DTC P26E6 (2025)

DTC P26E6  : Starter Cut Relay 2 Control Circuit High Voltage

NOTE:  Before you troubleshoot, review the general troubleshooting information - Refer to: HOW TO TROUBLESHOOT THE FUEL AND EMISSIONS SYSTEMS or HOW TO TROUBLESHOOT THE ELECTRIC BRAKE BOOSTER SYSTEM .

DTC (PGM-FI)

1. Problem verification

   -1. Turn the vehicle to the ON mode.

   -2. Clear the DTC with the HDS.

   -3. Start the engine.

   -4. Check for Pending or Confirmed DTCs with the HDS.

   DTC Description	Confirmed DTC	Pending DTC
   P26E6 Starter Cut Relay 2 Control Circuit High Voltage

   Is DTC P26E6 indicated?

   YES 

   The failure is duplicated. Go to step 2.

   NO 

   Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at starter cut relay 2 and the PCM. If the on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the on-board snapshot - Refer to: HOW TO TROUBLESHOOT THE FUEL AND EMISSIONS SYSTEMS or HOW TO TROUBLESHOOT THE ELECTRIC BRAKE BOOSTER SYSTEM .

2. Relay check

   -1. Turn the vehicle to the OFF (LOCK) mode.

   -2. Remove starter cut relay 2 - Refer to: RELAY LOCATIONS (2021 2022 2023 2024 2025) .

   -3. Test starter cut relay 2 - Refer to: POWER RELAY TEST .

   Is the relay OK?

   YES 

   Go to step 3.

   NO 

   Replace starter cut relay 2.

3. Shorted wire check (ST CUT RLY2 CL- line to power)

   -1. Jump the SCS line with the HDS, and wait more than 1 minute.

   -2. Disconnect the following connector.

   PCM connector A (50P)

   -3. Turn the vehicle to the ON mode.

   -4. Measure the voltage between test points 1 and 2.

   Test condition

   Vehicle ON mode

   Starter cut relay 2: disconnected

   PCM connector A (50P): disconnected

   Test point 1

   PCM connector A (50P) No. 42 - Refer to: PCM CONNECTOR FOR INPUTS AND OUTPUTS

   Test point 2

   Body ground

   Is there 0.1 V or less?

   YES 

   The ST CUT RLY2 CL- wire is OK. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or substitute a known-good PCM, then recheck. If DTC P26E6 goes away and the PCM was substituted, replace the original PCM PCM REMOVAL AND INSTALLATION .

   NG

   Repair a short to power in the ST CUT RLY2 CL- wire between the PCM (A42) and starter cut relay 2.