Diagnostic Test

WARNING: This page is about a different car, the 2010 Dodge Charger and 2010 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.

UNDERCHARGED BATTERY
NOTE: The battery must be fully charged and in good condition. An undercharged battery may produce invalid test results.
1. Test the battery in accordance with the Service Information.
  Were any problems found?
  
  Yes
  - Charge or replace the battery as necessary and retest.
  - Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
  No
  - Go to step 2
SYSTEM DTCS PRESENT
NOTE: If the battery was low, make sure the battery is properly charged and attempt to start the vehicle. Crank the engine for 15 seconds, 3 consecutive times. This will allow any DTCs to set that may have been erased due to a dead battery.
1. With the scan tool, select System DTCs to read DTCs in all modules. If any DTCs are present, perform the appropriate diagnostic procedure before continuing with this test. If a no response condition is detected in any module, refer to the appropriate diagnostic procedure.
  Were any problems found?
  
  Yes
  - Perform the appropriate diagnostic procedure and repair as necessary. If any pending DTCs are detected, perform the diagnostic procedure as if the DTC is active.
  - Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
  No
  - Go to step 3
PCM POWER OR GROUND CIRCUIT OPEN OR HIGH RESISTANCE
1. Turn the ignition off.
2. Disconnect the PCM harness connector(s).
3. Using a 12 volt test light, check all PCM power and ground circuits.
  NOTE: The test light must be illuminated and bright. Compare the brightness to that of a direct connection to the battery.
  
  Is the test light illuminated and bright when checking each of the PCM power and ground circuits?
  
  Yes
  - Repair the PCM power or ground circuit for an open circuit or high resistance.
  - Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
  No
  - Go to step 4
OPEN FUSE(S)
1. Inspect all of the fuses in the PDC and TIPM. If any open fuses are found, check the related circuit(s) for a short to ground or high resistance.
  Were any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
  No
  - Go to step 5
CHECKING THE FUEL DELIVERY SYSTEM
NOTE: Verify that the fuel tank is not empty before continuing.
1. Perform the diagnostic procedure for CHECKING THE FUEL DELIVERY SYSTEM. See CHECKING THE FUEL DELIVERY SYSTEM .
  Were any problems found?
  
  Yes
  - Repair as necessary in accordance with the Service Information.
  - Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
  No
  - Go to step 6
FUEL CONTAMINATION
1. Check the fuel system for contamination in accordance with the Service Information.
  Was any evidence of fuel contamination found?
  
  Yes
  - Clean and repair the fuel system as necessary in accordance with the Service Information.
  - Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
  No
  - Go to step 7
CHECKING THE IGNITION COIL OPERATION
1. Perform the diagnostic procedure for IGN. COIL OPERATION. See CHECKING THE IGNITION COIL OPERATION - 2.7/3.5 , or CHECKING THE IGNITION COIL OPERATION - 5.7/SRT8 .
  Were any problems found?
  
  Yes
  - Repair as necessary in accordance with the Service Information.
  - Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
  No
  - Go to step 8
CHECKING THE ENGINE MECHANICAL SYSTEM
1. Perform the diagnostic procedure for CHECKING THE ENGINE MECHANICAL SYSTEM. See CHECKING THE ENGINE MECHANICAL SYSTEM .
  Were any problems found?
  
  Yes
  - Repair as necessary in accordance with the Service Information.
  - Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
  No
  - Test complete. Refer to any Technical Service Bulletins that may apply.