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DTC P1336

The Crankshaft Position sensor sends pulses to the ECM as the reluctor wheel teeth rotate past the Crankshaft Position sensor. The ECM uses the Crankshaft Position pulses to synchronize the ignition and fuel injector operation, and to time the interval between each Crankshaft Position pulse. The ECM determines when an excessive change in crankshaft speed occurs by comparing each new time interval with the previous interval. A misfire causes an unexpected change in the crankshaft speed. A certain amount of acceleration/deceleration is expected between each firing stroke, but if the crankshaft speed changes more then an expected amount, the ECM interprets this as a misfire. The interval between the Crankshaft Position sensor pulses is extremely small. At high engine speeds, slight variations in the following components make misfire detection difficult: Crankshaft, Reluctor wheel and the Crankshaft Position sensor. The ECM compensates for these variations when performing detect misfire calculations.

The ECM detects that the crankshaft position variation is more than 7.8%.

DTC P1336 is a Type A DTC.

DTC P1336 is a Type A DTC.

Schematic Reference

Engine Controls Schematics

Connector End View Reference

Component Connector End Views

Electrical Information Reference

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Scan Tool Reference

Control Module References for scan tool information

Verify none of the following conditions exist:

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for ECM replacement, programming and setup