Starter Relay Circuit High
The P0617 code means the vehicle's onboard diagnostic system has detected: Starter Relay Circuit High. This is a moderate severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- moderate
- Estimated cost
- $50 - $500 (parts and labor)
Best-selling code reader on Amazon. Reads and clears check engine codes on any 1996+ vehicle. Under $30.
Check Price on AmazonAffiliate link -- we earn a commission at no extra cost to you.
Essential for diagnosing sensor codes, checking voltage, and testing circuits. Under $15 and pays for itself on the first job.
Check Price on AmazonAffiliate link -- we earn a commission at no extra cost to you.
Common Symptoms
- Check Engine Light on
- Starter may stay engaged after engine starts
- Reduced system performance
- Warning indicators on dashboard
Probable Causes (Ranked by Likelihood)
- Short to power in starter relay circuit Very High
- Wiring damage or corrosion in the circuit High
- Poor electrical connection at module or component Moderate
- ECM or control module internal failure Low
Step-by-Step Diagnostic Procedure
-
Use a scan tool to read data related to Starter Relay
-
Inspect all related wiring, connectors, and grounds for damage, corrosion, or loose connections
-
Measure circuit voltage, resistance, and continuity to identify the fault type
-
Check for technical service bulletins related to this code for your specific vehicle
Common Fixes by Vehicle
What techs usually find when diagnosing P0617 on specific vehicles — tap your vehicle for the fix and the exact part:
2007-2015 Chevrolet Silverado/Tahoe 5.3L moderate DIY
P0617 (relay high) is the opposite of P0616 -- usually a shorted control wire. Check for the starter S-terminal wire pinched under the intake manifold or rubbed against the engine block. Repair with loom + heat-shrink and zip-tie away from sharp edges.
Labor: 1-2 hours2010-2016 GMC Terrain/Chevrolet Equinox easy DIY
Internally failed starter relay stuck closed. Replace the relay. On remote-start-equipped vehicles, check that the aftermarket remote start module's starter output isn't stuck on -- bypass the RS module and test to confirm.
Labor: 20 min2008-2015 Buick Enclave/Chevrolet Traverse hard DIY
BCM internal driver failure -- less common but happens after jumpstart voltage spikes. Replace BCM and have it programmed to VIN. Always disconnect the battery before jumpstarting anything and use a surge-protected battery maintainer (NOCO Genius) to prevent repeat.
Labor: 2-3 hours + programmingFrequently Asked Questions
What does P0617 mean?
P0617 indicates a fault in the starter relay circuit high. This is an electronic control system code that affects the ECM's ability to manage the associated component or system.
Is P0617 a serious code?
This is a moderate concern that should be diagnosed soon but may not prevent driving short distances.
Can a low battery cause ECM-related codes?
Yes. Low battery voltage can cause various ECM and module communication codes. Always verify the battery is fully charged and the charging system is working before diagnosing electronic control module codes.
Sources
This page is built from documented references. Verify against your own service info before repair work.
P0617 on Diesel, EV & Equipment
The same code ID appears across other engines and platforms. The diagnostic flow varies by manufacturer — these are the platform-specific breakdowns:
See All Codes & Fixes for Your Vehicle
Explore More
Was this helpful?
Share carcodefinder.com with a friend who needs to decode their check engine light.