P0336

CIRCUIT DESCRIPTION
The Crankshaft Position (CKP) sensor is connected directly to the Ignition Control (IC) module. The CKP sensor consists of the following circuits:
^ The 10-volt reference circuit
^ The low reference circuit
^ The CKP sensor 1 signal circuit
^ The CKP sensor 2 signal circuit

The CKP sensor shares power supply and low reference circuits with the Camshaft Position (CMP) sensor.

CONDITIONS FOR RUNNING THE DTC
The engine is running (3X reference pulses are being received).

CONDITIONS FOR SETTING THE DTC
No 18X reference pulses are received in one engine cycle (720 degrees of crankshaft rotation).

ACTION TAKEN WHEN THE DTC SETS
^ First failure:
- The MIL is not turned ON.
- A DTC is stored in memory under Failed Last Test.
- The Failure Records are stored.
^ Second consecutive drive cycle with a failure:
- The MIL is turned ON.
- A DTC is stored in memory under history.
- The Freeze Frame data is stored.
- The Failure Records are stored.

CONDITIONS FOR CLEARING THE MIL/DTC
^ The control module turns OFF the Malfunction Indicator Lamp (MIL) after the third consecutive trip the diagnostic has run and passed.
^ The history DTC will clear if the fault conditions have not been detected for 40 warm-up cycles.
^ A scan tool can be used to clear DTC information.

DIAGNOSTIC AIDS
Inspect for the following conditions:
^ Incorrect harness routing near secondary ignition components.
^ Faulty ignition coil - Remove the ignition coils and inspect the ignition control module and coils for cracks, carbon tracking, or other signs that indicate that the coil secondary circuit is arcing to the ICM or ICM wiring harness. Refer to Ignition Coil(s) Replacement.
^ Secondary ignition wires arcing to wiring harness - Inspect secondary ignition wires for carbon tracking or other signs of damage.
^ Poor Connections - Refer to Testing for Intermittent and Poor Connections in Diagrams.

TEST DESCRIPTION

Steps 1-4:

Steps 5-12:

The number below refers to the step number on the diagnostic table.
10. This vehicle is equipped with a PCM which utilizes an Electrically Erasable Programmable Read Only Memory (EEPROM). When the PCM is replaced, the new PCM must be programmed.