DTC P0223-00: TP Sensor No. 2 Circuit High Input: Notes

DTC DETECTION DESCRIPTION

DTC P0223:00	TP sensor No. 2 circuit high input
DETECTION CONDITION	If the PCM detects that the TP sensor No. 2 voltage at the PCM terminal 1BU is above 4.9 V, the PCM determines that the TP sensor No. 2 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/Snapshot data is available. DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION	Restricts the upper limit of the engine speed.
POSSIBLE CAUSE	Throttle body connector or terminals malfunction PCM connector or terminals malfunction TP sensor No. 2 malfunction Short to power supply in wiring harness between throttle body terminal C and PCM terminal 1BU Open circuit in wiring harness between throttle body terminal D and PCM terminal 1BQ PCM malfunction

Fig 1: Throttle Body Wiring Harness-Side Connector Terminals

Courtesy of MAZDA MOTORS CORP.

CAUTION:

• Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting.

PARTS DESCRIPTION

Item	Definition	Unit	Condition/Specification
TP2	Throttle valve position No. 2	%	Accelerator pedal released: Approx. 22% Accelerator pedal fully depressed: Approx. 92%
	TP sensor No. 2 voltage	V	Accelerator pedal released: Approx. 3.92 V Accelerator pedal fully depressed: Approx. 0.41 V