Mazda 626 Station Wagon, Workshop Manual

Page: 187 / 577

ON-BOARD DIAGNOSTIC SYSTEM
DTC
No.
Output pattern
Diagnosed
circuit
Detection condition Fail-safe
x : Applied
Not applied
Memory
function
P0335
1 1 1
Crankshaft
position
signal
circuit Crankshaft position signal is
not inputted to the PCM when
the engine speed is above
400 rpm.
• Fixes TCV control
signal (duty signal)
at
2
%.
P0380
HI
Glow plug
relay signal
circuit
When the glow plug relay is on,
the current voltage signal of
the relay below 1.0 V is
inputted to the PCM
continuously for more than
1.0
sec.
When the glow plug relay is off,
the current voltage signal of
the relay above 4.0 V is
inputted to the PCM
continuously for more than
1.0
sec.
• Turns glow plug
relay off.
P0403
EGR
system
• Difference of more than 20%
between EGR lift sensor output
value and EGR command
signal sent from PCM is
inputted continuously to PCM
for more than
20
seconds.
Turns EGR
solenoid valve
(vacuum, vent) off.
P0500
Vehicle
speed
signal
circuit
Vehicle speed signal is less
than
0
km/h
{0
mph} for more
than 5.0 sec. while driving in
following condition:
— Engine speed is over
2800 rpm.
— Neutral switch is off.
• Sets vehicle speed
0
km/h
{0
mph}.
• Operates A/C cut
control.
P0510
ilil
Idle switch
signal
circuit
PCM detects for more than
1.0
second that output voltage
from accelerator position
sensor is below 1.0 V with idle
switch off.
P0606
1
PCM
internal
circuit
PCM does not read DTC from
output devices.
P1110
IAT No.2
signal circuit
Input voltage from IAT No.2
sensor is below 0.142 V or
above 4.915 V when continued
for 0.5 sec.
• Fixes intake air
temperature No.2 at
40°C (1.49 V)
P1182
FSO
solenoid
signal circuit
PCM 2D terminal voltage
stays under the preset voltage
for more than
2.0
sec. after
turning engine switch off.
• Turns spill valve
relay off.
P1189
in
NE signal
circuit
• PCM cannot detect NE signal
though engine is rotating
P1196
Jin
Engine
switch
signal circuit
Input signal from starter to
PCM continues for more than
10
sec. while engine speed is
over
1200
rpm.
Turns starter signal
off.
P1298
IDM
internal
circuit
Command signal is output
from PCM to IDM, but
conformation signal is not
output from IDM to PCM.
• Turns spill valve off.
• Turns spill valve
relay off.
F2-11