Lotus 2004 ELISE Service Notes page 175

Lotus Service Notes
Throttle Actuator Control System – Forced Engine Shutdown
Description
If a problem is detected which could result in engine speed runaway, or if sufficient control of engine speed is
lost, the ECU switches off the fuel injectors in order to stop the engine.
Monitor: Continuous
Enable Criteria: Engine running
Disable Criteria: None
Potential failure modes:
# Electronic throttle fault
Note: This code indicates action taken by the ECU, and will always be accompanied by another code which
has caused this action.
Throttle Actuator Control System – Forced Limited Power
Description
If a problem is detected which could result in engine speed control difficulties, the ECU will limit throttle opening
to a maximum of 15%.
Monitor: Continuous
Enable Criteria: Engine running
Disable Criteria: None
Potential failure modes:
# Electronic throttle fault
Note: This code indicates action taken by the ECU, and will always be accompanied by another code which
has caused this action.
Throttle Actuator Control Module Processor
Description
The ECU contains two processors dedicated to the throttle pedal and throttle valve potentiometers.
Monitor: Continuous
Enable Criteria: Engine running
Disable Criteria: None
Potential failure modes:
# ECU internal fault
# Incorrect ECU programming
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Section EMP
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