PT Cruiser L4-2.4L Turbo VIN 8 (2005)
Some airbag diagnostic tests use special tools, 8310 and 8443 airbag load tools, for testing squib circuits. The load tools contain fixed resistive loads,
jumpers and adapters. The fixed loads are connected to cables and mounted in a storage case. The cables can be directly connected to some airbag
system connectors. Jumpers are used to convert the load tool cable connectors to the other airbag system connectors. The adapters are connected to the
module harness connector to open shorting clips and protect the connector terminal during testing. When using the load tool follow all of the safety
procedures in the service information for disconnecting airbag system components. Inspect the wiring, connector and terminals for damage or
misalignment. Substitute the airbag load tool in place of a Driver or Passenger Airbag, seat airbag, clockspring, or seat belt tensioner (use a load tool
jumper if needed). Then follow all of the safety procedures in the service information for connecting airbag system components. Read the module active
DTC s. If the module reports NO ACTIVE DTC s the defective components have removed from the system and should be replaced. If the DTC is still
active, continue this process until all components in the circuit have been tested. Then disconnect the module connector and connect the matching
adapter to the module connector. With all airbags disconnected and the adapter installed the squib wiring can be tested for open and shorted conditions.
DIAGNOSTIC TROUBLE CODES
Airbag diagnostic trouble codes consist of active and stored codes. If more than one code exists, diagnostic priority should be given to the active 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. 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 within
this manual, diagnostic trouble codes are used as a diagnostic tool.
ACTIVE CODES
The code becomes active as soon as the malfunction is detected or key-off, whichever occurs first. An active trouble code indicates an on-going
malfunction or has occurred in that ignition cycle. This means that the malfunction is currently there every time the 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
or not present in the subsequent ignition cycle. With the exception of the warning lamp trouble codes or malfunctions, when a malfunction is detected,
the airbag lamp remains lit for a minimum of 12 seconds or as long as the malfunction is present.
STORED CODES
Airbag codes are automatically stored in the ACM's memory as soon as the malfunction is detected. 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. 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 a 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, the active code diagnostic test will not locate the source or the condition. In this case,
the stored code can indicate an area to inspect. The following procedure may uncover a malfunction that is difficult to locate:
WARNING: TO AVOID PERSONAL INJURY OR DEATH, MAINTAIN A SAFE DISTANCE FROM ALL AIRBAGS WHILE
PERFORMING THE FOLLOWING INSPECTION:
If no obvious problems are found:
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Erase the stored codes
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Place the ignition in the Run position
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Wiggle the wire harness and connectors
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Rotate the steering wheel from stop to stop
Audio System
The audio system on the PT consists of a radio that communicates over the PCI Bus. Each radio system comes equipped with a standard premium 6
speaker system. The speakers are located in the instrument panel, the front doors and the rear "D" pillars. The instrument panel speakers are a tweeter
type speaker for high frequency. The front door speakers are a woofer/midrange type speaker. The rear "D" pillar speakers are a full range type speaker.
If one of the speaker circuits experiences a short, the other speakers on that channel will also shut down until the circuit is repaired. The radio will also
set a trouble code, which the DRBIII(R) can display.
NAVIGATION RADIO
The optional navigation radio system receives GPS signals from up to eight satellites to display the position and direction of the vehicle. Map
information is supplied through a DVD-ROM. An electronic gyrosensor and the vehicle's speed sensor enable the system to display the present vehicle
position even in locations where GPS signals may be blocked.
When a destination is selected, the navigation system uses information from the map to quickly calculate a route. As the vehicle is driven along the
