DTC P0122-00: TP Sensor No. 1 Circuit Low Input: Notes

DTC P0122:00 DETECTION CONDITION AND POSSIBLE CAUSE

DTC P0122:00	TP sensor No. 1 circuit low input
DETECTION CONDITION	If the PCM detects that the TP sensor No. 1 voltage is below 0.2 V, the PCM determines that the TP sensor No. 1 circuit has a malfunction. Diagnostic support note This is a continuous monitor (CCM). The check engine light illuminates if the PCM detects the above malfunction condition during the first drive cycle. FREEZE FRAME DATA (Mode 2)/Snapshot data is available. The DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION	Regulates the upper limit of the APP sensor output.
POSSIBLE CAUSE	Throttle body connector or terminals malfunction Short to ground in wiring harness between the following terminals: Throttle body terminal B-PCM terminal 2AR Throttle body terminal A-PCM terminal 2AK PCM connector or terminals malfunction TP sensor No. 1 signal circuit and ground circuit are shorted to each other Open circuit in wiring harness between throttle body terminal B and PCM terminal 2AR TP sensor No. 1 malfunction PCM malfunction
Courtesy of MAZDA MOTORS CORP.