DTC P100D

DTC P100D  : Electric VTC Motor Power Relay Circuit Stuck On

NOTE:  Before you troubleshoot, review the general troubleshooting information .

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

   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 circuit board check

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

   -2. Remove and test the relay circuit board .

   Is the relay circuit board OK?

   YES 

   Go to step 3.

   NO 

   Replace the relay circuit board .

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. Measure the resistance between test points 1 and 2.

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

   Is there 1 MΩ or more?

   YES 

   Go to step 4

   NO 

   Repair a short in the EVTC_RLY_CL- wire between the PCM (A30) and the relay circuit board.

4. Shorted wire check (IG_COIL_RLY_OUT/VB1 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
   	Relay circuit board: 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 IG_COIL_RLY_OUT/VB1 wire between the relay circuit board 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. Measure the resistance between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	Relay circuit board: 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 1 MΩ or more?

   YES 

   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 .

   NO 

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