P1314 – OBD-II DTC

OBD-II DTC P1314 – Kickdown Relay Pull – In Circuit Fault

DTC P1314 meaning

DTC P1314 refers to a fault in the kickdown relay pull-in circuit. This diagnostic trouble code indicates that the engine control module (ECM) has detected an issue with the circuit responsible for activating the kickdown relay, which is crucial for the proper functioning of the transmission during acceleration. The kickdown relay is responsible for allowing the transmission to downshift to a lower gear when more power is needed, such as during rapid acceleration.

DTC P1314 symptoms

Common symptoms associated with DTC P1314 may include:

• Delayed or harsh shifting of the transmission
• Loss of acceleration power
• Increased engine RPM without corresponding vehicle speed
• Check Engine Light (CEL) illuminated
• Unusual engine behavior during acceleration

DTC P1314 causes

Several factors can lead to the occurrence of DTC P1314, including:

• Faulty kickdown relay
• Wiring issues, such as shorts or open circuits in the kickdown relay circuit
• Corroded or loose electrical connections
• Faulty engine control module (ECM)
• Issues with the transmission control module (TCM)

DTC P1314 seriousness

The seriousness of DTC P1314 can vary depending on the symptoms experienced. While it may not cause immediate safety concerns, it can lead to:

• Reduced vehicle performance
• Increased wear on transmission components
• Potential for further damage if left unaddressed

It is advisable to diagnose and repair the issue promptly to maintain optimal vehicle performance and prevent additional complications.

How to diagnose DTC P1314

To diagnose DTC P1314, follow these steps:

1. Use an OBD-II scanner to confirm the presence of DTC P1314.
2. Inspect the kickdown relay and its wiring for any visible damage or corrosion.
3. Check the electrical connections for tightness and cleanliness.
4. Test the kickdown relay operation using a multimeter.
5. Examine the ECM and TCM for any fault codes or issues.
6. Perform a continuity test on the kickdown relay circuit.
7. Clear any other related DTCs that may be present.

How to fix DTC P1314 step-by-step instructions

To fix DTC P1314, follow these step-by-step instructions:

1. Disconnect the vehicle’s battery to ensure safety.
2. Inspect and replace the kickdown relay if it is found to be faulty.
3. Repair or replace any damaged wiring or connectors in the kickdown relay circuit.
4. Ensure all electrical connections are clean and secure.
5. Reconnect the battery and clear the DTC using an OBD-II scanner.
6. Test drive the vehicle to ensure the issue is resolved and monitor for any reoccurrence of the DTC.

How to erase DTC P1314

To erase DTC P1314, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn on the ignition without starting the engine.
3. Navigate to the DTC menu on the scanner.
4. Select the option to clear or erase trouble codes.
5. Confirm the action and wait for the scanner to complete the process.
6. Disconnect the scanner and start the vehicle to ensure the DTC has been cleared.

Recommended tools for OBD-II diagnostics

Explore our expert picks: The Best OBD2 Scanners for 2025

Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter

Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.