P1388 no start

P1388 JEEP - ASD or CNG (compressed Gas) Relay Control Circuit Possible causes - Faulty ASD Relay (most common cause)
- Faulty CNG Relay
- ASD or CNG Relay harness is open or shorted
- ASD or CNG Relay circuit poor electrical connection
- ASD or CNG Relay poor ground or supply voltage condition

P1399 is a related to the P1388 failure.

P1388 OBD-II Trouble Code references Variable Cam Timing Overretarded Bank 2, that is the most common definition for the P1388..

P1388 Variable Cam Timing Overretarded (Bank #2)
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mpps v13.02

P1388 -Auto ShutDown (ASD) relay control circuit

P1388 Variable Cam Timing Overretarded (Bank #2)

Jaguar issued a Technical Service Bulletin related to this code ("Malfunction indicator lamp illuminated 3.0 l v6 false flagging of diagnostic trouble code P1383 or P1388"); reprogramming of the PCM should correct the problem

If your PCM already has been updated, then there is an issue with your variable valve timing system. It will need further diagnosis.

P1388 FORD - Variable Cam shaft timing is Overly ******** on cyinder bank #2

That is all that is available without a factory service and repair manual to troubleshoot from. Fixya doesn't have these manuals available to experts, I have asked for them.

Auto shutdown relay control circuit=p1388

P1388 Variable Cam Timing Overretarded (Bank #2)

This is a Jaguar specific code.

WHAT YEAR IS IT?

OK.. HI.

The codes you have they refer to:
P0340. No cam signal at the PCM
P0622. Generator field not switching properly. " Charging system"
P1388. Auto shutdown relay control circuit.

""""""""NOTE"""""""""
"" P0340" This code , cam sensor make the car long start or not start, conditions.