2008T Troubleshooting Guide
P/N 490292 Rev. A
FIL- 2.1.0 NO AIR SEEN BUT FILACT = 1 / ISOLATE SUPPLY VOLTAGES
a) Call debug screen 1, TWO (2) voltage checks:
Check #1: 5V Est. (right column): Between 4.7 - 5.3?
Check #2: 12V Est. (right column): Between 11.7 - 12.3?
b) Are BOTH in range AND stable i.e. not changing more than 0.1 per minute?
Yes BOTH 5V and 12V within range AND stable! See procedure number FIL- 2.3.0 (page 464).
No One or both NOT in range OR unstable! See parts A) through C) below:
A) To avoid pulling cables loose, GENTLY open the card cage.
B) Behind the card cage, ENSURE the 24V POWER harness has remained plugged in.
C) Proceed to
page 646, procedure number P- E.0.0.
FIL- 2.3.0 VOLTAGES IN RANGE / ISOLATE AIR SENSOR CIRCUIT
a) FIGURE BELOW, inside the distribution board, unplug the female Air Sensor’s connector i.e. 4
th
Connector, 5
th
position from the left. If present, DO NOT unplug the CBE board, under the connector!
b) Using a flashlight, ENSURE no corrosion or damaged pins inside the distribution board!
c)
Per the Figure next page, place a resistor plug, from the FOUR-RESISTOR SET into the Air
Sensor’s distribution board position! If CBE equipped, using a flashlight, ENSURE the
resistor covers ALL CBE board pins, especially the top pin!
Parts d and e next page
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