DTC P100D

DTC P100D  : Electric VTC Motor Power Relay Circuit Stuck On

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, and wait 5 seconds or more.

   -5. Check for Pending or Confirmed DTCs with the HDS.

   DTC Description	Confirmed DTC	Pending DTC
   P100D Electric VTC Motor Power Relay Circuit Stuck On

   DTC (PGM-FI)

   Is DTC P100D 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. Relay check

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

   -2. Remove the electric VTC relay .

   -3. Test the electric VTC relay .

   Is the relay OK?

   YES 

   Go to step 3.

   NO 

   Replace the electric VTC relay.

3. Shorted wire check (EVTC RLY CL- line)

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

   -2. Disconnect the following connector.

   PCM connector A (50P)

   -3. Check for continuity between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	Electric VTC relay: removed
   	PCM connector A (50P): disconnected
   Test point 1	PCM connector A (50P) No. 30
   Test point 2	Body ground

   Is there continuity?

   YES 

   Repair a short in the EVTC RLY CL- wire between the PCM (A30) and the electric VTC relay.

   NO 

   Go to step 4

4. Shorted wire check (EVTC RLY OUT/VB2(EVTC) line to power)

   -1. Disconnect the following connector.

   Electric VTC motor connector B (5P)

   -2. Turn the vehicle to the ON mode.

   -3. Measure the voltage between test points 1 and 2.

   Test condition	Vehicle ON mode
   	Electric VTC relay: removed
   	PCM connector A (50P): disconnected
   	Electric VTC motor connector B (5P): disconnected
   Test point 1	Electric VTC motor connector B (5P) (female terminals) No. 5:
   Test point 2	Body ground

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

   Is there battery voltage?

   YES 

   Repair a short to power in the EVTC RLY OUT/VB2(EVTC) wire between the electric VTC relay and the electric VTC motor.

   NO 

   Go to step 5

5. Shorted wire check (EVTM 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 connector.

   PCM connector E (80P)

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

   Test condition	Vehicle OFF (LOCK) mode
   	Electric VTC relay: removed
   	PCM connector A (50P): disconnected
   	Electric VTC motor connector B (5P): disconnected
   	PCM connector E (80P): disconnected
   Test point 1	Electric VTC motor connector B (5P) (female terminals) No. 1:
   Test point 2	Body ground

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

   Is there continuity?

   YES 

   Repair a short in the EVTM wire between the PCM (E57) and the electric VTC motor.

   NO 

   The EVTM 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 P100D goes away and the PCM was substituted, replace the original PCM .