AEM 30-6821 Series 2 Plug & Play EMS - Manual (Page 11)

Page 11 of 21
Troubleshooting Operational Faults
Should an operational fault be detected, please read and follow the following suggestions for each
system.
APP

Ensure the accelerator pedal position sensor is in good condition and plugged in.

Double-check that APP sensor is wired per OEM specifications.

Check all wiring for shorts or intermittent connections.
TPSA/TPSB

Ensure the throttle position sensor is in good condition and plugged in.

Double-check that throttle body/TPS sensor is wired per OEM specifications.

Check all wiring for shorts or intermittent connections.
Target

Ensure throttle body bore is clean and free from obstruction.

Ensure vehicle battery is in good condition and properly charged.
System Voltage

Ensure vehicle battery is in good condition and properly charged.

Check all wiring for shorts or intermittent connections.
Motor Driver

Double-check that throttle body/TPS sensor is wired per OEM specifications.

Check throttle body wiring for shorts or intermittent connections.

Ensure EMS has not been installed in an area of extreme heat ( > 120°C)
WDR

Contact AEM EMS Technical Support
EEPROM

Perform ETC system calibration

Restore ETC system factory calibration

Contact AEM EMS Technical Support