Dtc P0030 [13B-Msp] - Mazda RX-8 Workshop Manual

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2011 - RX-8 - Engine

DTC P0030 [13B-MSP]

DTC P0030 A/F sensor heater control circuit problem
DETECTION
CONDITION
POSSIBLE
CAUSE
Diagnostic procedure
STEP
VERIFY FREEZE FRAME DATA (MODE 12) AND
1
DIAGNOSTIC MONITORING TEST RESULTS
HAVE BEEN RECORDED
Have the FREEZE FRAME DATA
The PCM monitors the A/F sensor impedance when under the A/F sensor
heater control for 190 s. If the impedance is more than 44 ohms while
PCM turns A/F sensor heater on, the PCM determines that there is a A/F
sensor heater control circuit problem.
Diagnostic support note
This is a continuous monitor (A/F sensor heater, HO2S heater).
The MIL illuminates if the PCM detects the above malfunction condition in
two consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction
condition during the first drive cycle.
FREEZE FRAME DATA (Mode 2/Mode 12) is available.
The DTC is stored in the PCM memory.
A/F sensor connector or terminals malfunction
A/F sensor heater malfunction
PCM connector or terminals malfunction
PCM malfunction
INSPECTION
YesGo to the next step.
No Record the FREEZE FRAME DATA (Mode
ACTION