DTC P1298

DTC P1298  : ELD Circuit High Voltage

DTC (PGM-FI)

1. Problem verification

   -1. Turn the vehicle to the ON mode.

   -2. Check the parameter(s) below with the HDS.

   Signal	Threshold		Current conditions
   	Values	Unit	Values	Unit
   ELD (ELECTRIC LOAD VALUE)	Less than 0.2	A

   Do the current condition(s) match the threshold?

   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 ELD and the PCM.

2. Open wire check (IG1 ACG line)

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

   -2. Disconnect the following connector.

   ELD 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
   	ELD 3P connector: disconnected
   Test circuit	IG1 ACG
   Test point 1	ELD 3P connector No. 3 (LT BLU)
   Test point 2	Body ground

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

   Is there battery voltage?

   YES 

   The IG1 ACG wire is OK. Go to step 3.

   NO 

   Check the No. C1 (15 A) fuse in the under-hood fuse/relay box. If the fuse is OK, repair an open in the IG1 ACG wire between the No. C1 (15 A) fuse and the ELD, then do the repair verification.

3. Open wire check (ELD 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 A (51P)

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

   Test condition	Vehicle OFF (LOCK) mode
   	ELD 3P connector: disconnected
   	PCM connector A (51P): disconnected
   Test circuit	ELD
   Test point 1	ELD 3P connector No. 1 (WHT)
   Test point 2	PCM connector A (51P) No. 22 (WHT)

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

   Is there continuity?

   YES 

   The ELD wire is OK. Go to step 4.

   NO 

   Repair an open in the ELD wire between the PCM (A22) and the ELD, then do the repair verification.

4. Open wire check (GND line)

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

   Test condition	Vehicle OFF (LOCK) mode
   	ELD 3P connector: disconnected
   	PCM connector A (51P): disconnected
   Test circuit	GND
   Test point 1	ELD 3P connector No. 2 (BLK)
   Test point 2	Body ground

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

   Is there continuity?

   YES 

   The GND wire is OK. Go to step 5.

   NO 

   Repair an open in the GND wire between the ELD and G301, then do the repair verification.

5. ELD check (substitution)

   -1. Substitute a known-good ELD.

   -2. Reconnect all connectors.

   -3. Turn the vehicle to the ON mode.

   -4. Reset the PCM with the HDS .

   Reset PCM

   -5. Do the PCM idle learn procedure .

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

   DTC Description	Confirmed DTC	Pending DTC	Freeze Frame
   P1298 ELD Circuit High Voltage

   Is DTC P1298 indicated?

   YES 

   Update the PCM if it does not have the latest software, or substitute a known-good PCM , then do the repair verification.

   NO 

   Replace the original ELD , then do the repair verification.

6. Repair verification

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

   -2. Reconnect all connectors.

   -3. Exit the SCS mode with the HDS.

   -4. Turn the vehicle to the ON mode.

   -5. Reset the PCM with the HDS .

   Reset PCM

   -6. Do the PCM idle learn procedure .

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

   DTC Description	Confirmed DTC	Pending DTC	Freeze Frame
   P1298 ELD Circuit High Voltage

   DTC (PGM-FI)

   Is DTC P1298 indicated?

   YES 

   Check for poor connections or loose terminals at the ELD and the PCM. If the PCM was updated, substitute a known-good PCM , then recheck. If the PCM was substituted, go to step 1.

   NO 

   Troubleshooting is complete. If the PCM was substituted, replace the original PCM . If any other Pending or Confirmed DTCs are indicated, go to the indicated DTC's troubleshooting.