DTC P1297: ELD Circuit Low Voltage

NOTE:  Before you troubleshoot, review the general troubleshooting information - Refer to: How to Troubleshoot the Fuel and Emissions SystemsHow to Troubleshoot the CVT System(CVT System) .

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)	More than 72	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. 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.

• 2. Determine possible failure area (ELD, others):

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

  Signal	Threshold		Current conditions
  	Values	Unit	Values	Unit
  ELD (ELECTRIC LOAD VALUE)	More than 72	A

  Do the current condition(s) match the threshold?

  YES 

  Go to step 3.

  NO 

  Replace the ELD .

• 3. Shorted wire check (ELD 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 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 point 1	PCM connector A (51P) No. 46
  Test point 2	Body ground

  Is there continuity?

  YES 

  Repair a short in the ELD wire between the PCM (A46) and the ELD.

  NO 

  The ELD wire is OK. Update the PCM if it does not have the latest software, or substitute a known-good PCM , then recheck. If DTC P1297 goes away and the PCM was updated, troubleshooting is complete. If DTC P1297 goes away and the PCM was substituted, replace the original PCM .