Dodge 2004 Neon SX2 Diagnostic Manual page 655

*ENGINE CRANKS DOES NOT START —
TEST
12 Turn the ignition off.
Disconnect the Ignition Coil harness connector.
Disconnect the PCM harness connector.
Measure the resistance of the Ignition Coil driver circuit between the Ignition Coil
harness connector and the PCM harness connector.
Is the resistance below 5.0 ohms?
Yes → Go To 13
→ Repair the Ignition Coil driver circuit for an open.
No
13 Turn the ignition off.
Disconnect the Ignition Coil harness connector.
Disconnect the PCM harness connector.
Measure the resistance between ground and the Ignition Coil driver circuit in the
Ignition Coil harness connector.
Is the resistance below 100k ohms?
Yes → Repair the Ignition Coil driver circuit for a short to ground.
→ Go To 14
No
14 If there are no possible causes remaining, view repair.
Repair
15 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 16
→ Repair the 5 Volt Supply circuit.
No
16 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 17
→ Go To 19
No
17 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 18
→ Repair the Sensor Ground circuit for an open.
No
ACTION
Perform POWERTRAIN VERIFICATION TEST VER - 1.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
Continued
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STARTING
APPLICABILITY
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