DTC P1683: Throttle Valve Default Position Spring Performance Problem

Courtesy of HONDA, U.S.A., INC.

Do not insert your fingers into the installed throttle body when you turn the vehicle to the ON mode, or while the vehicle is in ON mode. If you do, you will seriously injure your fingers if the throttle valve is activated.

NOTE:  Before you troubleshoot, review the general troubleshooting information - Refer to: HOW TO TROUBLESHOOT THE FUEL AND EMISSIONS SYSTEMS or How to Troubleshoot the CVT System(CVT) .

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. Hold the engine speed at 3, 000 rpm without load (CVT in P or N, M/T in neutral) until the radiator fan comes on, then let it idle.

   - 5. Turn the vehicle to the OFF (LOCK) mode, and wait 10 seconds.

   - 6. Turn the vehicle to the ON mode.

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

   DTC Description	Confirmed DTC	Pending DTC	Freeze Frame
   P1683 Throttle Valve Default Position Spring Performance Problem

   Is DTC P1683 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 the throttle body and the PCM. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the freeze data/on-board snapshot.

2. Throttle body default position spring check:

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

   - 2. Disconnect the intake air duct from the throttle body .

   - 3. Push the throttle valve closed as shown.

   Courtesy of HONDA, U.S.A., INC.

   - 4. Release the throttle valve.

   Does the throttle valve return?

   YES 

   Clean the throttle body . If DTC P1683 is indicated, replace the throttle body .

   NO 

   Replace the throttle body .