Question

On my 2003 Jeep Liberty how to fix the engine code P0320?

Answer 1

HI there,

Here is a list of possible causes for the code. All will need to be tested, although I would start with the crank sensor. 

POSSIBLE CAUSES 

 

• Intermittent crank position signal
• Cam position sensor signal
• (K7) 5-volt supply circuit shorted to voltage
• (K7) 5-volt supply circuit open
• (K7) 5-volt supply circuit shorted to ground
• (K24) CKP sensor signal circuit shorted to voltage
• (K24) CKP sensor signal circuit open
• (K24) CKP sensor signal circuit shorted ground
• (K24) CKP sensor signal shorted to (K7) 5-volt supply circuit
• (K4) sensor ground circuit open
• Crankshaft position sensor
• PCM

Answer 2

P0320 Jeep Code - No Crank Reference Signal At PCM
Read more: https://www.autocodes.com/p0320_jeep.html