01 PT Cruiser wont start.

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  #1  
Old 06-13-15, 12:38 PM
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01 PT Cruiser wont start.

my 01 pt cruiser died going down the road and now wont start. It had a camshaft positioning sensor code. replaced the sensor and the crank positioning sensor and still wont crank. checked the canmshaft sensor and wiring, all good. was checking the crank sensor and wiring and ran into a confusing problem. the wire that is supposed to supply power to the sensor is reading nothing.the wire that is supposed to send the signal to the pcm is reading a constant 5v
 
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  #2  
Old 06-13-15, 01:15 PM
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With the key on and the vehicle not running you should measure the logic supply which is 5V on one wire and 0 on the other. When you crank the vehicle..... the 0 side should pulse upwards to 5v.

OR....

with the key on and the vehicle not running you should measure the logic supply of 5V on the one wire and 0 on the other. When you crank the vehicle.... the 5V side will pulse downwards to 0v.

Camshaft sensor..... this is a three wire sensor.
Pin 1 = gray/pink = 5v supply
Pin 2 = tan/yellow = signal to PCM
Pin 3 = brown/gray = ground from PCM

Crankshaft sensor..... this is also a three wire sensor.
Pin 1 = brown/white = ground from PCM
Pin 2 = gray/pink = signal to PCM
Pin 3 = orange = 5v supply
 

Last edited by PJmax; 06-13-15 at 01:39 PM. Reason: added sensor info
  #3  
Old 06-13-15, 06:26 PM
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Have you also checked for broken timing belt?
 
  #4  
Old 06-20-15, 10:08 PM
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found out it was a broken power wire to the crankshaft sensor. wiring harness had fallen on the axle and it had rubbed the wire in two
 
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