What Does P0617 Mean?
P0617 indicates that the starter relay circuit voltage is higher than expected. The ECM/PCM has detected excessive voltage on the starter relay control or feedback circuit, which typically indicates a short to battery voltage in the control wiring or a relay stuck in the energized position. The driver may experience the starter staying engaged after the engine starts, the starter relay clicking continuously, or the starter engaging unexpectedly.
Safety Warning
Do not drive until resolved. A high voltage condition in the starter circuit can cause the starter to engage unexpectedly or stay engaged while the engine is running. A starter engaged with the engine running will spin at dangerous RPMs and can fly apart, overheat, or catch fire. If the starter stays engaged, disconnect the battery immediately and have the vehicle towed.
Common Causes
35%
Short to battery voltage in the starter relay control circuit wiring
25%
Starter relay contacts welded closed (stuck engaged)
18%
Ignition switch or start circuit fault providing continuous start signal
12%
ECM/PCM internal relay driver shorted — continuously energizing the relay
10%
Aftermarket remote start system interfering with the starter relay circuit
Diagnostic Steps
1
SAFETY FIRST: If the starter is staying engaged with the engine running, immediately disconnect the battery to prevent starter motor damage and potential fire. Then proceed with diagnosis.
2
Remove the starter relay and check if voltage is still present on the relay socket control pin with key off — there should be no voltage. If voltage is present, there is a short to power in the control wiring that must be traced and repaired.
3
Test the starter relay: check coil resistance (50-100 ohms typical) and verify contacts are open when the coil is not energized. If contacts show near 0 ohms with the coil de-energized, the contacts are welded and the relay must be replaced.
4
Check the ignition switch — verify the start signal wire only has voltage when the key is in the START position, not in the RUN position. A worn ignition switch can short the start and run circuits together.
5
If an aftermarket remote start system is installed, inspect its wiring to the starter circuit. Disconnect the remote start module and test — if P0617 clears, the aftermarket system is the cause.
Estimated Repair Cost
$50 - $500
Parts + labor, varies by vehicle and location
P0617 indicates that the starter relay circuit voltage is higher than expected. The ECM/PCM has detected excessive voltage on the starter relay control or feedback circuit, which typically indicates a short to battery voltage in the control wiring or a relay stuck in the energized position. The driv...
The most common cause of P0617 (Starter Relay Circuit High) is: Short to battery voltage in the starter relay control circuit wiring
Typical repair costs for P0617 range from $50 to $500, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Do not drive until resolved. A high voltage condition in the starter circuit can cause the starter to engage unexpectedly or stay engaged while the engine is running. A starter engaged with the engine running will spin at dangerous RPMs and can fly apart, overheat, or catch fire. If the starter stays engaged, disconnect the battery immediately and have the vehicle towed.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P0617 to identify the root cause.
OBDHut Mobile App
Scan codes directly from your car with the OBDHut app.
Coming Soon
Quick Info
Category
Powertrain
System
Starting System
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
