DTC P0336: CRANKSHAFT POSITION SENSOR CIRCUIT
NOTE:To locate components, see COMPONENT LOCATIONS. For circuit reference, see WIRING DIAGRAMS. For connector terminal identification, see CONNECTOR IDENTIFICATION. For intermittent conditions, see INTERMITTENT CONDITIONS under SELF DIAGNOSTIC SYSTEM. If testing requires component removal or replacement, see appropriate REMOVAL & INSTALLATION article.
Crankshaft Position (CKP) sensor is connected directly to Ignition Control Module (ICM). CKP senor consists of the following circuits:
12-volt reference circuit.
Low reference circuit.
CKP sensor 1 signal circuit.
CKP sensor 2 signal circuit.
CKP sensor shares power supply and low reference circuits with camshaft position (CMP) sensor. If the PCM detects no 18X reference pulses in one engine cycle. DTC P0336 sets.
Conditions For Running DTC
Engine is running and 3X reference pulses are being received.
Conditions For Setting DTC No 18X reference pulses are received in one engine cycle, 720 degrees of crankshaft rotation.
Action Taken When DTC Sets
The control module illuminates the Malfunction Indicator Light (MIL) on the second consecutive ignition cycle that the diagnostic runs and fails.
The control module records the operating conditions at the time the diagnostic fails. The first time the diagnostic fails, the control module stores this information in the Failure Records. If the diagnostic reports a failure on the second consecutive ignition cycle, the control module records the operating conditions at the time of the failure. The control module writes the operating conditions to the Freeze Frame and updates the Failure Records. Conditions For Clearing MIL/DTC
The control module turns off the MIL after 3 consecutive ignition cycles that the diagnostic runs and does not fail.
A current DTC, Last Test Failed, clears when the diagnostic runs and passes.
A history DTC clears after 40 consecutive warm-up cycles, if no failures are reported by this or any other emission related diagnostic.
Clear the MIL and the DTC with a scan tool.
Diagnostic Procedures: referred to the two figures and follow the instructions
Images (Click to enlarge)
Tuesday, November 23rd, 2010 AT 6:12 AM