Mazda RX-8 Workshop Manual page 437

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2011 - RX-8 - Engine
DTC P2122 [13B-MSP]
DTC P2122 APP sensor No.1 circuit low input
DETECTION
CONDITION
POSSIBLE
CAUSE
The PCM monitors the input voltage from the APP sensor No.1 when the engine is
running. If the input voltage is less than 0.3 V, the PCM determines that the APP
sensor No.1 circuit input voltage is low.
Diagnostic support note
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in the first drive
cycle.
FREEZE FRAME DATA (Mode 2/Mode 12) is available.
The DTC is stored in the PCM memory.
APP sensor connector or terminals malfunction
Short to ground in wiring harness between APP sensor terminal D and PCM terminal
1AL
Short to ground in wiring harness between APP sensor terminal F and PCM terminal
1AO
PCM connector or terminals malfunction
Open circuit in wiring harness between APP sensor terminal D and PCM terminal 1AL
Open circuit in wiring harness between APP sensor terminal F and PCM terminal 1AO
APP sensor No.1 malfunction
PCM malfunction