Durango 2WD V8-5.2L VIN Y (1999)
codes.
Each diagnostic trouble code is diagnosed by following a specific testing procedure. The diagnostic test procedures contain step-by-step
instructions for determining the cause of the trouble codes. It is not necessary to perform all of the tests in this book to diagnose an individual
code.
Always begin by reading the diagnostic trouble codes using the DRB III. The procedure begins with AIRBAG TEST 1A-Identifying Airbag
System Problems. This will direct you to the specific test(s) that must be performed.
Active diagnostic trouble codes for the airbag system are not permanent and will change the moment the reason for the code is corrected. In certain
test procedures, diagnostic trouble codes are used as a diagnostic tool.
Active Codes
The code becomes active as soon as the malfunction is detected and stored after one minute of occurrence or key-OFF, whichever occurs first. An
active trouble code indicates an on-going malfunction. This means that the defect is currently there every time the airbag control module checks
that circuit/function. It is impossible to erase an active code; active codes automatically erase by themselves when the reason for the code has been
corrected.
With the exception of the warning lamp trouble codes or malfunctions, when a malfunction is detected, the airbag lamp remains lit for a minimum
for 12 seconds or as long as the malfunction is present.
Stored Codes
Airbag codes are automatically stored in the ACM's memory after one minute of occurrence or when the ignition is turned OFF. The exception is
the "Loss of Ignition Run Only" code which is an active code only.
A "stored" code indicates there was an active code present at some time. However, the code currently may not be present as an active code,
although another active code could be.
When a trouble code occurs, the airbag warning lamp illuminates for 12 seconds minimum (even if the problem existed for less than 12 seconds).
The code is stored, along with the time in minutes it was active, and the number of times the ignition has been cycled since the problem was last
detected.
The minimum time shown for any code will be one minute, even if the code was actually present for less than one minute. Thus, the time shown
for a code that was present for two minutes 13 seconds, for example, would be three minutes.
If the malfunction is detected a diagnostic trouble code is stored and will remain stored as long as the malfunction exists. When and if the
malfunction ceases to exist, an ignition cycle count will be initiated for that code. If the ignition cycle count reaches 100 without a reoccurrence of
the same malfunction, the diagnostic trouble code is erased and that ignition cycle counter is reset to zero. If the malfunction reoccurs before the
count reaches 100, then the ignition cycle counter will be reset and the diagnostic trouble code will continue to be a stored code.
If a malfunction is not active while performing a diagnostic test procedure, the active code diagnostic test will not locate the source of the problem.
In this case, the stored code can indicate an area to inspect.
If no obvious problems are found, erase stored codes, and with the ignition "on" wiggle the wire harness and connectors, rotate the steering wheel
from stop to stop. Recheck for codes periodically as you work through the system. This procedure may uncover a malfunction that is difficult to
locate.
Airbag Diagnostic Trouble Codes
The airbag control module may report any of the following diagnostic trouble codes.
For the following codes, replace the Airbag Control Module (ACM) even if set intermittently:
-
ACM Accelerometer
-
Internal Diagnostic 1
-
Internal Diagnostic 2
For the following codes, replace the Airbag Control Module (ACM):
-
ACM Output Driver
-
ACM Stored Energy Logic
-
ACM Stored Energy Driver
-
ACM Stored Energy Passenger
-
Internal Diagnostic 3
-
Internal Diagnostic 4
-
Safing Sensor Shorted
-
Warning Lamp Driver Error
For these codes, refer to the appropriate diagnostic procedure:
