01 The 9 Silent Signs of a Failing Oxygen Sensor • 02 What is the Purpose of Hazard Lights and How to Use Them Pr… • 03 This Is How A Wing Actually Generates Lift And Why It’s Not… • 04 What Happens If You Drop The Anchor At Full Speed? • 05 Why Wrong Donut Tire's Position Could Cost You Thousands in… • 06 Pressed the Gas, But Going Nowhere? Why Your Car Won't Acce… • 07 0.008 Seconds: Inside the World's Fastest Gearbox Technolog… • 08 8 Factors That Contribute to High Fuel Consumption • 09 How to Improve Fuel Efficiency in Cars: Tips and Techniques • 10 Infotainment Evolution: From AM and FM to Touchscreen Conne… •

DTC codes / GM codes / P1698

P1698 · GMNo CCD Messages Received From PCM

P1698 on a GM vehicle means the Body Control Module (BCM) or another module on the Class 2 serial data bus has not received any messages from the Powertrain Control Module (PCM) over the Chrysler Collision Detection (CCD) bus for a set period. The computer detected a complete loss of communication from the PCM, not a single missed message, which points to a wiring, power, or PCM fault rather than a sensor problem.

SystemPowertrain
Code typeGM specific
SeverityHigh
Fix difficultyProfessional
AreaComputer and output circuits

Guidance is general and written for GM vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.

Running on fumes Free guides aren't free to make. Top up the tank. Any amount, one time. Fuel the Garage