P1824 2014 GMC Sierra Code - Internal Mode Switch 'P' Circuit Low Voltage
Quick Answer
The P1824 diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates an issue with the Internal Mode Switch 'P' Circuit Low Voltage. Common causes include Faulty Internal Mode Switch, Wiring or connector issues in the IMS circuit, ECM malfunction. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1824 2014 GMC Sierra indicates Internal Mode Switch 'P' Circuit Low Voltage.
- Common causes
- Common causes include Faulty Internal Mode Switch, Wiring or connector issues in the IMS circuit, ECM malfunction.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P1824 2014 GMC Sierra Description
The P1824 diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates an issue with the Internal Mode Switch 'P' Circuit Low Voltage. The Internal Mode Switch (IMS) is a component within the transmission that communicates with the vehicle's electronic control module (ECM) to determine the gear selection. In this case, the 'P' circuit refers to the park position of the transmission. When the ECM detects low voltage in this circuit, it means that there is a problem with the signal being sent from the IMS.
Common Causes of P1824 2014 GMC Sierra
- Faulty Internal Mode Switch
- Wiring or connector issues in the IMS circuit
- ECM malfunction
- Low battery voltage affecting the IMS signal
- Transmission fluid contamination affecting IMS operation
Symptoms of P1824 2014 GMC Sierra
- Harsh or delayed shifting
- Inability to shift into park or other gears
- Transmission slipping
- Illumination of the Check Engine Light
- Reduced fuel efficiency
How to Fix P1824 2014 GMC Sierra
- Begin by conducting a thorough inspection of the Internal Mode Switch and its wiring harness for any visible damage or corrosion.
- Test the IMS using a multimeter to check for proper voltage output in the 'P' circuit.
- If the IMS is faulty, replace it with a new unit following manufacturer guidelines.
- Check and repair any damaged wiring or connectors in the IMS circuit.
- Clear the DTC from the ECM memory and perform a test drive to ensure the issue has been resolved.
Cost to Fix P1824 2014 GMC Sierra
The cost of repairing the Internal Mode Switch 'P' Circuit Low Voltage issue can vary depending on the specific cause of the problem and the labor rates in your area. In general, replacing the Internal Mode Switch itself can range from $150 to $300, while labor costs can add another $100 to $200. Additional costs may be incurred if wiring repairs or ECM diagnostics are necessary. It's advisable to consult with a trusted mechanic or dealership to get a more accurate estimate based on your vehicle's make and model.
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