PSG16 / P0337 2E
Read the instructions below then 
start the fault diagnostic procedure.
Symptom: Fault indicator lamp (for further information see WIS Fault diagnosis, general)
A/C not working, no cooling.
	
Engine Speed Sensor. No Signal During Cranking.

Fault symptom
Fault indicator lamp (for further information see WIS Fault diagnosis, general)
A/C not working, no cooling.
On-board diagnosis
Type of diagnosis:
Enable criteria:
Fault criteria:
| No signal from crankshaft position sensor. | 
System reaction to a fault:
| Limp Home, fuel limitation. | 
| The control module uses pump rpm x2 as a substitute value. | 
| Output to the A/C relay is switched off. | 
| EGR turned off in case of fault. | 
Checking the wiring harness
| • | Faults in the control module female connector can be the cause of the DTC. Check the connector with respect to oxidation, depressed pins and pin clamping force. | 
| • | Jiggle the wiring harness at several points to detect intermittent breaks or short circuits. Check also the connector for oxidation or loose pins. | 
Diagnostic help
Diagnosis regards:
Functions in the diagnostic tool related to the fault:
| (See also description of readings/activations in diagnostic tool) |