Mazda RX-8 Manual page 702

DTC P0223
DTC P0223 TP sensor No.2 circuit high input
DETECTION
CONDITION
POSSIBLE
CAUSE
The PCM monitors the input voltage from the TP sensor No.2 when the engine is
•
running. If the input voltage is more than 4.8 V , the PCM determines that the TP
sensor No.2 circuit input voltage is high.
Diagnostic support note
This is a continuous monitor (CCM).
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The MIL illuminates if the PCM detects the above malfunction condition in the
•
first drive cycle.
PENDING CODE is available if the PCM detects the above malfunction
•
condition.
FREEZE FRAME DATA is available.
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The DTC is stored in the PCM memory.
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TP sensor No.2 malfunction
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Connector or terminal malfunction
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Short to power supply in wiring harness between throttle body terminal D and
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PCM terminal 1M
Open circuit in wiring harness between throttle body terminal C and PCM
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terminal 2F
PCM malfunction
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(w) Engine Diagnostics & Control
Page 139