When you encounter a Chrysler Code P0688, it can be daunting and confusing to know what is causing the issue. This code is known as the Auto Shutdown Relay Sense Circuit Low and indicates that no voltage is sensed at the Powertrain Control Module (PCM) when the ASD relay is energized. To properly diagnose and fix the issue, it is important to understand the cause and potential solutions. Below is a table of the potential causes and corresponding solutions for Chrysler Code P0688.
Causes and Solutions for Chrysler Code P0688
| Cause | Solution |
|---|---|
| ASD RELAY OUTPUT CIRCUIT OPEN | Check the ASD relay output circuit |
| ASD RELAY OUTPUT CIRCUIT SHORTED TO GROUND | Check the ASD relay output circuit and repair any damage |
| ASD/MAIN RELAY | Replace the ASD/Main relay |
| TOTALLY INTEGRATED POWER MODULE (TIPM) | Replace the TIPM |
| POWERTRAIN CONTROL MODULE (PCM) | Replace the PCM |
When you encounter Chrysler Code P0688, it is important to understand the cause and potential solutions. This code is an indication that no voltage is sensed at the Powertrain Control Module (PCM) when the ASD relay is energized. This code can be diagnosed and repaired by understanding the causes and solutions, which are outlined in the above table. The causes can range from an open ASD relay output circuit to a faulty ASD/Main relay or TIPM, and the corresponding solutions vary from checking the ASD relay output circuit to replacing the ASD/Main relay or TIPM. It is important to properly diagnose and repair the issue to ensure your Chrysler is running smoothly.
Check the ASD Relay Output Circuit
If the cause of the Chrysler Code P0688 is an open ASD relay output circuit, then the solution is to check the ASD relay output circuit for any damage or loose connections. By doing this, you can ensure that the circuit is properly connected and functioning correctly.
Replace the ASD/Main Relay
If the cause of Chrysler Code P0688 is a faulty ASD/Main relay, then the solution is to replace this relay with a new one. By replacing the ASD/Main relay, you can ensure that the connection is secure and the relay is functioning correctly.
Replace the TIPM and PCM
In some cases, the cause of Chrysler Code P0688 can be a faulty TIPM or PCM. If this is the case, then the solution is to replace the TIPM or PCM with a new one. By replacing the TIPM or PCM, you can ensure that the connection is secure and the module is functioning correctly.
Conclusion: Taking the Right Steps to Diagnose and Fix Chrysler Code P0688
Chrysler Code P0688 is an indication that no voltage is sensed at the Powertrain Control Module (PCM) when the ASD relay is energized. To properly diagnose and fix the issue, it is important to understand the causes and potential solutions outlined in the table above. From checking the ASD relay output circuit to replacing the ASD/Main relay or TIPM, taking the right steps to diagnose and fix Chrysler Code P0688 is essential for ensuring your Chrysler is running smoothly. It is important to properly diagnose and repair Chrysler Code P0688 in order to keep your Chrysler running optimally.
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