Mazda RX-8 Manual page 942

DTC P2127
DTC P2127 APP sensor No.2 circuit low input
DETECTION
CONDITION
POSSIBLE
CAUSE
The PCM monitors the input voltage from the APP sensor No.2 when the engine
•
is running. If the input voltage is less than 0.3 V , the PCM determines that the
APP sensor No.2 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.
PENDING CODE is available if the PCM detects the above malfunction
•
condition.
FREEZE FRAME DATA is available.
•
The DTC is stored in the PCM memory.
•
APP sensor No.2 malfunction
•
Connector or terminal malfunction
•
Open circuit in wiring harness between APP sensor terminal A and PCM terminal
•
4X
Short to GND in wiring harness between APP sensor terminal A and PCM
•
terminal 4X
Open circuit in wiring harness between APP sensor terminal C and PCM terminal
•
5C
Short to GND in wiring harness between APP sensor terminal C and PCM
•
terminal 5C
PCM malfunction
•
(w) Engine Diagnostics & Control
Page 379