DTC P0717

DTC P0717  : Input Shaft (Mainshaft) Speed Sensor (No Signal Input)

DTC (A/T)

1. Problem verification

   -1. Turn the vehicle to the ON mode.

   - 2. Clear the DTC with the HDS.

   - 3. Raise the vehicle on a lift. Make sure it is securely supported, and allow all four wheels to rotate freely.

   - 4. Start the engine, disable the VSA by pressing the VSA OFF button.

   - 5. Run the vehicle with the shift lever in D, and keep the vehicle at speeds over 12 mph (20 km/h). Compare the Input Shaft (Mainshaft) Speed (rpm) and the Output Shaft (Countershaft) Speed (rpm) with the HDS. Slow down, and stop the wheels.

   Signal	Current conditions
   	Values	Unit
   Input Shaft (Mainshaft) Speed (rpm)
   Output Shaft (CounterShaft) Speed (rpm)

   Are the speeds about the same?

   YES 

   Intermittent failure, the system is OK at this time. Check for poor connections and loose terminals between the input shaft (mainshaft) speed sensor 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.

   NO 

   The failure is duplicated. Go to step 2.

2. Open wire check (VCC2 line)

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

   - 2. Disconnect the following connector.

   Input shaft (mainshaft) speed sensor 3P connector

   - 3. Turn the vehicle to the ON mode.

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

   Test condition	Vehicle ON mode
   	Input shaft (mainshaft) speed sensor 3P connector: disconnected
   Test circuit	VCC2
   Test point 1	Input shaft (mainshaft) speed sensor 3P connector No. 3 (GRN)
   Test point 2	Body ground

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

   Is there about 5 V?

   YES 

   The VCC2 wire is OK. Go to step 3.

   NO 

   Repair an open in the VCC2 wire between the input shaft (mainshaft) speed sensor and the PCM.

3. Determine possible failure area (NM line, others)

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

   Test condition

   Vehicle ON mode

   	Input shaft (mainshaft) speed sensor 3P connector: disconnected
   Test circuit	NM
   Test point 1	Input shaft (mainshaft) speed sensor 3P connector No. 2 (RED)
   Test point 2	Body ground

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

   Is there about 5 V?

   YES 

   Go to step 4.

   NO 

   Go to step 5.

4. Open wire check (SG2 line)

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

   - 2. Check for continuity between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	Input shaft (mainshaft) speed sensor 3P connector: disconnected
   Test circuit	SG2
   Test point 1	Input shaft (mainshaft) speed sensor 3P connector No. 1 (GRY)
   Test point 2	Body ground

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

   Is there continuity?

   YES 

   The SG2 wire is OK. Replace the input shaft (mainshaft) speed sensor .

   NO 

   Repair an open in the SG2 wire between the input shaft (mainshaft) speed sensor and the PCM.

5. Shorted wire check (NM line)

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

   - 2. Jump the SCS line with the HDS.

   - 3. Disconnect the following connector.

   PCM connector B (51P) - Refer to: How to Troubleshoot the Fuel and Emissions Systems, or How to Troubleshoot the A/T System (2014 2015)

   - 4. Check for continuity between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	Input shaft (mainshaft) speed sensor 3P connector: disconnected
   	PCM connector B (51P): disconnected
   Test circuit	NM
   Test point 1	Input shaft (mainshaft) speed sensor 3P connector No. 2 (RED)
   Test point 2	Body ground

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

   Is there continuity?

   YES 

   Repair a short to ground in the NM wire between the input shaft (mainshaft) speed sensor and the PCM.

   NO 

   The NM wire is not shorted. Repair an open in the NM wire between the input shaft (mainshaft) speed sensor and the PCM.