Mazda 626 - Page 48

CONTROL SYSTEM
Monitor item
(Definition)
Unit/
Condition
Condition/Specification Action
PCM
terminal
HOLD LP*1
(HOLD indicator
light)
ON/OFF
HOLD mode: ON
Others: OFF
Inspect HOLD indicator light. 43
HOLD SW*1
(HOLD switch)
ON/OFF
HOLD switch pressed: ON
Others:OFF
Inspect HOLD switch.
See Section K2-29 HOLD SWITCH
INSPECTION
29
IACV (IAC valve) %
Ignition switch ON: 19.9 %
Idle: 40—50 %
Inspect following PIDs: IATV, RPM,
ECT V, MAF V, TP V, NL SW, PSP
SW, A/C SW, TEN.
Inspect IAC valve.
See Section F
54,83
IAT (IAT)
LL
o
o
o
Intake air temperature
20°C {68°F}: 20°C {68°F}:
Inspect IAT sensor.
See Section F
39
IATV
(IAT sensor
signal voltage)
V
Intake air temperature
20°C {68°F}: 2.9—3.3 V
Intake air temperature
30°C {86°F}: 2.4—2.8 V
Inspect IAT sensor.
See Section F
39
IGT
(Ignition timing)
BTC
Ignition switch ON: 0.0
Idle: BTDC6°—18°
Inspect following PIDs: MAF V, IAT V,
RPM, TP V, ECT V, PSP SW, NL SW,
A/C SW, TEN.
Inspect CMP sensor.
See Section F
Inspect idle speed and ignition timing.
See F1 -20 ENGINE TUNE-UP
26, 52
INJ
(Fuel injection
duration)
MS
Ignition switch ON: 0.0 ms
Idle: 2.0—2.5 ms
Inspect following PIDs: MAF, V, IAT V,
RPM, TP V, ECT V, NL SW, FH02S,
PSP SW, BRK SW, A/C SW, B+.
Inspect CMP sensor.
See Section F
74,75,
100,101
KR (Knocking
retard)
DEG
Ignition switch ON: 0 DEG
Idle: 0 DEG
Inspect knock sensor
See Section F
57
LSW*1
(TR switch
[L range])
ON/OFF
L range: ON
Others: OFF
Inspect TR switch.
See Section K2-30 TRANSAXLE
RANGE (TR) SWITCH
INSPECTION
7
LINE*1
(Pressure control
solenoid)
A
ATF temperature at 60—70°C
{140—158° F}
• Idle: 0.94—0.96 A
• Stall (D range): 0.25—0.35 A
• Stall (R range): 0—0.05 A
Inspect pressure control solenoid.
See Section K2-38 SOLENOID
VALVES INSPECTION
44, 81
MAFV
(MAF signal
voltage)
V
Ignition switch ON: 1.2—1.6 V
Idle: 1.5—2.5 V
Inspect MAF sensor.
See Section F
88
NL SW
(Load/no load
condition signal)
ON/OFF
MTX
Neutral position: ON
Clutch pedal depressed: ON
Others: OFF
Inspect neutral switch.
See Section F
Inspect clutch switch.
See Section F
64
ATX
Selector lever at P or N: ON
Others: OFF
Inspect TR switch.
See Section K2-30 TRANSAXLE
RANGE (TR) SWITCH
INSPECTION
64
PRCV
(Pressure
regulator
control)
ON/OFF
Ignition switch ON: OFF
Idle: OFF
Engine start at hot condition: ON
Inspect following PIDs: ECT V, IAT V,
RPM, TP V, B+.
Inspect PRC solenoid valve.
See Section F
95
*1: For ATX
F1-27