Mazda MX-6 1998, Workshop Manual

Page: 678 / 1282

TROUBLESHOOTING [LA4A-EL]
DTC No. Diagnosed Circuit
Condition MIL DC*1
OBD Monitor*2
O/D OFF
indicator
light
P0302 Ignition
Cylinder No.2 misfire
detected
sr
0 1 -0 1 A ENGINE ON-BOARD DIAGNOSIS [FS] N/A
P0303
Ignition
Cylinder No.3 misfire
detected
s t
0 1 -0 1 A ENGINE ON-BOARD DIAGNOSIS [FS] N/A
P0304 Ignition
Cylinder No.4 misfire
detected
c r 0 1 -0 1 A ENGINE ON-BOARD DIAGNOSIS [FS] N/A
P0320 Ignition engine speed
Input circuit
malfunction
s t
01—01A ENGINE ON-BOARD DIAGNOSIS [FS] N/A
P0325 Knock sensor Circuit malfunction
sr
0 1 -0 1 A ENGINE ON-BOARD DIAGNOSIS [FS] N/A
P0340
Camshaft position
sensor
Circuit malfunction
(CID)
c r 0 1 -0 1 A ENGINE ON-BOARD DIAGNOSIS [FS] N/A
P0400
Exhaust gas
recalculation (EGR)
Flow malfunction
tr
0 1 -0 1 A ENGINE ON-BOARD DIAGNOSIS [FS] N/A
P0420 Catalyst system
Efficiency below
threshold
tr
0 1 -0 1 A ENGINE ON-BOARD DIAGNOSIS [FS] N/A
P0421 Catalyst system
Efficiency below
threshold (Light off
catalyst)
tr
0 1 -0 1 A ENGINE ON-BOARD DIAGNOSIS [FS] N/A
P0442
Evaporative emission
control system
Leak detected (Small
leak)
tr
0 1 -0 1 A ENGINE ON-BOARD DIAGNOSIS [FS]
N/A
P0443
Evaporative emission
control system
Purge control valve
circuit malfunction
s t
0 1 -01A ENGINE ON-BOARD DIAGNOSIS [FS] N/A
P0446
Evaporative emission
control system
Vent control
malfunction
s t
0 1 -0 1 A ENGINE ON-BOARD DIAGNOSIS [FS]
N/A
P0452
Evaporative emission
control system
Pressure sensor low
input
tr
0 1 -0 1 A ENGINE ON-BOARD DIAGNOSIS [FS]
N/A
P0453
Evaporative emission
control system
Pressure sensor high
input
s t
0 1 -01A ENGINE ON-BOARD DIAGNOSIS [FS] N/A
P0455
Evaporative emission
control system
Control leak detected
(Gross leak)
ST
0 1 -0 1 A ENGINE ON-BOARD DIAGNOSIS [FS] N/A
P0460
Fuel gauge sender
unit
Circuit malfunction
(Open/short,
functional)
tr
0 1 -0 1 A ENGINE ON-BOARD DIAGNOSIS [FS]
N/A
P0500 Vehicle speed sensor
Sensor malfunction
s t
0 1 -0 1 A ENGINE ON-BOARD DIAGNOSIS [FS] N/A
P0505 Idle air control system
System malfunction
sr
0 1 -0 1 A ENGINE ON-BOARD DIAGNOSIS [FS] N/A
P0603 PCM
Keep alive memory
(KAM) test error
s t
0 1 -0 1 A ENGINE ON-BOARD DIAGNOSIS [FS]
N/A
P0605 PCM
Read only memory
(ROM) test error
s t
01-01A ENGINE ON-BOARD DIAGNOSIS [FS] N/A
P0704 Clutch switch
Input circuit
malfunction
r r 0 1 -0 1 A ENGINE ON-BOARD DIAGNOSIS [FS] N/A
P0707
TR switch
TR out of range
Shorted circuit or
sensor
ON 2 CCM OFF
P0708
TR circuit high or
open
ON
2 CCM OFF
0 5 -0 1 A -3