P1698

[manuel13]

which could be the posible causes for the code P1698 on a Plymouth/Grand Voyanger SE/1998/3.3

Topic

[dreamer2355]

i just did a quick ‘Google’ search and came up with this –

http://en.allexperts.com/q/Chrysler-Rep … 98-CCD.htm

The above link should be somewhat helpful.

You will need wiring schematics and the correct equipment to diagnose this one.

[jacobnbr1]

It is more common problem than you think…

I usually put a DSO scope on the CCD and start disconnecting nodes until I get the bus circuit to come up.
Usually a short in one of the modules or shorted wire.

This is a STAR design network so there is (+) and (-) bus wires that is controlling the communication within all nodes.
Not sure what problem you are having but a GOOD scan tool can tell you a lot by doing an all modules status and seeing what nodes are online and which ones are not. The scan tool uses SCI to interface with CCD so you should get some communication unless there is a dead short and the complete network is offline.

Without a DSO you can do the following:

1. Check for 2.5 volts at the DLC on pins 3 and 11, key on.

2. If voltage is 2.7 volts or higher, or below 2.5 volts, disconnect the modules that are on the Chrysler Collision Detection (CCD) bus circuit.

3. Depending on options, the vehicle may have more or less modules on the bus. These controllers will need to be unplugged to make sure they are not affecting the BUS voltage.

4. Also check under the battery and tray for acid damage to the bus wires.

[David Zitterich]

I just fixed one of these a few months back. I had to remove the Instrument cluster and using a magnifying glass look for a cracked solder joint at the circuit board where the main connector plugs into it, mine had the broken solder joint for the instrument cluster ground. All i had to do was take my solder gun and simply heat up the cracked solder joint, dont add any more solder. Just think off this problem as a row of christmas lights when a bulb burns out you loose a strand of lights, kind of the same with this system, all your modules talk on a bus line or you could say phone line, If a component fails to power up then the message can not be transferred through to the next. Here is the procedure I used to locate the problem.

1. Check the voltages on the Bus wires at pins 3 and 11 of the Data Link Connector (DLC), each pin should read about 2.5 volts
2 .If higher than 3 volts, remove fuse 28 (labeled memory) in the power distribution center and fuse 2 (labeled guages) in the junction block.
3. If the voltages come down to around 2.5 volts , check for a bad circuit board in the instrument cluster, re-install the fuses from step 2 and remove the cluster
to determine if the voltage on the BUS wire drops to 2.5 volts, if yes the cluster circuit board has failed or has a broken solder joint.

[EricTheCarGuy]

Great suggestions people. FYI I’d like to point out that you can also type check engine light codes into the search function on this site as it contains all the OBDII codes in the database along with some OBDI stuff as well. In addition stuff like this forum thread will also come up along with additional information that might be helpful. Keep us posed on what you find.

[Author]

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