Mazda RX-8 Workshop Manual page 638

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2011 - RX-8 - Engine
DTC P2259 [13B-MSP]
DTC P2259 AIR solenoid valve control circuit low
DETECTION
CONDITION
POSSIBLE
CAUSE
The PCM monitors the AIR solenoid valve control voltage when the AIR pump is not operating. If
the control voltage is less than 3.5 V, the PCM determines that the AIR solenoid valve control
circuit voltage is low.
Diagnostic support note
This is a continuous monitor (AIR system).
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.
AIR solenoid valve connector or terminals malfunction
Short to ground or open circuit in AIR solenoid valve power supply circuit
Short to ground in wiring harness between main relay terminal C and AIR
solenoid valve terminal A
AIR solenoid valve related fuse malfunction
Open circuit in wiring harness between main relay terminal C and AIR solenoid
valve terminal A
Short to ground in wiring harness between AIR solenoid valve terminal B and PCM terminal 2G
AIR solenoid valve malfunction
PCM connector or terminals malfunction
Open circuit in wiring harness between AIR solenoid valve terminal B and PCM terminal 2G
PCM malfunction