Overview

Engine Crankshaft Speed/Position Sensor Circuit

Circuit Description

The engine crankshaft speed/position sensor and the engine camshaft speed/position sensor provide engine speed and position information to the engine control module (ECM) through the engine harness.

Component Location

The engine crankshaft speed/position sensor is located on the intake side of the engine near the number 6 cylinder at the crankshaft centerline. The engine camshaft speed/position sensor is located above the fuel pump in the back of the gear housing.

Shop Talk

Possible causes of this fault code include:

• External fuel sources drawn into the intake air passage

• Reverse powering (motoring) of the engine

• Tampering of the engine speed/position sensors.

Inspect the intake manifold for sources of flammable vapors. Check the turbocharger seals to verify that there are no oil leaks. Inspect the engine speed/position sensors for damage or tampering.

Refer to Troubleshooting Fault Code t05-234.

Last Modified: 28-Nov-2012

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