Diagnostic Test

1) DTC IS ACTIVE
Ignition on, engine not running.

With the scan tool select View DTCs.

Record the related Freeze Frame data.

Start the engine and allow it to reach operating temperature.

WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts, or fan. Do not wear loose clothing. Failure to follow these instructions can result in personal injury or death.

NOTE: If the DTC does not reset it may be necessary to test drive the vehicle.

Is the status Active for this DTC?

Yes
1. Go To 2).
No
1. Refer to the *CHECKING FOR AN INTERMITTENT CONDITION Diagnostic Procedure.
2) CRANKSHAFT POSITION SENSOR CIRCUIT WIRING OR CONNECTORS
Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Crankshaft Position Sensor and the Powertrain Control Module (PCM).

Look for any chafed, pierced, pinched, or partially broken wires.

Look for broken, bent, pushed out or corroded terminals.

Inspect the Crankshaft Position Sensor for conditions such as loose mounting screws, damage, or cracks.

Were any problems found?

Yes
1. Repair as necessary.
2. Perform PCM VERIFICATION TEST .
No
1. Go to 3).
3) CRANKSHAFT POSITION SENSOR IRREGULAR SIGNAL

Fig 1: Checking Signal Circuit In CKP Sensor Harness Connector
Courtesy of CHRYSLER LLC

Turn the ignition off.

Using a lab scope and the Miller special tool #6801, backprobe the (K24) CKP Signal circuit in the Crankshaft Position Sensor harness connector.

Ignition on, engine not running.

Wiggle the related wire harness and lightly tap on the Crankshaft Position Sensor while monitoring the lab scope screen.

Start the engine.

Monitor the Crankshaft Position Sensor signal on the lab scope screen.

Were any Crankshaft Position Sensor signals irregular or missing?

Yes
1. Go to 4).
No
1. Refer to the *CHECKING FOR AN INTERMITTENT CONDITION Diagnostic Procedure.
4) CRANKSHAFT, TONE WHEEL OR FLEX PLATE
Turn the ignition off.

Remove the Crankshaft Position Sensor.

Inspect the Crankshaft Position Sensor and mounting area for any condition that would result in an incorrect signal, such as damage, foreign material, or excessive movement.

Were any problems found?

Yes
1. Repair as necessary in accordance with the Service Information.
2. Perform PCM VERIFICATION TEST .
No
1. Go To 5).
5) CRANKSHAFT POSITION SENSOR
Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Crankshaft Position Sensor and the Powertrain Control Module (PCM).

Look for any chafed, pierced, pinched, or partially broken wires.

Look for broken, bent, pushed out or corroded terminals.

Were any problems found?

Yes
1. Repair as necessary.
2. Perform PCM VERIFICATION TEST .
No
1. Replace the Crankshaft Position Sensor.
2. Perform PCM VERIFICATION TEST .