P0617 Fault Code

Starter Relay Circuit High

• What does that mean?
• Symptoms
• Causes
• Solutions

The P0617 fault code indicates an issue with the starter relay circuit being too high. This typically means that there is an electrical problem, which could be caused by overvoltage in the starter relay circuit or a fault within the Engine Control Module (ECM) that governs this circuit. It's important to diagnose this issue promptly to avoid further complications while starting the vehicle.

What are the symptoms of the P0617 code?

Drivers may notice various symptoms associated with the P0617 code, such as:

• Difficulty starting the engine, resulting in prolonged cranking times.
• Engine cranks but does not start because the starter relay is not functioning properly.
• Warning lights on the dashboard, such as the check engine light, may be illuminated.
• Intermittent starting issues or no response when turning the ignition key.

What causes the P0617 code?

Several factors can contribute to the P0617 code, including:

• A failed starter relay that does not open or close properly.
• Short circuits in the starter relay circuit, causing excessive voltage.
• Defective wiring or connectors related to the starter relay.
• Malfunctions within the Engine Control Module (ECM), leading to incorrect voltage readings.
• Battery issues, such as high voltage from a faulty battery or alternator.

How to fix P0617?

To resolve the P0617 fault code, one or more of the following steps may be necessary:

• Inspect the starter relay for any visible signs of damage or wear, replacing it if defective.
• Check the wiring and connectors for any signs of corrosion, damage, or loose connections.
• Use a multimeter to measure the voltage in the starter relay circuit, and repair any shorts or open circuits encountered.
• Test the ECM and reflash or replace it if it's malfunctioning and causing incorrect voltage readings.
• Ensure the battery is in good condition and that the charging system is functioning correctly.