1, 2 and 3 Digit Codes: 40

Scan Tool 40 (MIL 11):

Trouble Code Number
- Scan tool 40
- General scan tool P0335
- MIL 11

Fault Message
- No Crank Reference Signal at PCM

Background
- The crankshaft position sensor is a Hall-effect sensor that provides a voltage signal to the PCM.
- Voltage alternates between 0 and 5 volts as the crankshaft turns.
- This DTC would indicate a failure of the sensor or its circuit.

Range of Check
- The test is run at start-up.
- Camshaft position sensor indicates that the camshaft is rotating.

Set Condition
- Crankshaft position sensor signal (High or Low) is not input.

Probable Cause
- Open or shorted 9-volt supply circuit
- Open sensor ground
- Open or shorted signal circuit
- Excessive clearance between the sensor and rotor
- Sensor failed
- PCM failed