Mazda MX-6 1998, Workshop Manual, Page: 748 / 1282

TROUBLESHOOTING [GF4A-EL]
DTC No. Diagnosed Circuit Condition MIL DC*1
OBD Monitor*2
O/D OFF
indicator
light
P0125
Engine coolant
temperature sensor
Insufficient coolant
temperature to enter a
closed loop fuel
control
tr 0 1 -0 1 B ENGINE ON-BOARD DIAGNOSIS [KL] N/A
P0131
Heated oxygen
sensor (Front RH)
Circuit low voltage t r 01-01B ENGINE ON-BOARD DIAGNOSIS [KL] N/A
P0133
Heated oxygen
sensor (Front RH)
Circuit low response
tr 01-01B ENGINE ON-BOARD DIAGNOSIS [KL] N/A
P0135
Heated oxygen
sensor heater (Front
RH)
Circuit malfunction t r 0 1 -0 1 B ENGINE ON-BOARD DIAGNOSIS [KL] N/A
P0136
Heated oxygen
sensor (Middle)
Circuit malfunction t r 0 1 -0 1 B ENGINE ON-BOARD DIAGNOSIS [KL] N/A
P0141
Downstream heated
oxygen sensor heater
Circuit malfunction t r 0 1 -0 1 B ENGINE ON-BOARD DIAGNOSIS [KL]
N/A
P0151
Heated oxygen
sensor (Front LH)
Circuit low voltage
t r 0 1 -0 1 B ENGINE ON-BOARD DIAGNOSIS [KL] N/A
P0153
Heated oxygen
sensor (Front LH)
Circuit low response
j r 0 1 -0 1 B ENGINE ON-BOARD DIAGNOSIS [KL] N/A
P0155
Heated oxygen
sensor (Front LH)
Circuit malfunction o r 0 1 -0 1 B ENGINE ON-BOARD DIAGNOSIS [KL] N/A
P0156
Heated oxygen
sensor (Rear)
Circuit malfunction c r 0 1 -0 1 B ENGINE ON-BOARD DIAGNOSIS [KL] N/A
P0161
Heated oxygen
sensor heater (Rear)
Circuit malfunction t r 0 1 -0 1 B ENGINE ON-BOARD DIAGNOSIS [KL] N/A
P0171
Adaptive fuel control
system (RH)
System too lean
r r 0 1 -0 1 B ENGINE ON-BOARD DIAGNOSIS [KL] N/A
P0172
Adaptive fuel control
system (RH)
System too rich
e r 0 1 -0 1 B ENGINE ON-BOARD DIAGNOSIS [KL] N/A
P0174
Adaptive fuel control
system (LH)
System too lean
t r 0 1 -0 1 B ENGINE ON-BOARD DIAGNOSIS [KL] N/A
P0175
Adaptive fuel control
system (LH)
System too rich
t r 0 1 -0 1 B ENGINE ON-BOARD DIAGNOSIS [KL] N/A
P0230
Fuel pump Circuit malfunction
t r 01-01B ENGINE ON-BOARD DIAGNOSIS [KL] N/A
P0300 Ignition
Random misfire
detected
t r 0 1 -0 1 B ENGINE ON-BOARD DIAGNOSIS [KL]
N/A
P0301 Ignition
Cylinder No. 1 misfire
detected
t r 0 1 -0 1 B ENGINE ON-BOARD DIAGNOSIS [KL] N/A
P0302 Ignition
Cylinder No.2 misfire
detected
t r 0 1 -0 1 B ENGINE ON-BOARD DIAGNOSIS [KL] N/A
P0303
Ignition
Cylinder No.3 misfire
detected
t r 0 1 -0 1 B ENGINE ON-BOARD DIAGNOSIS [KL]
N/A
P0304 Ignition
Cylinder No.4 misfire
detected
t r 0 1 -0 1 B ENGINE ON-BOARD DIAGNOSIS [KL] N/A
P0305 Ignition
Cylinder No.5 misfire
detected
t r 0 1 -0 1 B ENGINE ON-BOARD DIAGNOSIS [KL] N/A
P0306
Ignition
Cylinder No.6 misfire
detected
t r 0 1 -0 1 B ENGINE ON-BOARD DIAGNOSIS [KL] N/A
P0320 Ignition engine speed
Input circuit
malfunction
t r 0 1 -0 1 B ENGINE ON-BOARD DIAGNOSIS [KL] FLASH
P0325
Knock sensor Circuit malfunction t r 0 1 -0 1 B ENGINE ON-BOARD DIAGNOSIS [KL] N/A
P0340
Camshaft position
sensor
Circuit malfunction
(CID)
c r 0 1 -0 1 B ENGINE ON-BOARD DIAGNOSIS [KL] N/A
P0400
Exhaust gas
recirculation (EGR)
Flow malfunction tr
0 1 -0 1 B ENGINE ON-BOARD DIAGNOSIS [KL] N/A
P0420 Catalyst system
Efficiency below
threshold
t r 0 1 -0 1 B ENGINE ON-BOARD DIAGNOSIS [KL] N/A
0 5 -0 1 B -2