DTC P100C

DTC P100C  : Electric VTC Motor Speed Signal Circuit Malfunction

DTC (PGM-FI)

1. Problem verification

   -1. Turn the vehicle to the ON mode.

   -2. Clear the DTC with the HDS.

   -3. Turn the vehicle to the OFF (LOCK) mode.

   -4. Turn the vehicle to the ON mode.

   -5. Select the VTC TEST in the Function Test Menu with the HDS.

   VTC TEST

   -6. Check for Pending or Confirmed DTCs with the HDS.

   DTC Description	Confirmed DTC	Pending DTC
   P100C Electric VTC Motor Speed Signal Circuit Malfunction

   DTC (PGM-FI)

   Is DTC P100C 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 electric VTC motor 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 .

2. Shorted wire check (EVTS line)

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

   -2. Jump the SCS line with the HDS, and wait more than 1 minute.

   -3. Disconnect the following connectors.

   Electric VTC motor connector B (5P)

   PCM connector E (80P)

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

   Test condition	Vehicle OFF (LOCK) mode
   	Electric VTC motor connector B (5P): disconnected
   	PCM connector E (80P): disconnected
   Test point 1	Electric VTC motor connector B (5P) (female terminals) No. 3:
   Test point 2	Body ground

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

   Is there continuity?

   YES 

   Repair a short in the EVTS wire between the PCM (E30) and the electric VTC motor.

   NO 

   The EVTS wire is not shorted. Go to step 3.

3. Open wire check (EVTS line)

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

   Test condition	Vehicle OFF (LOCK) mode
   	Electric VTC motor connector B (5P): disconnected
   	PCM connector E (80P): disconnected
   Test point 1	Electric VTC motor connector B (5P) (female terminals) No. 3:
   Test point 2	PCM connector E (80P) No. 30

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

   Is there continuity?

   YES 

   The EVTS wire is OK. Go to step 4.

   NO 

   Repair an open in the EVTS wire between the PCM (E30) and the electric VTC motor.

4. Shorted wire check (EVTD line)

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

   Test condition	Vehicle OFF (LOCK) mode
   	Electric VTC motor connector B (5P): disconnected
   	PCM connector E (80P): disconnected
   Test point 1	Electric VTC motor connector B (5P) (female terminals) No. 2:
   Test point 2	Body ground

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

   Is there continuity?

   YES 

   Repair a short in the EVTD wire between the PCM (E46) and the electric VTC motor.

   NO 

   The EVTD wire is not shorted. Go to step 5.

5. Open wire check (EVTD line)

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

   Test condition	Vehicle OFF (LOCK) mode
   	Electric VTC motor connector B (5P): disconnected
   	PCM connector E (80P): disconnected
   Test point 1	Electric VTC motor connector B (5P) (female terminals) No. 2:
   Test point 2	PCM connector E (80P) No. 46

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

   Is there continuity?

   YES 

   Go to step 6.

   NO 

   Repair an open in the EVTD wire between the PCM (E46) and the electric VTC motor.

6. PCM internal circuit check

   -1. Reconnect the following connector.

   PCM connector E (80P)

   -2. Turn the vehicle to the ON mode.

   -3. Measure the voltage between the following test points and body ground individually.

   Test condition	Vehicle ON mode
   	Electric VTC motor connector B (5P): disconnected

   Connector	Terminal
   Electric VTC motor connector B (5P) (female terminals):	No. 2
   	No. 3

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

   Is there any voltage?

   YES 

   Replace the electric VTC motor .

   NO 

   Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or substitute a known-good PCM .