DTC P2101-00: Throttle Valve Actuator Circuit Range/Performance Problem: Notes

DTC P2101:00 DETECTION CONDITION AND POSSIBLE CAUSE

DTC P2101:00	Throttle valve actuator circuit range/performance problem
DETECTION CONDITION	If any of the following conditions continue for a specified period of time or more the PCM detects a malfunction in the throttle valve actuator. The voltage of the motor power supply is 4 V or less while the motor relay is on. There is a system error in the electrical throttle control system of the PCM. 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	Stops the idle air control. Stops the drive-by-wire control and sets to a throttle valve opening angle necessary for the minimum driveability. Limits the vehicle speed to less than 20 km/h {12 mph}.
POSSIBLE CAUSE	PCM connector or terminals malfunction Main relay malfunction Short to ground or open circuit in main relay power supply circuit: Short to ground in wiring harness between the following terminals: EGI MAIN 40 A fuse-Main relay terminal D EGI MAIN 40 A fuse-Main relay terminal A EGI MAIN 40 A fuse malfunction Open circuit in wiring harness between the following terminals: Battery positive terminal-Main relay terminal D Battery positive terminal-Main relay terminal A Short to ground or open circuit in main relay control circuit: Short to ground in wiring harness between the following terminals: ENG INJ 25 A fuse-PCM terminal 1B ENG INJ 25 A fuse-PCM terminal 1A Main relay terminal E-PCM terminal 1Q ENG INJ 25 A fuse malfunction Open circuit in wiring harness between the following terminals: Main relay terminal C-PCM terminal 1B Main relay terminal C-PCM terminal 1A Main relay terminal E-PCM terminal 1Q TP sensor No. 1 and/or related circuit malfunction TP sensor No. 2 and/or related circuit malfunction PCM malfunction
Courtesy of MAZDA MOTORS CORP.