Code P1694

Johnno · 07-31-2010, 08:21 AM

I put a code reader on my 1999 Cherokee 6 cyl and got code P1694.
The vehicle will not start.
Anybody know what this code is?

Johnno · 07-31-2010, 09:02 AM

Ok, this is what i found out.

P1694
Fault In Companion Module
No CCD/J1850 messages received from the powertrain control module-Asian transmission.

P1694 (M)
No BUS CCD Messages Received from ECM
Bus communication failure to PCM.

What do I need to do to fix it?

Johnno · 08-01-2010, 05:26 PM

Replaced the computer I get the same code.

**jfxj67** · 08-01-2010, 08:14 PM

I was hoping that the OBDII Guru's would chime in by now...

After doing an extensive thread search, it sounds like it could be a faulty CPS.

This is what found for ya...

XJ No start. Getting code P1694 - NAXJA Forums -::- North American XJ Association

Hope this helps!

Johnno · 08-02-2010, 10:51 AM

I replaced the crankcase position sensor and all is now well.
It turns out that when the CPS shorts (and it was), the computer
shuts down to prevent damage to itself. As a result, no communication (P1694).

Thanks jfxj67.

**jfxj67** · 08-02-2010, 10:44 PM

Glad to help!

07-31-2010, 08:21 AM	#1
Johnno Seasoned Feedback Score: 0 reviews Join Date: Feb 2010 Location: Taunton, Massachusetts Posts: 35	Code P1694 I put a code reader on my 1999 Cherokee 6 cyl and got code P1694. The vehicle will not start. Anybody know what this code is?

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07-31-2010, 09:02 AM	#2
Johnno Seasoned Feedback Score: 0 reviews Join Date: Feb 2010 Location: Taunton, Massachusetts Posts: 35	Ok, this is what i found out. P1694 Fault In Companion Module No CCD/J1850 messages received from the powertrain control module-Asian transmission. P1694 (M) No BUS CCD Messages Received from ECM Bus communication failure to PCM. What do I need to do to fix it?

08-01-2010, 05:26 PM	#3
Johnno Seasoned Feedback Score: 0 reviews Join Date: Feb 2010 Location: Taunton, Massachusetts Posts: 35	Replaced the computer I get the same code.

08-02-2010, 10:51 AM	#5
Johnno Seasoned Feedback Score: 0 reviews Join Date: Feb 2010 Location: Taunton, Massachusetts Posts: 35	I replaced the crankcase position sensor and all is now well. It turns out that when the CPS shorts (and it was), the computer shuts down to prevent damage to itself. As a result, no communication (P1694). Thanks jfxj67.

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