Code p1698 what does this code mean, my service engine soon light is on, I had issues with the dashboard going out, but now the service engine light is on and auto zone gave me this code. P1698

Mike Butler

• 6674 Answers
• Posted on Jan 16, 2011

SOURCE: ,have 1997 plymouth grand voyager,

Sounds like you may have the dash cluster solder problem. Here's a link to some pictures of what needs to be done, but if you google Caravan dash soldering, or similar, there is more details out there.

http://www.ingriddijkers.com/CaravanPics.html

SOURCE: CHECK ENGINE LIGHTS ON. TOOK

The description for fault code P1698 is "No CCD Messages Received From PCM" The CCD bus is the circuit that your computer system uses to communicate between the computers. There are several Computers in your vehicle. You didn't mention year or model or engine size, so I can't be specific, but most have at least an Powertrain Control Module (PCM) computer, Transmission Control Module (TCM) computer, an Antilock Brake System (ABS) computer, a Passive Restraint (Air Bag) computer and the Instrument Panel Cluster (IPC) when one of these computers are unable to communicate through the CCD Bus, the other computers will tell on it. Thus, code P1698.

This can be an internal fault in the PCM (not very likely) it can be a shorted or open CCD Bus circuit, or it could be caused by the PCM losing one of its power or ground circuits and momentarilly shutting down. If your instrument cluster is also having problems like you described, the problem is most likely a power or ground circuit malfunction. The rest of your computers need to be scanned to assist in pinpointing the actual cause of this code. The "Generic OBD" scanners that they use to sell parts with at the auto parts stores do not have the capability to scan your ABS, IPC, Air Bag, or other modules. They can also not access the "Vehicle Specific" side of your PCM. They can only scan the "Generic" codes that are output by the PCM. Again, this is most likely caused by an open or shorted circuit or even a malfunctioning ignition switch - something is most likely causing the PCM, the TCM or the IPC to lose power while you are driving.

You may also find this article helpful: What Else Could Be Wrong?

Mike Butler

• 6674 Answers
• Posted on Oct 12, 2009

SOURCE: What does the Diagnostic error

First, remove battery negative cable.Then I would remove kick panel (by right foot when sitting) on passenger side & locate BCM (body control module) . remove the harness connector to it & spray well with contact cleaner in connector & on module where they meet. Let it dry a bit, then re-connect it & re-connect negative battery terminal, and see if that helps. It's not unusual for these codes to come up & make one think that a part needs to be replaced, when it's just a bad connection.

SOURCE: 1998 plymouth voyager getting codes p0500,p1698

p0500 Vehicle Speed Sensor Malfunction

SOURCE: HELP! Problems on my 1997 Grand Caravan P1698, P0138, P0140

you need to go over your entire wiring harness, under the hood and inside the dash. Start with the ground wire on the battery and work your way inside. It sounds like there is a loose ground wire somewhere