AutoXray EX-SCAN 5000, User Manual

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fuel and the parameter should indicate OFF.
Fuel Cutoff DR (On / Off)
If the ECM has detected that either the engine speed is too high or
vehicle speed exceeds original tire speed rating, this parameter should
read ON indicating that the ECM has cut off fuel to bring operating
conditions down to a more reasonable level. During normal operating
conditions, this item should indicate OFF.
Fuel Pump Sens (Volts) Range: 0 to 25 Volts
Fuel pump sensor. Displayed in volts. The reading is calculated by the
ECM. It should be about the same as battery voltage for a running engine.
Hi Altitude Air (Yes / No)
If barometric indicates that the vehicle is operating at high altitudes (as
determined by the ECM) the ECM has detected and will compensate for
this condition, and the screen should read YES. Otherwise, the screen
should indicate NO.
High Gear (Engaged / Disengaged)
If the ECM is commanding either third gear or fourth gear (depends on
engine package), the screen should show ENGAGED. Otherwise, the
screen should show DISENGAGED.
History T Codes (Counts) Range: 0 to 255 Counts
The number of history codes stored in the ECM.
Idle Air Coil A or B
An indication of which coil is being controlled by the idle air control motor
during idle.
Idle Air Mtr Pos (Steps) Range: 0 to 255 Steps
Idle air motor position. The idle air control is a throttle bypass that meters air
during the idling of fuel injected engines. The lower the number, the lower
the air flow. As loads are applied to the engine, the reading will increase.
IAC Learned (Yes / No)
This parameter indicates whether or not the ECM has learned the
minimum idle air control position. This should always indicate YES except
after an Idle Air Control system reset when the indication should be NO.
IAC Motor Reset (Yes / No)
An indication of whether the Idle Air Control motor has been returned to a
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