Mazda MX-6 1998, Workshop Manual

Page: 680 / 1282

TROUBLESHOOTING [LA4A-EL]
DTC No. Diagnosed Circuit
Condition MIL DC*1 OBD Monitor*2
O/D OFF
indicator
light
P1130
Heated oxygen
sensor (Front)
Lack of H 02S 11
switch adaptive fuel at
limit
tr 0 1 -0 1 A ENGINE ON-BOARD DIAGNOSIS [FS] N/A
P1131
Heated oxygen
sensor (Front)
Lack of H 02S 11
switch sensor
indicates lean
tr
0 1 -0 1 A ENGINE ON-BOARD DIAGNOSIS [FS] N/A
P1132
Heated oxygen
sensor (Front)
Lack of H 02S 11
switch sensor
indicates rich
tr
0 1 -0 1 A ENGINE ON-BOARD DIAGNOSIS [FS] N/A
P1137
Heated oxygen
sensor (Rear)
Lack of H 02S 12
switch sensor
indicates lean e r 0 1 -01A ENGINE ON-BOARD DIAGNOSIS [FS] N/A
P1138
Heated oxygen
sensor (Rear)
Lack of H 02S 12
switch sensor
indicates rich
c r 0 1 -0 1 A ENGINE ON-BOARD DIAGNOSIS [FS]
N/A
P1250
Fuel pressure
regulator control
solenoid valve
Circuit malfunction
ít
0 1 -0 1 A ENGINE ON-BOARD DIAGNOSIS [FS]
N/A
P1409
EGR valve (Stepper
motor)
Malfunction c r 0 1 -0 1 A ENGINE ON-BOARD DIAGNOSIS [FS] N/A
P1450
Evaporative emission
control system
Unable to bleed up
fuel tank vacuum
tr
0 1 -0 1 A ENGINE ON-BOARD DIAGNOSIS [FS] N/A
P1451
Evaporative emission
control system
Vent control valve
malfunction
(Open/short)
c r 0 1 -0 1 A ENGINE ON-BOARD DIAGNOSIS [FS]
N/A
P1452
Evaporative emission
control system
Unable to bleed up
vacuum in tank
tr 0 1 -0 1 A ENGINE ON-BOARD DIAGNOSIS [FS] N/A
P1460
Wide open throttle air
conditioning cutoff
Circuit malfunction c r 0 1 -0 1 A ENGINE ON-BOARD DIAGNOSIS [FS] N/A
P1464 Air conditioner (A/C)
Demand out of
self-test range
c r 0 1 -0 1 A ENGINE ON-BOARD DIAGNOSIS [FS] N/A
P1474 Fan control system
Cooling fan control
primary circuit
malfunction
tr 0 1 -01A ENGINE ON-BOARD DIAGNOSIS [FS] N/A
P1479 Fan control system
Condenser fan control
primary circuit
malfunction
c r 0 1 -0 1 A ENGINE ON-BOARD DIAGNOSIS [FS] N/A
P1487
EGR boost solenoid
valve
Circuit malfunction c r 0 1 -0 1 A ENGINE ON-BOARD DIAGNOSIS [FS] N/A
P1501
Vehicle speed sensor
Input signal out of
self-test range
tr 0 1 -0 1 A ENGINE ON-BOARD DIAGNOSIS [FS] N/A
P1504
Idle air control (IAC)
system
Circuit intermittent D- 0 1 -0 1 A ENGINE ON-BOARD DIAGNOSIS [FS] N/A
P1506
Idle air control (IAC)
system
Overspeed error
tr 0 1 -0 1 A ENGINE ON-BOARD DIAGNOSIS [FS]
N/A
P1507
Idle air control (IAC)
system
Underspeed error
c r 0 1 -0 1 A ENGINE ON-BOARD DIAGNOSIS [FS] N/A
P1602
Immobilizer system
Communication error
(Immobilizer u n it-
ECM/PCM)
tr
0 1 -0 1 A ENGINE ON-BOARD DIAGNOSIS [FS] N/A
P1603
Immobilizer system No ID in ECM/PCM
c
r
0 1 -0 1 A ENGINE ON-BOARD DIAGNOSIS [FS] N/A
P1604 Immobilizer system
No codeword in
ECM/PCM
c r 0 1 -0 1 A ENGINE ON-BOARD DIAGNOSIS [FS]
N/A
P1621
Immobilizer system Codeword unmuch
tr 0 1 -0 1 A ENGINE ON-BOARD DIAGNOSIS [FS]
N/A
P1622
Immobilizer system
ID unmuch tr 01-01A ENGINE ON-BOARD DIAGNOSIS [FS]
N/A
P1623 Immobilizer system
Cord word/ID
write/read error
tr 0 1 -0 1 A ENGINE ON-BOARD DIAGNOSIS [FS]
N/A
0 5 -0 1 A -5