Dodge 2004 Neon SX2 Diagnostic Manual page 652

STARTING
*ENGINE CRANKS DOES NOT START —
TEST
1 Note: The following list of items must be checked before continuing with
any no start tests.
The battery must be fully charged and in good condition. A low charged battery may
produce invalid test results. If the battery is low, charge the battery and then attempt
to start the vehicle by cranking the engine for 15 seconds, 3 consecutive times.
This will allow any DTC's to set that may have been erased due to a dead battery.
Ensure the Powers and Ground to the PCM are ok.
Make sure the PCM communicates with the DRBIII and that there are no DTC's
stored in the PCM memory. If the PCM reports a No Response condition, refer to the
Communication category for the proper tests.
Read the PCM DTC's with the DRBIII . If any DTC's are present, they must be
repaired before continuing with any other No Start diagnostic tests. Refer to the
Symptom list for the related P-code that is reported by the PCM.
Ensure that the PCI bus is functional. Attempt to communicate with the Instrument
Cluster and SKIM, If you are unable to establish communicate refer to the
Communication category for the proper symptoms.
The Sentry Key Immobilizer System must be operating properly. Check for proper
communication with the DRBIII and check for DTC's that may be stored in the
Sentry Key Immobilizer Module (SKIM). repair the DTC(s) before continuing.
If no DTC's are found, using the DRBIII select Clear PCM (Batt Disconnect).
Crank the engine several times. Using the DRBIII , read DTC's. If a DTC is present
perform the DTC diagnostics before continuing.
Were any problems found?
Yes → Repair as necessary.
→ Go To 2
No
2 Check for any open fuses in the PDC or Fuse Block that may be related to the No
Start condition.
Are any of the fuses open?
Yes → Using the wiring diagram/schematic as a guide, inspect the
→ Go To 3
No
3 Turn the ignition on.
With the DRBIII , actuate the ASD Fuel System test.
Note: It may be necessary to use a mechanics stethoscope in the next step.
Listen for fuel pump operation at the fuel tank.
Does the Fuel Pump operate?
Yes → Go To 4
→ Go To 24
No
Caution: Stop All Actuations.
ACTION
Perform POWERTRAIN VERIFICATION TEST VER - 1.
wiring and connectors, repair as necessary. Replace the Fuse.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
Continued
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APPLICABILITY
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All
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