT sensor.
See Section F
38
FAN2
(Condenser fan
control)
ON/OFF
Engine coolant temperature above
112 °C {234 °F}: ON
Terminal TEN (DLC) shorted to
GND and throttle valve open: ON
A/C operating: ON
Others: OFF
Inspect following PIDs: RPM, TP V,
ECTV, A/C SW, TEN.
Inspect condenser fan relay.
See Section U
45
FAN3
(Cooling fan
control)
ON/OFF
Engine coolant temperature above
97 °C {207 °F}: ON
Terminal TEN (DLC) shorted to
GND and throttle valve open: ON
A/C operating: ON
Others: OFF
Inspect following PIDs: RPM, TP V,
ECTV, A/C SW, TEN.
Inspect condenser fan relay.
See Section U
47
FH02S (H02S) V
Ignition switch ON: 0— 1.0 V
After warm up: 0— 1.0 V
Acceleration (after warm up):
0.5— 1.0 V
Deceleration (after warm up):
0—0.5 V
Inspect H02S.
See Section F
60
FH02SH
(H02S heater)
ON/OFF
Ignition switch ON: ON (H02S
heater operated)
Idle: ON (H02S heater operated)
Engine speed above
approx. 3750 rpm: OFF
Inspect following PIDs: ECT V, MAF V.
Inspect H02S heater.
See Section F
94
FP RLY
(Fuel pump relay)
ON/OFF
Ignition switch ON: OFF
Idle: ON
Cranking: ON
Inspect following PID: RPM.
Inspect fuel pump relay.
See Section F
70*2
80*3
* 1: For ATX
*2: With Immobilizer system
*3: Without Immobilizer system
F1-26