Chrysler 2005 Crossfire SRT6 Service Manual page 707

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*NO RESPONSE FROM ALL MODULES (CONTINUED)
SENSOR GROUND CIRCUIT SHORTED TO VOLTAGE
SENSOR GROUND CIRCUIT OPEN
FUEL TANK PRESSURE SENSOR
POWERTRAIN CONTROL MODULE
For a complete Data Link Connector Circuit Diagram, (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MOD-
ULES - SCHEMATICS AND DIAGRAMS).
Diagnostic Test
1.
CHECK PCM C4 HARNESS CONNECTOR CONNECTION
Turn the ignition off.
Disconnect the PCM C4 harness connector.
Note: Check connector — Clean/repair as necessary.
Reconnect the PCM C4 harness connector.
Turn the ignition on.
Attempt to communicate with any module with the DRB III .
Does the DRB III communicate with the module selected?
Yes >> The repair is complete.
Perform POWERTRAIN VERIFICATION TEST - VER 2.
No >> Go to 2
2.
DISCONNECT THE FUEL TANK PRESSURE SENSOR
Turn the ignition off.
Disconnect the Fuel Tank Pressure Sensor harness connector.
Attempt to communicate with any module with the DRB III .
Does the DRB III communicate with the module selected?
Yes >> Replace the Fuel Tank Pressure Sensor. (Refer to 14 -
FUEL SYSTEM/FUEL DELIVERY/FUEL LEVEL SENDING
UNIT / SENSOR - REMOVAL).
No >> Go to 3
ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS 8E - 5
POSSIBLE CAUSES