The OBD code P1682 for Chevrolet indicates a problem with the ignition switch circuit.
Symptoms include the engine light being on and the engine not cranking or starting.
This issue is commonly caused by a faulty ignition switch, open/shorted harness, poor electrical connection, or a faulty Engine Control Module (ECM).
It is a serious problem that requires immediate attention.
To fix it, inspect the wiring harness, connectors, and components for any damage or corrosion.
| Repair Importance Level | 10.0 (Out of 10) |
| Estimated Repair Time | Approximately 1.0 hour |
| Repair Difficulty Level | 6.67 (Out of 10) |
Symptoms of the Chevrolet p1682 OBD Code
The vehicle may experience issues related to the ignition switch circuit malfunction indicated by code P1682.
- Symptoms: Engine Light ON.
- No Engine Crank or Start.
Causes of the Chevrolet p1682 OBD Code
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P1682 in a Chevrolet typically indicates a communication issue between the ECM and the ignition switch.
- P1682 can be caused by a faulty ignition switch.
- An open or shorted ignition switch harness.
- A poor electrical connection in the ignition switch circuit.
- Or a faulty Engine Control Module (ECM).
Fixing Chevrolet Error Code p1682 Step By Step
Address the high voltage condition on the ignition 1 circuit in a Chevrolet with fault code P1682.
- To fix Chevrolet OBDII code P1682, start by reviewing the possible causes mentioned above.
- Visually examine the wiring harness and connectors related to the ignition switch circuit.
- Check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
- If any issues are found, repair or replace the damaged wiring or connectors as necessary.
- Clear the fault code from the vehicle’s computer using a scan tool.
- Test drive the vehicle to see if the code returns.
- If the code persists, further diagnosis may be needed to pinpoint the exact cause of the P1682 code.
Cost Of Fixing Chevrolet p1682 Fault Code
The repair for Chevrolet fault code P1682 typically involves diagnosing and fixing an ignition 1 switch circuit malfunction.
The cost to diagnose and fix a Chevrolet OBD code P1682 typically ranges from $75 to $150 per hour for labor rates.
With an estimated repair time of 1. 0 hour, the total cost can be around $75 to $150, depending on shop rates and the complexity of the issue.
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Details of the Chevrolet p1682 OBD Code
Chevrolet fault code P1682 relates to ignition 1 switch circuit malfunction.
Chevrolet OBD code P1682 means that there is a communication error between the ECM (Engine Control Module) and the TCM (Transmission Control Module).
This code is triggered when the ECM detects a discrepancy in the communication signals between these two modules.
The ECM and TCM need to communicate effectively to ensure proper engine and transmission operation.
If this communication error persists, it can lead to drivability issues and potential transmission problems.
Mechanic’s Tech Notes
P1682 code indicates that there is a problem with the ignition switch circuit.
To diagnose and fix OBDII code P1682 on a Chevrolet, start by checking the Transmission Control Module (TCM) power and ground using a multimeter.
Verify TCM communication over the Controller Area Network (CAN) using a scan tool.
If the TCM does not respond, reprogramming or reflashing may be necessary.
Visually inspect the wiring harness and connectors for any damage, focusing on broken, bent, or corroded pins.
Ensure all connections are secure.
Additionally, check for any signs of water intrusion or rodent damage in the wiring.
By following these steps, you can pinpoint the issue causing code P1682 and proceed with the appropriate repair.
FAQ
Chevrolet OBD code P1682 indicates a problem with the ignition switch circuit. Check for faulty ignition switch, wiring issues, or ECM problems. Inspect and repair as needed.
Symptoms of P1682 in a Chevrolet: Engine Light ON, No Engine Crank/Start. Causes: Faulty ignition switch, harness issues, poor connections. Fix: Inspect wiring, connectors for damage or corrosion.
To diagnose and fix a P1682 code in a Chevrolet car, check for a faulty ignition switch, open/shorted harness, poor connections, or a faulty ECM. Inspect wiring and connectors for damage.
Wrap Up
If your Chevrolet is displaying OBD code P1682 along with issues like intermittent stalling, rough idling, or difficulty starting, it may indicate a problem with the ignition switch circuit.
This could be caused by a faulty ignition switch, damaged wiring, or poor connections in the circuit.
To address Chevrolet OBD code P1682, start by inspecting the ignition switch, checking for any signs of wear or damage.
Next, examine the wiring harness connected to the ignition switch for any frayed wires or loose connections.
Finally, test the circuit for proper voltage and continuity to pinpoint the root cause
