I've looked through the TSB's and haven't found anything in relation to these codes. Wanted to see if anyone has had these codes or if a tech may check in to help point in the right direction.

I do have a hissing coming from the bay that wasn't there before I had my last oil change. Could probably be a leak in a hose.

TIA...

 

Fix the leak ASAP if not sooner. Check for codes again after that. You won't usually even need to clear the codes as they'll clear themselves but do it after the fix to speed up relearning.
The codes are in JTIS or on the net or search here or go on jag's techinfo site if you want info on them but don't leave a leak as the fuelling will be all over and your cats are at risk.

 

P1642
CAN circuit malfunction
DEFAULT ACTION

– Speed control inhibited
– Maximum throttle opening for
N range inhibited
– Throttle opening limited to
30%
– Maximum engine speed
reduced
(Engine will not start – PATS

failure)
POSSIBLE CAUSES

CAN short circuit fault
Control module failure –
check for additional flagged DTC(s) to locate

control module source

bob gauff

 

Much appreciated Jag and motorcarman...

I'll be putting her up tomorrow morning...I'm not sure if anyone has had the 1642 pop up before but I will definitely update this thread...

 

You can search on the codes using the forum search facility (amazing, huh?). Use the full code, though. I got 41 matches for the one whose number you gave. Also, refer to JTIS or go on GTR.