Dodge 2004 Neon SX2 Diagnostic Manual page 654

STARTING
*ENGINE CRANKS DOES NOT START —
TEST
7 Turn the ignition off.
WARNING: The fuel system is under a constant pressure even with the
engine off. Before testing or servicing any fuel system hose,fitting or line,
the fuel system pressure must be released.
Remove the Fuel Pump Module and inspect the Fuel Inlet Strainer.
Is the Fuel Inlet Strainer plugged?
Yes → Replace the Fuel Pump Inlet Strainer.
→ Replace the Fuel Pump Module.
No
8 The following items need to be checked as a possible cause for a no start condition.
Refer to any Technical Service Bulletins that may apply to the symptom.
The spark plugs must be free from fuel, oil, coolant and/or any foreign material or
deposits.
The fuel must be free from contamination.
The exhaust may be free from restrictions.
The engine compression must be within specifications.
The engine valve timing must be within specifications.
The engine must be free from vacuum leaks.
Were any of the above conditions found?
Yes → Repair as necessary.
→ Test Complete.
No
9 Turn the ignition on.
With the DRBIII in Sensors, select the RPM parameter.
While cranking the engine monitor the RPM parameter.
Does the DRBIII display a RPM reading greater than 50 RPM and steady?
Yes → Go To 10
→ Go To 15
No
10 Turn the ignition off.
Disconnect the Ignition Coil harness connector.
Turn the ignition on.
With the DRBIII , actuate the ASD Relay.
Using a 12-volt test light connected to ground, probe the ASD Relay Output circuit in
the Ignition Coil harness connector.
Does the test light illuminate brightly?
Yes → Go To 11
→ Repair the ASD Relay Output circuit.
No
11 Turn the ignition off.
Disconnect the Ignition Coil harness connector.
Using a 12-volt test light connected to 12-volts, probe the Ignition Coil Driver circuit.
Crank the engine for 5 second while observing the test light.
Does the test light blink/flicker?
Yes → Replace the Ignition Coil.
→ Go To 12
No
ACTION
Perform POWERTRAIN VERIFICATION TEST VER - 1.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
Continued
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APPLICABILITY
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