Dodge 2004 Neon SX2 Diagnostic Manual page 662

STARTING
*ENGINE CRANKS DOES NOT START - 1.6L —
TEST
7 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 zero?
Yes → Go To 8
→ Go To 9
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 off.
Disconnect the CKP Sensor harness connector.
Turn the ignition on.
Measure the voltage of the 5 Volt Supply circuit in the CKP Sensor harness connector.
Is the voltage between 4.8 and 5.2 volts?
Yes → Go To 10
→ Repair the 5 Volt Supply circuit.
No
10 Turn the ignition off.
Disconnect the CKP Sensor harness connector.
Turn the ignition on.
Measure the voltage of the CKP Sensor Signal circuit in the CKP Sensor harness
connector.
Is the voltage between 4.5 and 5.0 volts?
Yes → Go To 11
→ Go To 13
No
11 Turn the ignition off.
Disconnect the CKP Sensor harness connector.
Measure the resistance between ground and the Sensor Ground circuit at the CKP
Sensor harness connector.
Is the resistance below 100 ohms?
Yes → Go To 12
→ Repair the Sensor Ground circuit for an open.
No
ACTION
Perform POWERTRAIN VERIFICATION TEST VER-1 - 1.6L.
Perform POWERTRAIN VERIFICATION TEST VER-1 - 1.6L.
Perform POWERTRAIN VERIFICATION TEST VER-1 - 1.6L.
Continued
326
APPLICABILITY
All
All
All
All
All