DTC P2101:00: Notes

DTC P2101:00 (L3 WITH TC) DETECTION CONDITION & POSSIBLE CAUSES

DTC P2101:00	Throttle valve actuator circuit range/performance problem
DETECTION CONDITION	The PCM turns the main relay on but the input voltage is 4 V or less , the PCM determines that the main relay control circuit voltage is low. The PCM monitors the input voltage from the main relay. The PCM turns the main relay off but the input voltage is 4 V or more , the PCM determines that the main relay control circuit voltage is high. Diagnostic support note This is a continuous monitor (CCM). The MIL 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.
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: Battery positive terminal-Main relay terminal D Battery positive terminal-Main relay terminal A ENG MAIN 40 A fuse and/or ENG+B 10 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: Main relay terminal C-PCM terminal 1BE Main relay terminal C-PCM terminal 1BF Main relay terminal B-PCM terminal 1AT ENG BAR2 20 A fuse and/or ETV 15 A fuse malfunction Open circuit in wiring harness between the following terminals: Main relay terminal C-PCM terminal 1BE Main relay terminal C-PCM terminal 1BF Main relay terminal B-PCM terminal 1AT TP sensor No. 1 and related circuit malfunction TP sensor No. 2 and related circuit malfunction PCM malfunction
Courtesy of MAZDA MOTORS CORP.

DTC P2101:00

Throttle valve actuator circuit range/performance problem

DETECTION CONDITION

The PCM turns the main relay on but the input voltage is 4 V or less , the PCM determines that the main relay control circuit voltage is low.
The PCM monitors the input voltage from the main relay. The PCM turns the main relay off but the input voltage is 4 V or more , the PCM determines that the main relay control circuit voltage is high.

Diagnostic support note

This is a continuous monitor (CCM).
The MIL 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.

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:
  - Battery positive terminal-Main relay terminal D
  - Battery positive terminal-Main relay terminal A
- ENG MAIN 40 A fuse and/or ENG+B 10 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:
  - Main relay terminal C-PCM terminal 1BE
  - Main relay terminal C-PCM terminal 1BF
  - Main relay terminal B-PCM terminal 1AT
- ENG BAR2 20 A fuse and/or ETV 15 A fuse malfunction
- Open circuit in wiring harness between the following terminals:
  - Main relay terminal C-PCM terminal 1BE
  - Main relay terminal C-PCM terminal 1BF
  - Main relay terminal B-PCM terminal 1AT
TP sensor No. 1 and related circuit malfunction
TP sensor No. 2 and related circuit malfunction
PCM malfunction

Courtesy of MAZDA MOTORS CORP.